fuel injectors and intake valves. Others can build up deposits in combustion chambers and may lead to intake valves sticking. These lower levels of additives can have a negative impact on engine performance and vehicle responsiveness.
For a current list of gasoline retailers supplying TOP Tier gaso- line, go to www.toptiergas.com and click on RETAILERS.
Damage to the engine by use of
Fuels that are blended to contain methanol or wood alcohol should not be used. These fuels can corrode metal parts in the fuel system and engine. Fuels that contain methanol will damage the engine. Damage caused by the use of unapproved fuels is not covered by warranty.
When the Boat Is Not Used for a While
Indmar recommends the regular use of
If the boat has not been used for more than thirty (30) days and fuel remains in the tank (even stabilized fuel), the engine may run poorly until the “old” fuel is used up. The manufacturer will not pay for repairs to components that are inoperable or dam- aged from old and/or poor quality fuel, as this is not covered under the engine warranty.
Extended storage with fuel in the system can affect the fuel’s stability and may require system inspection and fuel filter replacement when the unit is placed back into service.
Using Oxygenated Fuels or
Fuels with Alcohol
MTBE (methyl tertiary butyl ether) is an oxygenate and octane enhancer. This compound may be blended with fuel.
Fuel that is no more than fifteen percent (15%) MTBE is acceptable for use in the Indmar engine.
Ethyl alcohol, ethanol or grain alcohol is acceptable as long as it is a blend and the blended fuel contains no more than ten percent (10%) ethanol.
Fuels Outside the
United States and Canada
If the
Volkswagen
Diesel-Power Engines
See the fuel restrictions and information provided in the Volk- swagen engine manual. Note that the Volkswagen
When Fuel Runs Out or
Too Low for Proper Operation
MasterCraft and Volkswagen strongly recommend that the fuel level never be allowed to get so low as to introduce air into the fuel line. This can cause not only “stumbling” in the engine’s performance, but can potentially cause damage to the system and/or engine. It can also be very challenging to get the engine to
However, such a situation can occur, and in those instances, if the operator is not able to take the boat to an authorized Master- Craft dealer to have the system primed and the engine
MasterCraft 2009 Owner’s Manual - Page