Fuel Recommendations - Mercury 200 Verado FourStroke Operation, Maintenance & Warranty Manual

FUEL AND OIL

Fuel Recommendations

IMPORTANT: Use of improper gasoline can damage your engine. Engine
damage resulting from the use of improper gasoline is considered misuse
of the engine, and damage caused thereby will not be covered under the
limited warranty.
Mercury Marine engines will operate satisfactorily when using a major brand of
unleaded gasoline meeting the following specifications:
MODELS 350, 350 PRO, 400R
USA and Canada ‑ Having a posted pump Octane Rating of 91 (R+M)/2
Octane is required for best performance. Having a posted pump Octane Rating
of 89 (R+M)/2 minimum is acceptable, however, performance losses may
occur. Do not use leaded gasoline.
Outside USA and Canada ‑ Having a posted pump Octane Rating of 95 RON
is required for best performance. Having a posted pump Octane Rating of 93
RON minimum is acceptable, however, performance losses may occur. If
unleaded gasoline is not available, use a major brand of leaded gasoline.
MODELS 250 PRO, 300 PRO, 300
USA and Canada ‑ Having a posted pump Octane Rating of 91 (R+M)/2
Octane is required for best performance. Having a posted pump Octane Rating
of 89 (R+M)/2 minimum is acceptable, however, performance losses may
occur. Do not use leaded gasoline.
Outside USA and Canada ‑ Having a posted pump Octane Rating of 95 RON
is required for best performance. Having a posted pump Octane Rating of 93
RON minimum is acceptable, however, performance losses may occur. If
unleaded gasoline is not available, use a major brand of leaded gasoline.
MODELS 200 PRO, 225 AND 250
USA and Canada ‑ Having a posted pump Octane Rating of 87 (R+M)/2 is
acceptable. Premium gasoline is also acceptable. Do not use leaded gasoline.
Outside USA and Canada ‑ Having a posted pump Octane Rating of 91 RON
is acceptable. Premium gasoline is also acceptable. If unleaded gasoline is not
available, use a major brand of leaded gasoline.
USING REFORMULATED (OXYGENATED) GASOLINES (USA ONLY)
This type of gasoline is required in certain areas of the USA. 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
Gasolines Containing Alcohol.
These reformulated gasolines are acceptable for use in your Mercury Marine
engine.
GASOLINES CONTAINING ALCOHOL
IMPORTANT: Do not use fuels that contain more than 10% alcohol. E15 and
E85 fuels should not be used with this engine.
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