946 mL – 1 U.S. Quart - BP

946 mL – 1 U.S. Quart
TURBO OIL
2380
TURBINE ENGINE & ACCESSORY

I n t ro d u c t i o n
While the changing of our label for turbo oil is relatively
new, our experience in lubricating turbine engines is
not. In 1949 the Research Division, which was initially
responsible for the development of our turbo oils,
helped turn the vision of gas turbine powered flight into
the reality we accept for granted today. By developing
the first synthetic oil that could be used successfully in
gas turbine engines, much wider fields to the aircraft
designer were opened. This position of leadership has
never been relinquished and you can depend on us just
as you did in 1949.
BPTO 2380
BP Turbo Oil (BPTO) 2380, available throughout the
world, is now being used by over 350 airlines
representing a majority of the free world’s commercial
airline requirement for 5 cSt turbo oils. This fact attests
to the outstanding performance of this product in the
wide variety of engines and accessories now in service.
Table of Contents
Page
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
A p p r o v a l s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Technical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Quality Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Future Outlook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Health and Safety Precautions . . . . . . . . . . . . . . . . . . . . 7
A p p e n d i x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Inspections
Printed in U.S.A., 04/02
1

P roduct Description
BPTO 2380 is a synthetic oil having a viscosity of 5
centistokes at 210°F that is approved against US
military specification MIL-PRF-23699F-STD, DEF STAN
91-101/2* (DERD 2499), and meets the requirements of
most jet engines and associated accessories. It is a
Type II oil which provides a more balanced combination
of thermal and oxidation stability, load-carrying capacity,
lower volatility and low temperature flow characteristics
than other 5 cSt jet engine oils. These features provide
long trouble-free performance under most conditions.
Synthetic oils of this type are not all identical. The
performance advantages of BPTO 2380 are achieved by
careful selection and balance of basestocks and
additives to provide the desired performance.
Details of laboratory analyses of physical, chemical,
and performance properties are provided in the
Appendix. Significant performance properties are
discussed below. Where detailed information on the
laboratory test methods and the significance of results
is desired, a member of our BP technical staff will be
happy to provide them.
V I S C O S I T Y : While most Type II synthetic turbo oils
have essentially the same viscosity at 99°C (between 5
and 5.5 centistokes), BPTO 2380 is less viscous at very
cold temperatures than other Type II oils. This offers a
distinct advantage, which permits BPTO 2380 to be
used in some critical applications where other Type II
oils are excessively viscous. For example, at -40°C the
viscosity of BPTO 2380 is well below that of
competitive products.
Competitive Products
BPTO 2380 A B
Viscosity, cSt
at -40°C 7950 12 , 390 10 , 640
VAPOR PHASE DEPOSITS: A major advantage of
BPTO 2380 is its ability to limit vapor-phase deposits.
With some competitive oils, heavy deposits have
formed where the oil mist and vapors come in contact
with hot engine surfaces resulting in migrating deposits.
LOAD CARRYING: BPTO 2380 provides load carrying
ability, as measured in the Ryder Gear Test well in
excess of requirements established by the engine and
equipment manufacturers. Long life of bearings, gears,
and other highly loaded lubricated surfaces is thus
assured under normal operating conditions.
C L E A N L I N E S S : Minimum formation of varnish or
sludge deposits is one of the characteristic advantages
of BPTO 2380. Long periods of operation are possible
without the danger of scavenge pump screen plugging
or the corrosion that often accompanies excessive
d e p o s i t s .
BULK STABILITY (resistance to physical or chemical
change resulting from oxidation): The high
degree of oxidation resistance of BPTO 2380 permits
long periods of operation without significant increase in
viscosity or total acidity, the two principal indicators of
product oxidation. The need to change oil because of
oxidation effects is rare when using BPTO 2380. Most
users find it unnecessary to make oil changes in spite of
occasional mechanical abnormalities that create
unusually severe oxidizing conditions.
C O M P A T I B I L I T Y :While considerable laboratory data is
available to demonstrate the compatability of BPTO
2380 with metals, elastomers and other lubricants, the
extensive airline experience most adequately demonstrates
this property. Details are given in the section on
“Product Performance.”
SEAL WEAR: Proper functioning of carbon seals is
essential for the life of the engines that use this type of
bearing compartment sealing arrangement. Poor seal
performance may be caused by lubricant properties that
promote (or fail to prevent) wear of the carbon at the
carbon-to-steel face. BPTO 2380 has provided the
dependable performance in numerous airlines that was
predicted by extensive laboratory tests.
* BPTO 2380 is approved against DEF STAN 91-101/2 (DERD 2499)
for both OX-27 and OX-28 requirements. OX-27 is for use in military
gas turbines and accessories. OX-28 is for use in marine gas
t u r b i n e s .
2

P roduct Perf o rm a n c e
AIRLINE SERVICE: The fact that BPTO 2380
represents the majority of the free world requirement
for 5 cSt turbo oils speaks highly of its performance.
Over 350 airlines are now accumulating approximately
50 million engine hours a year on this lubricant.
