Cadillac 2014 ELR Owner's Manual

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Black plate (66,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -2014 - crc - 10/8/139-66 Driving and Operatingyou could damage the engine andmay void your vehicle warranty.If heavy knocking is heard whenusing gasoline rated at 91 octane orhigher, 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 and other fuelscontaining more than 15% ethanolmust be used only in FlexFuelvehicles.{ CautionDo not use fuel containingmethanol. It can corrode metalparts in the fuel system and alsodamage plastic and rubber parts.That damage would not becovered under the vehiclewarranty.Some gasolines that are notreformulated for low emissions cancontain an octane-enhancingadditive 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.Gasoline SpecificationsAt a minimum, gasoline should meetASTM specification D 4814. Somegasolines contain anoctane-enhancing additive calledmethylcyclopentadienyl manganesetricarbonyl (MMT). We recommendagainst the use of gasolinescontaining MMT. See “ProhibitedFuels" in Fuel on page 9-65.California FuelRequirementsIf the vehicle is certified to meetCalifornia Emissions Standards, it isdesigned to operate on fuels thatmeet California specifications. Seethe underhood emission controllabel. If this fuel is not available instates adopting California EmissionsStandards, the vehicle will operatesatisfactorily on fuels meetingfederal specifications, but emissioncontrol system performance mightbe affected. The malfunctionindicator lamp could turn on and thevehicle may not pass a smog-checktest. See Malfunction IndicatorLamp on page 5-18. If this occurs,return to your authorized dealer fordiagnosis. If it is determined that the