2012 Jeep Grand Cherokee Owner Manual SRT - Page 475

STARTING AND OPERATING 473 To fix a Non-FFV vehicle inadvertently fueled once with vehicles. The manufacturer recommends that gasoline without MMT be used in your vehicle. The MMT content E-85 perform the following: of gasoline may not be indicated on the gasoline pump, • drain the fuel tank (see your authorized dealer) therefore, you should ask your gasoline retailer whether the gasoline contains MMT. It is even more important to • change the engine oil and oil filter look for gasoline without MMT in Canada, because MMT • disconnect and reconnect the battery to reset the can be used at levels higher than those allowed in the engine controller memory United States. MMT is prohibited in Federal and CaliforMore extensive repairs will be required for prolonged nia reformulated gasoline. exposure to E-85 fuel. Materials Added To Fuel MMT In Gasoline All gasoline sold in the United States is required to MMT is a manganese-containing metallic additive that is contain effective detergent additives. Use of additional blended into some gasoline to increase octane. Gasoline detergents or other additives is not needed under normal blended with MMT provides no performance advantage conditions and they would result in additional cost. beyond gasoline of the same octane number without Therefore, you should not have to add anything to the MMT. Gasoline blended with MMT reduces spark plug fuel. life and reduces emissions system performance in some 5