Outstanding bulk stability, excellent cleanliness, as
evidenced by low deposit levels in vapor phase areas,
and very good anti-corrosion qualities have made BPTO
2380 the leader in gas turbine lubrication.
OIL CONSUMPTION: Typical consumption with BPTO
2380 ranges from a low of 0.07 litres (0.06 quarts) per
engine hour to a high of 0.59 (0.62).
Evaporation loss—though a factor—is a minor one.
Based upon laboratory tests, BPTO 2380 has a
directional advantage in this respect.
Evaporation Loss,
% at 6 1 ⁄2 hours BPTO 2380 Oil A
at 400°F, Sea Level 3 . 85 4.58
at 400°F, 40,000 ft. 8 . 80 10.09
at 450°F, Sea Level 11 . 81 15.62
at 450°F, 40,000 ft. 21 . 50 27 . 82
In actual practice, the data suggest that engines cannot
distinguish differences in consumption among various
Type II oils. Experience in monitoring oil consumption
over long periods indicates that:
a. Oil consumption is governed more by mechanical
factors than by differences between oils of similar
type.
b. The principal factor related to lubricant chemistry that
affects oil consumption is volatility or loss by
evaporation and this effect is minor.
c. Large differences in consumption among airlines
operating identical equipment in similar route structures
with the same oil are generally attributed to
differences in methods of data collection and record
k e e p i n g .
C O M P A T I B I L I T Y
BPTO 2380 is compatible with other turbo oils meeting
the same specifications to the extent that an
inadvertent mixing or emergency top-off with another
approved brand will not cause additive separation to
occur. However, most engine builders do not
recommend indiscriminate mixing of approved oils
and we agree with this principle.
BPTO 2380 performance is outstanding in the critical
area of compatibility with elastomers such as those
used in O-ring seals. Excessive swelling or shrinking of
seals can cause severe oil leakage. In new engines or in
high-time engines where BPTO 2380 has replaced
another lubricant, there has been no known incident of
oil leakage due to oil-elastomer incompatibility.
Deposit washing is a problem with some turbo oils. This
is the situation where engine deposits, laid down by a
previous oil, can sometimes be loosened or washed off
by changing to a different oil. The loosened deposits
can plug filter screens, which seriously reduces oil flow.
This is more apt to occur when changing over high-time
engines where deposits have had a chance to dry out
during short-term storage or deactivation for service or
repair. Laboratory tests and many years of service have
shown that changing engines to BPTO 2380 should
cause no concern about deposit loosening and
migration, under normal circumstances.
SHELF LIFE
The shelf life of BPTO 2380 can extend beyond four
years when stored in original, unopened quart cans
under acceptable conditions, such as away from
extreme heat and moisture. Likewise, drummed
product (includes 55 gallon drum and 5 gallon pails) has
an expected shelf life of three years minimum. For all
package styles, shelf life can be increased significantly
beyond those stated above, depending upon storage
conditions. Please contact your bp representative if you
have any questions about product usability.
3

A p p ro v a l s
BPTO 2380 is approved for use in most engines and
accessories in airline service today. The approvals listed
below are current as of the time of printing; however,
the respective manufacturer’s manuals and service
bulletins should be consulted.
E N G I N E S
CFM International: BPTO 2380 is approved for use in
CFM 56 engines (CFM 56 Service Bulletin 79-001).
F l y g m o t o r : BPTO 2380 is approved for RM8A, B
engines (approved on a proprietary basis by Volvo
F l y g m o t o r ) .
General Electric Company: BPTO 2380 conforms to
GE Spec. D50TF1-S4 Class B and is fully qualified for
use in most GE models according to:
CJ610 Maintenance Manual Page 202A/202B
CF700 Maintenance Manual Page 202
CF6 Service Bulletin 79-1
CF34 Maintenance Manual Section 72-00-00
CT7 Maintenance Manual Section 72-00-00
H o n e y w e l l / A l l i e d S i g n a l : BPTO 2380 is approved for
use in TPE-331, TSE 331 (Service Information Letter
P331-2) and TFE-731 engines (Service Information
Letter F731-11).
BPTO 2380 is approved for use in T-53 engines (Service
Bulletin No. 36) and T-55 engines (Lycoming letter of
Sept. 5, 1975). BPTO 2380 is also approved for ALF 502
engines (ALF 502 Maintenance Manual—Section 72-00-
00 page 12) and LF 507 engines (LF 507-1H
Maintenance Manual—Section 72-00-00 page 23).
IAE International: BPTO 2380 is approved for the
V2500 engine (IAE V2500 series documents IAE-0043
and IAE-0174).
M o t o r l e t : BPTO 2380 is approved for the M601 engine
(Motorlet letter dated Aug. 9, 1994).
Pratt & Whitney: BPTO 2380 is approved under
specifica-tion PWA 521 (Service Bulletin No. 238) for
use in all models of engines.
