Black plate (57,1)Cadillac SRX Owner Manual - 2013 - 1st crc - 7/2/12Driving and Operating 9-57Vehicles that have a yellow fuel capcan use either unleaded gasoline orethanol fuel containing up to 85%ethanol (E85). See Fuel E85 (85%Ethanol) on page 9‑59. For all othervehicles, use only the unleadedgasoline described underRecommended Fuel on page 9‑57.Recommended FuelUse regular unleaded gasoline witha posted octane rating of 87 orhigher. If the octane rating is lessthan 87, an audible knocking noise,commonly referred to as sparkknock, might be heard when driving.If this occurs, use a gasoline ratedat 87 octane or higher as soon aspossible. If heavy knocking is heardwhen using gasoline rated at87 octane or higher, the engineneeds 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 Fuel Additiveson page 9‑58 for additionalinformation.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 might fail a smog‐check test.See Malfunction Indicator Lamp onpage 5‑17. If this occurs, return toyour authorized dealer for diagnosis.If it is determined that the conditionis caused by the type of fuel used,repairs might not be covered by thevehicle warranty.Fuels in ForeignCountriesNever use leaded gasoline or anyother fuel not recommended in theprevious text on fuel. Costly repairscaused by use of improper fuelwould not be covered by the vehiclewarranty.
