Fuel Requirements; Fuel Ratings; Using Reformulated (Oxygenated) Gasolines (Usa Only); Gasolines Containing Alcohol - Mercury Marine Scorpion 350 Manual Del Propietário

Sección 4 - Especificaciones

Fuel Requirements

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.

Fuel Ratings

Mercury MerCruiser engines will operate satisfactorily when using a major brand of unleaded gasoline meeting the following
specifications:
USA and Canada—having a posted pump Octane Rating of 87 (R+M)/2 minimum. Premium gasoline [92 (R+M)/2 Octane] is
also acceptable. Do not use leaded gasoline.
Outside USA and Canada—having a posted pump Octane Rating of 90 RON minimum. Premium gasoline (98 RON) 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 2 types of oxygenates used in these fuels is 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 MerCruiser engine.

Gasolines Containing Alcohol

If the gasoline 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 gasoline 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 MerCruiser 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 boat's fuel system components (fuel tanks, fuel lines, and fittings). Be aware that gasolines containing
alcohol may increase:
• Corrosion of metal parts
• Deterioration of rubber or plastic parts
• Fuel permeation through rubber fuel lines
• Difficulty starting and operating the engine
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.
Because of possible adverse effects of alcohol in gasoline, we recommend only alcohol-free gasoline when possible. If the only
fuel available contains alcohol or if you do not know whether the fuel contains alcohol, inspect for leaks and abnormalities more
frequently.
IMPORTANTE: When operating a Mercury MerCruiser engine on gasoline containing alcohol, do not store the gasoline in the
fuel tank for long periods. Whereas 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. In addition, internal corrosion may take place
during storage if alcohol has washed protective oil films from internal components.

Aceite de motor

Para ayudar a obtener el rendimiento óptimo del motor y proporcionar la máxima protección, se recomienda el uso del
siguiente aceite:
Aplicación
Todos los motores MerCruiser
Si el aceite para motor 20W-40 completamente sintético de Mercury MerCruiser no está disponible, puede usar los siguientes
lubricantes, enumerados por orden de recomendación:
1. Aceite para motor de cuatro tiempos MerCruiser 25W-40 de mezcla sintética, con clasificación NMMA FC-W de Mercury/
Quicksilver
2. Aceite para motor de cuatro tiempos MerCruiser 25W-40, con clasificación NMMA FC-W de Mercury/Quicksilver
3. Otras marcas reconocidas de aceites para motores de cuatro tiempos con clasificación NMMA FC-W
Página 34
ADVERTENCIA
!
Aceite recomendado
Aceite para motor 20W-40 completamente sintético con clasificación NMMA FC-W de Mercury MerCruiser
90-8M0062990 MAYO 2011
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