Pratt & Whitney Canada: BPTO 2380 is approved for
use in all PT6, ST6, (Service Bulletin Nos. 1001, 3001,
4001, 5001, 9001, 10001, 11001, 12001 and 13001),
JT15D (Service Bulletin No. 7001), PW100 series
engines (S/B 20001), and PW300 series engines (S/B
2 4 0 0 1 ) .
Rolls-Royce Ltd.: BPTO 2380 is fully approved for Spey
models (Service Bulletin SP 12-8), for use in Avon
4
models (Service Bulletin, AV 89-22), and for use in
Gnome models H1400 and H1400-1 (Type Approval
Certificate No. Gnome 4&5, respectively). BPTO 2380 is
fully approved for the RB 211-524 models (Service
Bulletin RB 211-12-5019) and RB 211-535C
(Maintenance Manual M-211 (535)-B Section 12-13-01).
BPTO 2380 is also approved for the RB 211-22B models
(Service Bulletin RB 211-12-5019) and for Tay models
(all Marks) (R-R letter dated 17 July 1986 and 24 May
1990). BPTO 2380 is approved for all GEM marks (R-R
approval letter issue 3.1 March 1988).
Rolls-Royce/Allison Engine Company: BPTO 2380 is
approved against EMS 53 and for use in 250, 501 and
T56 series engines according to customer service
letters:
250-C18 CSL-2
250-B15G TP CSL-2
250-C20/C20B CSL-1002
250-B17/B17B TP CSL-1002
250-C28 CSL-2002
250-C30 CSL-3002
501-D13 CSL 161
501-D22 CSL 1002
501-D36 CSL 2002
T56-A-14 CSL 4002
T56-A-15 CSL 1502
N O T E : Future 250 oil approvals will be listed in
Section 72-00-00 of the respective operation and
maintenance manual for each engine model.
BPTO 2380 is also approved for the AE 2100 and AE
3007 engine models.
R o l l s - R o y c e / S N E C M A :BPTO 2380 is approved for use
in M.45H (Rolls-Royce letter of Dec. 4, 1975).
Rolls-Royce Turbomeca: BPTO 2380 is approved for
Adour engines (Rolls-Royce Technical Instruction 28).
S N E C M A : BPTO 2380 is fully approved for use in all
Atar series engines (Technical document MTC No.
6015, latest edition), for the M53 engine (SNECMA
letter dated 10/1/87), and for the M88-2 engine
(SNECMA letter dated Nov. 21, 1995).
T u r b o m e c a :BPTO 2380 is approved (Turbomeca letter
to ESAF in 1994) for following engines:
Arriel
Makila
Astazou XVI A r r i u s
TM 333
BPTO 2380 is approved as alternate (with restrictions)
for the Astazou (except XVI), the Artouste and the
Bastan engines. See applicable maintenance manual for
s p e c i f i c s .
T u r b o m e c a — S N E C M A : BPTO 2380 is approved for
the Lazarc engines (SNECMA letter Nov. 18, 1975).

A p p rovals (Cont’d)
A C C E S S O R I E S
Carrier Corporation: BPTO 2380 is approved for use in
Carrier Freon compressors (Carrier letter dated April 25,
1969 to Seaboard World Airlines).
Foote Brothers Company: BPTO 2380 is approved for
gear box for JT3C-6 engines and for two-speed gear
box on Electra aircraft.
General Electric Company: BPTO 2380 conforms to
GE specification D50TF1-S4 class B and is approved for
use in CSD Model 2CLKH40B9.
Hamilton Sundstrand
S t a r t e r :BPTO 2380, via its MIL-PRF-23699 approval,
is approved for the following starter units: PS200,
PS600, PS700.
APU: BPTO 2380 is approved for Model P&WC ST6L
(Pratt & Whitney Canada, SB No. 9001). BPTO 2380
is approved for APU models APS500, APS1000,
APS2000, APS3200 via its MIL-PRF-23699 approval.
Air Cycle Machines: BPTO 2380 is approved for
R70-3W air cycle machine. (Service Bulletin HS Code
R70-3W No. 8). It is also approved for R72-3W,
R76-3WR as well as ACM’s in 747 and L-1011
(Appropriate service manuals and Hamilton Standard
letter 9/1/83).
C S D / I D G : BPTO 2380 is approved for all constant
speed drive and integrated drive generator models
(Sundstrand Component Maintenance Manual part
no. 729184 section 24-11-66).
Honeywell/AlliedSignal
S t a r t e r s : BPTO 2380 is approved for all starters
(AiResearch Engineering Report GT-7800J).
Lucas Aerospace Ltd.: BPTO 2380 is approved for the
AE 8909 integrated drive generator in Concorde (Lucas
Engineering Report CS 0284).
M i c r o t u r b o :BPTO 2380 is approved for use in Saphir I,
II, and III, and IV APU (Service Bulletin 49-10-07).
Normalair Ltd.: BPTO 2380 is approved and
recommended for cold air unit (ref. Operator’s Manual).
Plessey Company Ltd.: BPTO 2380 is fully approved
for use in CSDS units manufactured by the Plessey
Company Ltd. (letter dated Sept. 18, 1970).
