Mmt In Gasoline; Materials Added To Fuel; Fuel System Cautions - Dodge CHARGER 2015 Owner's Manual

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462 STARTING AND OPERATING

MMT In Gasoline

Methylcyclopentadienyl Manganese Tricarbonyl (MMT)

is a manganese-containing metallic additive that is

blended into some gasoline to increase octane. Gasoline

blended with MMT provides no performance advantage

beyond gasoline of the same octane number without

MMT. Gasoline blended with MMT reduces spark plug

life and reduces emissions system performance in some

vehicles. The manufacturer recommends that gasoline

without MMT be used in your vehicle. The MMT content

of gasoline may not be indicated on the gasoline pump,

therefore, you should ask your gasoline retailer whether

the gasoline contains MMT. MMT is prohibited in Federal

and California reformulated gasoline.

All gasoline sold in the United States is required to

contain effective detergent additives. Use of additional

detergents or other additives is not needed under normal

conditions and they would result in additional cost.

Therefore, you should not have to add anything to the

Follow these guidelines to maintain your vehicle's

performance:

• The use of leaded gasoline is prohibited by Federal

law. Using leaded gasoline can impair engine per-

formance and damage the emissions control sys-

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