Black plate (60,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-7707475) - 2015 - CRC - 10/9/149-60 Driving and OperatingFuels in ForeignCountriesIf planning to drive in countriesoutside the U.S. or Canada, theproper fuel might be hard to find.Check regional auto club or fuelretail brand websites for availabilityin the country where driving. Neveruse leaded gasoline, fuel containingmethanol, manganese, or any otherfuel not recommended. Costlyrepairs caused by use of improperfuel would not be covered by thevehicle warranty.Fuel AdditivesTo keep fuel systems clean, TOPTIER Detergent Gasoline isrecommended. See Fuel onpage 9-58.If TOP TIER Detergent Gasoline isnot available, one bottle of FuelSystem Treatment PLUS added tothe fuel tank at every engine oilchange can help. Fuel SystemTreatment PLUS is the onlygasoline additive recommended byGeneral Motors. It is available atyour dealer.Do not use additives with E85 orFlexFuel.E85 or FlexFuelVehicles with a yellow fuel cap canuse either unleaded gasoline or fuelcontaining up to 85% ethanol (E85).All other vehicles should use onlythe unleaded gasoline as describedin Fuel on page 9-58.The use of E85 or FlexFuel isencouraged when the vehicle isdesigned to use it. E85 or FlexFuelis made from renewable sources.To help locate fuel stations thatcarry E85 or FlexFuel, the U.S.Department of Energy has analternative fuel website. Seewww.afdc.energy.gov/afdc/locator/stations.E85 or FlexFuel should meet ASTMSpecification D 5798 or CAN/CGSB–3.512 in Canada. Do not usethe fuel if the ethanol content isgreater than 85%. Fuel mixtures thatdo not meet ASTM or CGSBspecifications can affect driveabilityand could cause the malfunctionindicator lamp to come on.The starting characteristics of E85or FlexFuel make it unsuitable foruse when temperatures fall below−18°C (0°F). Use gasoline or addgasoline to the E85 or FlexFuel.Because E85 or FlexFuel has lessenergy per liter (gallon) thangasoline, the vehicle will need to berefilled more often. See Filling theTank on page 9-61.{ CautionSome additives are notcompatible with E85 or FlexFueland can harm the vehicle's fuelsystem. Do not add anything toE85 or FlexFuel. Damage causedby additives would not be coveredby the vehicle warranty.