Pratt & Whitney Canada: BPTO 2380 is approved for
use in the PW901A APU (Ref. Component Maintenance
Manual APU part no. 3910001).
Rotax Ltd.: Approvals and approval procedures for
Rotax Ltd. CSD units require discussion with
m a n u f a c t u r e r .
S o l a r : BPTO 2380 is approved for APU models T-62T-
25,-29,-39,-40 via its MIL-PRF-23699 approval.
T u r b o m e c a :BPTO 2380 is approved for use in the AST
600 auzillary power unit (APU). It is approved as
alternate (with restrictions) on the AST 950 APU. See
applicable maintenance manuals.
O T H E R
Bell Helicopter Co.: BPTO 2380 is approved for use in
engine, transmission, and tail rotor gear box of Models
206, 212, 214 and in engine and transmission of model
222 helicopter (Bell Materials Bulletin FW 1440C).
Sikorsky Aircraft Division: BPTO 2380 is approved for
use in engine, intermediate gear box, and tail gear box
of models S61L and S51N. (Sikorsky Notice To
Commercial Operators 61-94).
Auxiliary Power Units and Ground Power Units:
BPTO 2380 is approved for all models (AiResearch
Engineering Report GT-7800J).
Turbo Machinery: Cooling turbines, engine-driven
compressors, turbine-driven compressors, and
turbine-driven fans. BPTO 2380 is approved for most
models in this group (S.I.L. 100-300).
Turbine Reversing Actuator: Part No. 127038-1-3
uses engine oil and BPTO 2380 is approved (P&W
SB No. 238).
5

Technical Serv i c e
BP provides technical service in support of our products
and their performance. The two vital elements of this
service consist of a highly qualified Technical Staff and a
complex of Sales Service Laboratories. As the name
implies, the Technical Staff maintains contact with
customers, engine and airframe manufacturers, and
accessory equipment manufacturers. The Sales Service
Laboratories provide laboratory services to assist in
used oil analyses.
TECHNICAL STAFF
The Technical Staff consists of aviation career
specialists to provide service to customers and to work
with major airframe and engine builders. These
specialists have at their disposal the full facilities of
Sales Service Laboratories and BP product research
facilities. This system ensures that each individual is
well informed on equipment developments, industry
problems and product performance. Thus, while only
one member of the Technical Staff will be the principal
contact with a customer, that member will reflect the
experience and knowledge of the entire organization
and will have ready access to all facilities of the
corporation for assistance as required on behalf of his
assigned accounts. The fact that the Technical Staff is
part of the headquarters of their respective
organizations assures that the staff members have
headquarters’ authority to assist in effective handling of
their assignments .
BP provides worldwide technical service in support of
turbo oil customers. Service is coordinated by Air BP
Lubricants from its office in Parsippany, New Jersey.
SALES SERVICE LABORATORIES
The Sales Service Laboratories are located throughout
the world at BP’s major refineries and blending plants.
These laboratories in turn are backed up by the full
facilities of BP research facilities in Naperville, Illinois.
PRODUCT SAMPLE PROCEDURES
AND HANDLING
The base purpose of analyzing product samples is to
assist in solving or defining a problem that may be
related to the performance of the lubricant. Thus, the
sample size and handling procedures may vary with the
nature of the suspected problem and with the analytical
techniques required for definition and solution.
Experience has provided standardized procedures
applicable in many instances. Details are available from
a member of the Technical Staff.
Quality Contro l
BPTO 2380 is blended in batches with each batch composed
of the identical chemicals, in the same
proportions, used in all previous batches. Approximately
25 tests are performed on each batch to evaluate the
physical, chemical and performance characteristics of
the product. Historically, the batch-to-batch variations
are within the limits of test repeatability.
As each batch is prepared, a quantity of product is set
aside in sealed containers. Periodically, a container is
opened and tested to ensure that no change has
occurred in the physical or chemical properties as a
result of time. Customers can enhance the product
storage stability life by using first-in, first-out inventory
procedures and maintaining the oil under normal
storage conditions (indoors protected from excessive
heat). Within these parameters, experience has shown
BPTO 2380 shelf life has no effect on its performance.
It is suggested that oil that has been exposed to
extremes of high temperature and humidity in storage
be retested.
Most important in monitoring product quality is the
frequent observation of airline engines and accessories.
A specialized rating system has been developed by the
Technical Staff in cooperation with the product research
facilities. This system provides for numerical
descriptions of engine mechanical condition and
lubricant performance for all critical lubricated
components. By this means, the conditions of two or
more engines can be compared even though they may
be inspected at different times. The system thus
provides a yardstick for measuring the uniformity of
performance in operating engines. This method of
documentation also permits an appraisal of engine
mechanical condition, an evaluation of the effectiveness
of mechanical modifications and a comparison of the
performance of different lubricants.
F u t u re Outlook
As documented in previous sections, BPTO 2380 is providing
outstanding performance in current equipment
including the Boeing 707, 717, 727, 737, 747, 757, 767,
777; McDonnell Douglas DC8, DC9, DC10, MD11,
MD90; Lockheed L-1011 and the Airbus A300, A310,
A320, A330, A340. Based on this background there is
good evidence that BPTO 2380 will continue to satisfy
the requirements of airline equipment for many more
years despite increasing TBO’s and HSI intervals.
