899883192 - Valiant

Section 4 - Specifications
• Corrosion of metal parts
• Deterioration of rubber or plastic parts
• Fuel permeation through the rubber fuel lines
• Starting and operating difficulties
! WARNING
Fuel leakage is a fire or explosion hazard, which can cause serious injury or death.
Periodically inspect all fuel system components for leaks, softening, hardening, swelling,
or corrosion, particularly after storage. Any sign of leakage or deterioration requires
replacement before further engine operation.
IMPORTANT: If you use gasoline that contains or might contain alcohol, you must increase
the frequency of inspection for leaks and abnormalities.
IMPORTANT: When operating a Mercury MerCruiser engine on gasoline containing
alcohol, do not store the gasoline in the fuel tank for long periods. Cars normally consume
alcohol‐blend fuels before they can absorb enough moisture to cause trouble, boats often
sit idle long enough for phase separation to take place. Internal corrosion may take place
during storage if alcohol has washed protective oil films from internal components.
Engine Oil
For optimum engine performance and maximum protection, use the following oil:
Application
All MerCruiser engines
Recommended Oil
Mercury MerCruiser Full‐Synthetic Engine Oil, 20W‐40, NMMA FC‐W rated
IMPORTANT: Lubrication requirements for catalyzed engines differ from the requirements
for non‐catalyzed engines. Some marine‐grade lubricants contain high levels of
phosphorus, which can damage the catalyst system on MerCruiser engines. Although
these high‐phosphorus lubricants may allow acceptable engine performance, exposure
over time will damage the catalyst. Catalysts damaged by lubricants containing high levels
of phosphorus may not be covered by the MerCruiser Limited Warranty.
If Mercury MerCruiser Full‐Synthetic, 20W‐40 oil is unavailable, use the following
lubricants, listed in order of recommendation. If you are servicing a catalyst engine, use
these for short periods of time only.
1. Mercury/Quicksilver 25W‐40 Synthetic Blend, NMMA FC‐W–rated 4‐cycle MerCruiser
oil
2. Mercury/Quicksilver 25W‐40, NMMA FC‐W–rated 4‐cycle MerCruiser oil
3. Other recognized brands of NMMA FC‐W–rated 4‐cycle oils
4. A good‐grade, straight‐weight detergent automotive oil according to the last row of the
operating chart below.
90-899883192 NOVEMBER 2008 Page 59