Finke Aviaticon - Germany Motor Oil - Finke Oil Team

UNIVERSAL OILS (STOU AND UTTO)
Many tractors or building machines with power shift
transmission and older tractors have a common
transmission oil circuit, rear axle and hydraulic
system in which wet multi-plate clutches operate in
an oil bath. In this kind of machines, a universal oil
(Super Tractor Oil Universal, STOU) that is able to
fulfil the requirements of axle and transmission oils
(API GL4), as well as engine and hydraulic oils, is used.
STOU oils have been specifically designed for agriculture
so as to avoid mix-ups of different varieties.
Precisely for the agricultural sector, a distinction
must be made:
UTTO – UNIVERSAL TRACTOR
TRANSMISSION OIL
This oil is suitable for hydraulic systems, manual gearboxes,
wet multi-plate clutches (power shift/brakes)
and in part also for final drives.
SUPER TRACTOR OIL UNIVERSAL
This universal oil is suitable for engines, hydraulic
systems, manual gearboxes, and partly also for final
drives. The new requirements of emission standards
often call for special engine oils which are more suitable
than traditional STOU oils; this way, planetary gears
can receive a special GL-5 oil instead of STOU oil.
Manufacturer approvals must in any case be always
observed because, if these universal oils are improperly
used, problems such as rattling brakes may
quickly arise.
STOU oils are ideally suited for single-variety vehicle
fleets such as John Deere tractors.
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