6

While the outlook for continuing excellent performance
from BPTO 2380 is bright, our research continues to
develop and evaluate new oils aimed at providing even
greater value to the world’s airlines.
Through continuing monitoring of product performance
and technological developments, our affiliates anticipate
being able to provide synthetic turbo oils that will satisfy
the most critical needs of the aviation industry.
Health and Safety
P re c a u t i o n s
Health studies have shown that under normal
conditions of use, turbo oil presents a low risk to human
health. The major health risk from exposure to turbo oil
is temporary irritation of the eyes, skin, and respiratory
tract. Temporary irritation is a common hazard of most
petroleum hydrocarbons and synthetic lubricants, like
turbo oil. Irritation occurs when product is applied
directly to the eyes, repeatedly to the skin, or when
high levels of vapors or mist are inhaled. Because
sensitivity to irritation can vary from person to person,
direct contact with the eyes and skin, and inhalation of
vapors or mist should be minimized. Prolonged and
repeated skin contact with turbo oil can also cause
temporary dermatitis.
You can protect yourself from routine turbo oil-related
hazards by using appropriate engineering controls and
work practices, and by wearing proper eye protection,
gloves and clothing. Additional important health and
safety information for this product is provided on the
MSDS, which is available from your BP representative.
The exposure guidelines found on the MSDS should
always be followed.
Turbo oil should never be siphoned by mouth.
However, if the oil is swallowed, DO NOT induce
vomiting, but seek medical advice immediately to guard
against the hazard of aspirating oil into the lungs. While
the oil is not highly toxic when swallowed, lung
aspiration can result in chemical pneumonia that may
not occur for some time.
In the event of fire or leakage of product onto an
extremely hot surface which causes turbo oil to burn,
emission of fumes and combustion products that are
potentially irritating, noxious, and toxic may occur, such
as aldehydes and carbon monoxide. Take precautions
to avoid and/or minimize exposure under these
conditions. Use supplied oxygen if necessary.
Additional health and safety information may be
obtained by writing to: Air BP Lubricants, Air BP, Maple
Plaza II-1N, Six Campus Drive, Parsippany, NJ 07054.
Because the vapor pressure of turbo oil is very low,
generation of vapor under ambient temperature
conditions is unlikely. At elevated temperatures,
however, product vapor may be generated at
concentration levels sufficient to cause irritation,
particularly in poorly ventilated areas or in confined
spaces. If this occurs, or if a mist of turbo oil is
generated, precautions should be taken to avoid inhaling
vapor or mist at concentrations above the exposure
guidelines specified on the product Material Safety Data
Sheet (MSDS). Prolonged over-exposure to vapors or
mist could cause headache, light-headedness,
dizziness, and potentially unconsciousness, but normal
conditions of use will not produce these effects.
7

Appendix
BPTO 2380 Typical Inspections vs. MIL-PRF-23699F-STD Specification
The values shown here are representative of current production. Some are controlled by manufacturing specifications,
while others are not. All of them may vary within modest ranges.
FED. TEST
ASTM or SAE METHOD
MILITARY SPECIFICATION TESTS BPTO MIL-PRF-23699F STANDARD STD. NO. 791
2380 MIN. MAX.
Viscosity, cSt @ – 40°C (– 40°F) . . . . . . . . . . . . . . . . . . . . 7950 — 13,000 D2532
% change – 40°C (– 40°F), 72 hrs . . . . . . . . . . . . . . . . . 0.7 — ±6 D2532
cSt @ 100°C (212°F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.97 4.90 5.40 D445
cSt @ 40°C (104°F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2 23.0 — D445
Flash point, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 246 — D92
Pour point, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 57 — – 54 D97
TAN, mgKOH/g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.43 — 1.00 SAE-ARP5088
Evaporation loss, %, 6.5 hrs. @ 204°C (400°F) . . . . . . . . 3.0 — 10 D972*
Foam 1 24°C (75°F), ml/collapse time . . . . . . . . . . . . . . . 9/0 — 25/0 D892*
Foam 2 93.5°C (200°F), ml/collapse time . . . . . . . . . . . . 8/0 — 25/0
Foam 3 24°C (75°F), ml/collapse time . . . . . . . . . . . . . . . 8/0 — 25/0
Rubber compatibility ..................................................... 3604/3433
AMS No. 3217/1, % Swell, 72 hr. @ 70°C (158°F) . .. 14.4 5 25
AMS No. 3217/4, % Swell, 72 hr. @ 204°C (400°F). . 9.9 5 25
Si Rubber, % Swell, 96 hr. & 121°C (250°F) . . . . . . . . 11.4 5 25
Tensile strength loss, %. . . . . . . . . . . . . . . . . . . . . . . . – 7.3 — 30
Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pass Pass 3403*
Turbidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pass None
Sediment, mg/l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 20
Storage stability, 6 wks.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pass Pass Part 4.4.2 of 23699 Spec.
