Black plate (57,1)Cadillac Escalade/Escalade ESV Owner Manual (GMNA-Localizing-MidEast-6963932) - 2014 - crc - 5/21/13Driving and Operating 9-57heard. If this occurs, use a gasolinerated at 95 RON or higher as soonas possible. Otherwise, the enginecould be damaged. If heavyknocking is heard when usinggasoline rated at 95 RON or higher,the engine needs service.Use of Seasonal FuelsUse summer and winter fuels in theappropriate season. Driving orstarting could be affected if theincorrect fuel is used. Drive thevehicle with the engine running untilthe fuel is a half tank or less, thenrefuel with the current seasonal fuel.Prohibited FuelsGasolines containing oxygenates,such as ethers and ethanol, as wellas reformulated gasolines areavailable in some cities. If thesegasolines comply with thepreviously described specification,then they are acceptable to use.However, E85 (85% ethanol) andother fuels containing more than15% ethanol must be used only inFlexFuel vehicles.Notice: Do not use fuelcontaining methanol. It cancorrode metal parts in the fuelsystem and also damage plasticand rubber parts. That damagewould not be covered under thevehicle warranty.Some gasolines thatare not reformulated for lowemissions can contain anoctane-enhancing additive calledmethylcyclopentadienyl manganesetricarbonyl (MMT). Do not usegasolines with MMT as they canreduce spark plug life and affectemission control systemperformance. The malfunctionindicator lamp may turn on. If thisoccurs, see your dealer for service.Fuel AdditivesGasoline should contain detergentadditives that help prevent engineand fuel system deposits fromforming. Clean fuel injectors andintake valves will allow the emissioncontrol system to work properly.
