FUEL AND OIL
eng
41
Fuel Requirements
Use a major brand of unleaded gasoline, preferably without alcohol.
NOTICE
The use of improper fuel can cause serious damage to the engine. Damage
resulting from the use of improper fuel is considered engine misuse and is
not covered under the limited warranty. Use only the recommended fuel in
the engine.
OCTANE REQUIREMENTS (U.S./CANADA)
FUEL TYPE
MINIMUM POSTED OCTANE
Unleaded premium
1.
91 (R+M)/2
OCTANE REQUIREMENTS (OUTSIDE THE U.S./CANADA)
FUEL TYPE
MINIMUM POSTED OCTANE
Unleaded premium
2.
96 RON
USING REFORMULATED (OXYGENATED) FUELS (USA ONLY)
This type of fuel is required in certain areas of the U.S. The two types of
oxygenates used in these fuels are alcohol (Ethanol) or Ether (MTBE or ETBE).
If Ethanol is the oxygenate that is used in the gasoline in your area, refer to the
Fuel Containing Alcohol
section.
These reformulated fuels are acceptable for use in your Mercury engine.
FUEL CONTAINING ALCOHOL
If the fuel in your area contains either methanol (methyl alcohol) or ethanol
(ethyl alcohol), you should be aware of certain adverse effects that can occur.
These adverse effects are more severe with methanol. Increasing the
percentage of alcohol in the fuel can also worsen these adverse effects.
Some of these adverse effects are caused because the alcohol in the fuel can
absorb moisture from the air, resulting in a separation of the water/alcohol from
the gasoline in the fuel tank.
The fuel system components on your Mercury engine will withstand up to 10%
alcohol content in the gasoline. We do not know what percentage your boat’s
fuel system will withstand. Contact your boat manufacturer for specific
recommendations on the boats fuel system components (fuel tanks, fuel lines,
and fittings).
Fuel containing alcohol may increase:
1.
Mercury Racing does not recommend using leaded gasoline. Read the information in the Fuel Containing Alcohol
section.
2.
Mercury Racing does not recommend using leaded gasoline. Leaded gasoline is acceptable in areas where
unleaded gasoline is not available; however, exhaust passageway corrosion may occur due to the accumulation of
exhausted lead particles. Automotive fuels that contain fuel injector cleaner are recommended for added internal
cleanliness.