Thermal stability and corrosivity, 274°C (525°F) ........... 3411
% Vis change. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6 — 5.0
TAN change, mg KOH/g . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 — 6.0
Metal wt. change, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . – 0.2 — 4.0
Sediment 1.2 micron, mg/l . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9 — 10 3010
Ash, mg/l. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 — 1
Corrosion and oxidative stability, 72 hrs. @ 175°C (347°F) 5308*
Steel, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.02 — ±0.2
Ag, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 — ±0.2
Al, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.02 — ±0.2
Mg, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.02 — ±0.2
Cu, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.07 — ±0.4
Vis, change @ 37.8°C (100°F), % . . . . . . . . . . . . . . . . . . 8.0 — – 5 to +15
TAN change, mgKOH/g. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.11 — 2.0
Sludge, mg/100ml . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 — 50
Corrosion and oxidative stability, 72 hrs. @ 204°C (400°F) 5308*
Steel, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.01 — ±0.2
Ag, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 — ±0.2
Al, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.01 — ±0.2
Mg, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 — ±0.2
Cu, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.04 — ±0.4
Vis, change @ 37.8°C (100°F), % . . . . . . . . . . . . . . . . . . 18.9 — – 5 to +25
TAN change, mgKOH/g. . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 — ±3.0
Sludge, mg/100ml . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 — 50
* Modified
8

A p p e n d i x
BPTO Oil 2380 Typical Inspections vs. MIL-PRF-23699F-STD
Specification
(Cont’d)
FED. TEST
ASTM or SAE METHOD
MILITARY SPECIFICATION TESTS BPTO MIL-PRF-23699F STANDARD STD. NO. 791
2380 MIN. MAX.
Corrosion and oxidative stability, 72 hrs. @ 218°C (425°F) 5308*
Steel, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.09 — ±0.2
Ag, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – .02 — ±0.2
Al, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.01 — ±0.2
Ti, mg/cm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +.02 — ±0.2
Vis, change @ 37.8°C (100°F), % . . . . . . . . . . . . . . . . . . 40.3 Report
TAN change, mgKOH/g. . . . . . . . . . . . . . . . . . . . . . . . . . . 7.8 Report
Sludge, mg/100ml . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 50
Trace metal content, ppm.............................................
Part 4.4.6 of 23699 Spec.
Al. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 — 2
Fe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 — 2
Cr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 — 2
Ag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 — 1
Cu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 — 1
Sn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6 — 11
Mg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 — 2
Ni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 — 2
Ti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6 — 2
Si. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 — 10
Zn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 — 2
Pb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 — 2
Mo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 — 3
Ryder gear .................................................................... 6508
Av. rel. rating, % of reference oil . . . . . . . . . . . . . . . . . . 128 102 —
No. of determinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 — —
Shear stability ...............................................................
D2603
Vis loss @ 40°C (104°F), % . . . . . . . . . . . . . . . . . . . . . . . 0.3 — 4
OTHER TESTS
SOD Lead Corrosion, mg/in. 2 . . . . . . . . . . . . . . . . . . . . . . . . – 0.15 — — 5321
Evaporation Loss, %, 6 1 ⁄2 hrs.........................................
D972
@ 400°F (40,000 ft.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.80 — —
@ 450°F (Sea Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.81 — —
@ 450°F (40,000 ft.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.50 — —
Specific Gravity, 60/60°F . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.975 — — D1298
Water Content, PPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 — — D1744
Coefficient of Expansion (Avg: – 40°F to 300°F) . . . . . . . 0.00045 — — BP Test Method
Specific Heat BTU/lb/°F ................................................
D2766
@ 100°F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.444 — —
@ 200°F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.493 — —
@ 300°F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.533 — —
@ 400°F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.565 — —
Thermal Conductivity, BTU/(hr.)(ft. 2 )(°F/ft.)....................
D2717
@ 100°F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.077 — —
@ 400°F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.067 — —
* Modified
9

Appendix
BPTO 2380 Typical Inspections vs. DEF STAN 91-101/2 Specification
(Replaces DERD 2499)
The values shown here are representative of current production. Some are controlled by manufacturing specifications,
while others are not. All of them may vary within modest ranges.
10
..................................................................................... DERD 2499 TEST METHOD
MILITARY SPECIFICATION TESTS ........................ BPTO 2380 MIN. MAX. ASTM IP DERD
(1) Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pass Clear & Bright
(2) Density @ 15°C, kg/1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.975 Report D1298 160
..................................................................................... or or
..................................................................................... D70 190
(3) Flash point, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 220 — D93 34
(4) Pour point, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 57 — – 54 D97 15
(5) Saponification number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326 Report D94* 136*
(6) Total acid number, mg KOH/g . . . . . . . . . . . . . . . . . . . . . . 0.38 Report D664 177
(7) Viscosity, kinematic, cSt (mm 2 /s) ................................. D445 71
At 100°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.97 4.90 5.40
At 40°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2 — 30
At – 40°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7950 — 13,000
(8) Friction and wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Initial seizure load (60 secs.) kg . . . . . . . . . . . . . . . . . . . 112.5 65
Wear scar diameter @ 6 kg load (60 sec.), mm . . . . . 0.42 Report
(9) Foaming characteristics, @ air flow .............................. 15
Rate of 100 ml/min....................................................
