2013 Dodge Charger Owner Manual SRT - Page 456

454 STARTING AND OPERATING • disconnect and reconnect the battery to reset the therefore, you should ask your gasoline retailer whether the gasoline contains MMT. It is even more important to engine controller memory look for gasoline without MMT in Canada, because MMT More extensive repairs will be required for prolonged can be used at levels higher than those allowed in the exposure to E-85 fuel. United States. MMT is prohibited in Federal and CaliforMMT In Gasoline nia reformulated gasoline. 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, 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 conditions and they would result in additional cost. Therefore, you should not have to add anything to the fuel.