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UPDATEDSEPTEMBER25,2012icontentsUsingtheFuelEconomyGuide/i•UnderstandingtheGuideListings/1•WhySomeVehiclesAreNotListed/1•VehicleClassesUsedinThisGuide/2•TaxIncentivesandDisincentives/2•WhyConsiderFuelEconomy?/2•FuelingOptions/2•FuelEconomyandAnnualFuelCostRangesforVehicleClasses/3•ModelYear2012FuelEconomyLeaders/4•2012ModelYearVehicles/5•DieselVehicles/26•CompressedNaturalGasVehicles/26•ElectricVehicles/27•HybridElectricVehicles/28•Plug-inHybridElectricVehicles/30•EthanolFlexibleFuelVehicles/31•FuelCellVehicles/36•Index/37•USINGTHEFUELECONOMYGUIDETheU.S.EnvironmentalProtectionAgency(EPA)andU.S.DepartmentofEnergy(DOE)producetheFuelEconomyGuidetohelpcarbuyerschoosethemostfuel-efficientvehiclethatmeetstheirneeds.TheGuideispublishedinprintandontheWebat’sCleanCitiesTechnicalResponseServiceat1-800-254-6735ormailyourrequestto:NREL-FuelEconomyGuide,1617ColeBoulevard,Golden,CO80401.FuelEconomyEstimatesMostvehiclesinthisGuide(otherthanplug-inhybrids)havethreefueleconomyestimates:Acityestimatethatrepresentsurbandriving,inwhichavehicleisstartedinthemorning(afterbeingparkedallnight)anddriveninstop-and-gotraffic•Ahighwayestimatethatrepresentsamixtureofruralandinterstatehighwaydrivinginawarmed-upvehicle,typicaloflongertripsinfree-flowingtraffic•Acombinedestimatethatrepresentsacombinationofcitydriving(55%)andhighwaydriving(45%)•Estimatesforallvehiclesarebasedonlaboratorytestingunderstandardizedconditionstoallowforfaircomparisons.Flexible-fuelvehicles(FFVs),whichcanusegasolineandE85,haveestimatesforbothfuels.Plug-inhybridelectricvehicles(PHEVs)haveestimatesforgasoline-onlyandelectric-onlyoperationandarediscussedinmoredetailonpage27.Foranswerstofrequentlyaskedquestionsaboutfueleconomyestimates,visit(55%undercitydrivingconditionsand45%underhighwayconditions)andthatfuelcosts$3.83/gallonforregularunleadedgasolineand$4.11/gallonforpremium.Cost-per-gallonassumptionsforvehiclesthatuseotherfueltypesarediscussedatthebeginningofthosevehiclesections.ThefuelcostsweredeterminedinadvancetoallowtimeforprintingfueleconomylabelsandtheGuide,andmaynotreflectcurrentfuelprices.Visit’sfueleconomywillalmostcertainlyvaryfromEPA’sestimate.Fueleconomyisnotafixednumber;itvariessignificantlybasedonwhereyoudrive,howyoudrive,andotherfactors.Thus,it’sfueleconomy:Aggressivedriving(hardaccelerationandbraking)•Excessiveidling,accelerating,andbrakinginstop-and-gotraffic•Coldweather(enginesaremoreefficientwhenwarmedup)•Drivingwithaheavyloadorwiththeairconditionerrunning•Improperlytunedengineorunder-inflatedtires•Useofremotestarters•Inaddition,smallvariationsinvehiclemanufacturingcancausefueleconomyvariationsinthesamemakeandmodel,andsomevehiclesdon’tattainmaximumfueleconomyuntiltheyarebrokenin(around3,000–5,000miles).So,pleaserememberthattheEPAratingsareausefultoolforcomparingvehicleswhencarbuying,buttheymaynotaccuratelypredicttheMPGyouwillget.Thisisalsotrueforannualfuelcostestimates.Formoreinformationonfueleconomyratingsandfactorsthataffectfueleconomy,visit’llfindtheFuelEconomyGuideeasytouse!Fueleconomyandannualfuelcostdataareorganizedbyvehicleclass(seepage2foralistofclasses).Withineachclass,vehiclesarelistedalphabeticallybymanufacturerandmodel.Vehiclemodelswithdifferentfeatures,suchasenginesizeortransmissiontype,arelistedasdifferentvehicles—engineandtransmissionattributesareshowninthefirstcolumnunderthemodelname.Additionalattributesneededtodistinguishamongvehicles(e.g.,fueltype,suggestedfuelgrade)arelistedinthe“Notes”column.Alegendforabbreviationsisprovidedonpage5.APintheNotescolumnindicatesthatthemanufacturerrecommendsthatthevehiclebefueledwithpremium-gradegasoline,andaPRindicatesthatthemanufacturerrequirespremium.Thehigherpriceofpremiumfuelisreflectedintheannualfuelcostforthesevehicles.Themostfuel-efficientvehiclesineachclassandalternativefuelvehiclesareindicatedwithspecialmarkings(seediagrambelow).Vehiclesthatcanusemorethanonekindoffuelhaveanentryforeachfueltype.InteriorpassengerandcargovolumesarelocatedintheindexatthebackoftheGuide.WHYSOMEVEHICLESARENOTLISTEDFueleconomyregulationscurrentlydonotapplytoSportutilityvehicles(SUVs)andpassengervanswithagrossvehicleweightrating(GVWR)ofmorethan10,000pounds—GVWRisthevehicleweightpluscarryingcapacity•OthervehicleswithaGVWRof8,500poundsormoreoracurbweightover6,000pounds•Therefore,thosevehiclesarenottested,andfueleconomylabelsarenotpostedontheirwindows.Also,forsomevehicles,fueleconomyinformationisnotava
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本文标题：美国能源部_汽车燃油经济性指导XXXX版
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