Proc. A
Foam volume, ml . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.38 10
Foam collapse time, secs. . . . . . . . . . . . . . . . . . . . . . 5.52 20
(10) High temperature oxidative stability............................. 9*
Total acid number increase, mg KOH/g. . . . . . . . . . . . 0.2 1.0
(11) Sediment, % mass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003 0.005 12
..................................................................................... Proc. B
(12) Trace element content, mg/kg
Al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil 2 Method subject to
Cr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil 5 approval of Q.A.A.
Cu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil 2
Fe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 2 BP method:
Pb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil Report USN NAVAIR 17-15-BF-62
Mg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 2
Ni. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 5
Si . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Report
Ag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil 2
Ti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil 2
(13) Confined heat stability:................................................. 1
S temperature, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Report
Viscosity stability @ 100°C, vis. dec., % . . . . . . . . . . . Nil 5.0
(14) Corrosivity:
New oil, 192 hrs. @ 200°C
wt. change, mg/100 mm 2
Aluminium alloy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil – 0.1 to +0.1 3
Copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil – 1.0 to +0.1 Proc. A
Titanium-copper alloy . . . . . . . . . . . . . . . . . . . . . . . . . . Nil – 0.2 to +0.1
Copper-nickel-silicon alloy. . . . . . . . . . . . . . . . . . . . . . Nil – 0.5 to +0.1
Mild steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.1 Report
Lead bronze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.1 – 0.5 to +0.1
High carbon chromium steel . . . . . . . . . . . . . . . . . . . +0.1 – 0.2 to +0.1
Lead brass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1.1 – 1.5 to +0.1
Ni-Cr case hardened steel. . . . . . . . . . . . . . . . . . . . . . +0.1 – 0.2 to +0.1
High speed steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.1 – 0.2 to +0.1
Nickel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil – 0.1 to +0.1 3
Silver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil – 0.2 to +0.1 Proc. B.
Magnesium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 4.1 Report 3
............................................................................... Proc. C
* Modified

Appendix
BPTO 2380 Typical Inspections vs. DEF STAN 91-101/2 Specification
(Replaces DERD 2499) ( C o n t ’ d )
..................................................................................... DERD 2499 TEST METHOD
MILITARY SPECIFICATION TESTS ........................ BPTO 2380 MIN. MAX. ASTM IP DERD
Cr-Mg alloy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nil Report 3
Cr-Mg alloy, phenolic resin coated . . . . . . . . . . . . . . Nil Report Proc. D
Pretreated oil, 192 hrs. @ 200°C
wt. change, mg/100 mm 2
Aluminum alloy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.1 – 0.1 to +0.1 3
Copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.2 – 1.5 to +0.1 Proc. A
Titanium-copper alloy . . . . . . . . . . . . . . . . . . . . . . . . . . +0.1 – 0.1 to +0.1
Copper-nickel silicon alloy. . . . . . . . . . . . . . . . . . . . . . Nil – 1.5 to +0.1
Mild steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1.3 Report
Lead bronze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.2 – 1.5 to +0.1
High carbon chromium steel . . . . . . . . . . . . . . . . . . . +0.1 – 3.0 to +0.1
Lead brass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1.3 – 4.0 to +0.1
Ni-Cr case hardened steel. . . . . . . . . . . . . . . . . . . . . . +0.1 – 3.0 to +0.1
High speed steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.1 – 1.0 to +0.1
(15) Elastomer Compatibility ............................................... 4
OX-27 & OX-28
Nitrile, 192 hrs. @ 130°C
% Swell @ 1 ⁄2 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 10 20
% Swell @ 48 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.5 20.5
Condition after band test . . . . . . . . . . . . . . . . . . . . Passes No cracking
Silicone, 192 hrs. @ 175°C
% Swell @ 1 ⁄2 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 5 15
% Swell @ 48 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Nil —
Condition after band test . . . . . . . . . . . . . . . . . . . . Passes No cracking
Reversion test: Permanent
indentation mm X 10 -2 . . . . . . . . . . . . . . . . . . . . . . 13 — 25
OX-27
Viton, 192 hrs. @ 200°C
% Swell @ 1 ⁄2 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.5 20 35
% Swell @ 48 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.5 20.5 32.5
Condition after band test . . . . . . . . . . . . . . . . . . . . Passes No cracking
Viton LCS, 192 hrs. @ 200°C
% Swell @ 1 ⁄2 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Report
% Swell @ 48 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 12 24
Condition after band test . . . . . . . . . . . . . . . . . . . . Passes No cracking
OX-28
Viton, 384 hrs. @ 200°C
% Swell @ 1 ⁄2 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.5 20 35
% Swell @ 48 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . Passes 28.5 40.5
Condition after band test . . . . . . . . . . . . . . . . . . . . Passes No cracking
Viton LCS, 384 hrs. @ 200°C
% Swell @ 1 ⁄2 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.5 15 35
% Swell @ 48 hr. . . . . . . . . . . . . . . . . . . . . . . . . . . . Passes 28.5 40.5
Condition after band test . . . . . . . . . . . . . . . . . . . . Passes No cracking
(16) Engine test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Passed Data on file with M.O.D.
