2014 Dodge Dart Owner Manual - Page 497

STARTING AND OPERATING 495 conditions and they would result in additional cost. Therefore, you should not have to add anything to the MMT (Methylcyclopentadienyl Manganese Tricarbonyl) fuel. is a manganese-containing metallic additive that is blended into some gasoline to increase octane. Gasoline Fuel System Cautions blended with MMT provides no performance advantage beyond gasoline of the same octane number without CAUTION! MMT. Gasoline blended with MMT reduces spark plug life and reduces emissions system performance in some Follow these guidelines to maintain your vehicle's vehicles. The manufacturer recommends that gasoline performance: without MMT be used in your vehicle. The MMT content • The use of leaded gas is prohibited by Federal law. Using leaded gasoline can impair engine perforof gasoline may not be indicated on the gasoline pump, mance and damage the emissions control system. therefore, you should ask your gasoline retailer whether the gasoline contains MMT. MMT is prohibited in Federal (Continued) and California reformulated gasoline. MMT In Gasoline Materials Added To Fuel 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 5