358
STARTING AND OPERATING
blendedwithMMTprovidesnoperformanceadvantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emission system performance in some
vehicles. The manufacturer recommends that gasoline
withoutMMTbeusedinyourvehicle.TheMMTcontent
ofgasolinemaynotbeindicatedonthegasolinepump,
therefore, you should ask your gasoline retailer if the
gasolinecontainsMMT.
conditionsandwouldresultinadditionalcost.Therefore,
youshouldnothavetoaddanythingtothefuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•
•
The use of leaded gas is prohibited by Federal law.
Usingleadedgasolinecanimpairengineperformance
anddamagetheemissioncontrolsystem.
It is even more important to look for gasoline without
MMT in Canada, because MMT can be used at levels
higherthanthoseallowedintheUnitedStates.
An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
somelightsmoke,yourenginemaybeoutoftuneor
malfunctioning and may require immediate service.
Contactyourauthorizeddealerforserviceassistance.
MMT is prohibited in Federal and California reformu-
latedgasoline.
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergentsorotheradditivesisnotneededundernormal
| Categories | Jeep Grand Cherokee Manuals, Jeep Manuals |
|---|---|
| Model Year | 2009 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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