(17) Homogeneity:............................................................... 5
High temperature, 210°C . . . . . . . . . . . . . . . . . . . . . . . . Passes No visible signs of Proc. A
..................................................................................... separation, gelation
..................................................................................... or formation of
Low temperature, – 54°C . . . . . . . . . . . . . . . . . . . . . . . . Passes insoluble matter. Proc. B
(18) Miscibility and compatibility.......................................... 8
Miscibility:
@ 210°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Passes No visible signs of Proc. A
..................................................................................... separation, gelation
..................................................................................... or formation of
@ – 54°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Passes insoluble matter. Proc. B
Compatibility:
Increase in toluene insolubles, % wt. . . . . . . . . . . . Passes — 0.05 Proc. C&D
..................................................................................... Data on file with M.O.D.
11

Appendix
BPTO 2380 Typical Inspections vs. DEF STAN 91-101/2 Specification
(Replaces DERD 2499) ( C o n t ’ d )
12
..................................................................................... DERD 2499 TEST METHOD
MILITARY SPECIFICATION TESTS ........................ BPTO 2380 MIN. MAX. ASTM IP DERD
(19) Hydrolytic stability
Calculated time to produce increase
in acidity @ 40°C of 1.5 mg KOH/g, hr. . . . . . . . . . . . . 880 850 — 6
(20) Load/carrying ability
Four ball machine assessment:................................. 239*
Mean Hertz load, Kg. . . . . . . . . . . . . . . . . . . . . . . . . . . 14.75 Report
Welding load, Kg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Report
Wear load curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pass Report
Initial seizure load, Kg . . . . . . . . . . . . . . . . . . . . . . . . . 74 65 —
IAE Gear machine rating ........................................... 166*
Mean relative failure load
@ 2000 RPM, % . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 75 —
@ 6000 RPM, % . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 65 —
90% confidence interval, %
@ 2000 RPM, % . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Not greater than 0.6
@ 6000 RPM, % . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 X mrfl at each speed
(21) Oil mist coking.............................................................. 13
@ 230°C, % of reference . . . . . . . . . . . . . . . . . . . . . . . . 157 Report
@ 290°C, % of reference . . . . . . . . . . . . . . . . . . . . . . . . 100 Report
(22) Volatility and high temp. oxidative stability................... 9
Temperature parameters @ 192 hr.
E Temperature, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 185 —
A Temperature, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 190 —
V Temperature, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 185 —
B Temperature, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Report
Z Temperature, °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Report
Effective life, hours
@ 200°C
Volatilization loss . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 90 —
Acidity increase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 100 —
Viscosity increase. . . . . . . . . . . . . . . . . . . . . . . . . . . 77 60 —
Insolubles increase . . . . . . . . . . . . . . . . . . . . . . . . . 325 225 —
@ 250°C
Volatilization loss . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 2 —
Acidity increase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6 0.5 —
Viscosity increase. . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 —
Insolubles increase . . . . . . . . . . . . . . . . . . . . . . . . . 21 20 —
(23) Catalytic oxidation:
∆ Z solidus catalytic oxidation index, °C . . . . . . . . . . . . . ** – 15 10 14
(24) Bearing cleanliness temperature index
B Temperature parameter, °C . . . . . . . . . . . . . . . . . . . . 210 Report 9
S Temperature parameter, °C . . . . . . . . . . . . . . . . . . . . 295 Report 1
( 2 ⁄3 B + 1 ⁄3 S) index, °C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 230
(25) Low temperature oxidative stability . . . . . . . . . . . . . . . . . Clear No deposition 10
..................................................................................... @ 3 mos. of insolubles
(26) Shear stability, diesel injector rig:
∆ Viscosity (kinematic) @ 100°C, % . . . . . . . . . . . . . . . . . >–1.9 ±2.0 Note: Sonic shear
..................................................................................... test substituted
Appearance of oil after test . . . . . . . . . . . . . . . . . . . . . . Pass No sludge or gum
(27) Viscosity, kinematic, high temperature:
@ 205°C, cSt (mm 2 /s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.42 1.25 — D445* 71*
(28) Viscosity stability @ – 40°C, % change . . . . . . . . . . . . . . – 1.8 — 6.0 D2532
(29) Autoignition temperature, °C . . . . . . . . . . . . . . . . . . . . . . 415 Report D2155
* Modified
** Available upon request

Air BP
Div. of BP Products North America Inc.
Parsippany, New Jersey 07054
website: www.airbp.com
MADE IN THE U.S.A.
Trademarks reg U.S. Pat & Tm. Off
BP is a trademark of BP Amoco p.l.c.
2380BRO-04/02