Related by context. Frequent words. (Click for all words.) 52 BlueTEC 50 BLUETEC 50 hydrogen internal combustion 50 Dodge Sprinter 49 BlueEFFICIENCY 49 PHEV 48 V6 diesel 48 Ford EcoBoost 48 V6 petrol 48 FFVs 47 EcoBoost engine 47 BlueTec 47 Lincoln MKZ Hybrid 47 #.# liter Pentastar 47 Silao Mexico 47 Bluetec 47 turbocharged engines 46 FlexFuel 46 autogas 46 hybrid powertrains 46 EcoBoost engines 46 #.#L V8 46 smart fortwo electric 45 EcoBoost 45 Turbocharged 45 cleanest diesel 45 Hybrid Synergy Drive 45 FCVs 45 Sonata Hybrid 45 Selective Catalytic Reduction SCR 44 Transit Connect Electric 44 Cummins Westport 44 Fusion sedan 44 Hybrid Vehicle 44 4 cyl 43 Flex Fuel 43 electric drivetrain 43 conventional internal combustion 43 electric powertrain 43 NGVs 42 Prius Plug 42 4Matic 42 hybrid powertrain 42 turbo diesel 42 diesel engined 42 hybrid drivetrain 42 GMC Yukon XL 42 diesels 42 diesel powered 42 turbo diesel engine 42 Forte Koup 42 spark ignition 42 Fiesta subcompact 42 AuraGen 41 B# biodiesel [002] 41 flex fuel 41 Hybrid Vehicles 41 #.#L engine 41 diesel engine 41 Wheego 41 Lexus RX#h 41 Audi A3 TDI 41 cylinder deactivation 41 E# ethanol 40 biobutanol 40 Terrabon 40 gaseous fuels 40 pickups vans 40 ULSD 40 low sulfur diesel 40 reciprocating engines 40 TDI diesel 40 HEVs 40 Chevrolet Equinox crossover 40 Ford Focus 40 gaseous hydrogen 40 BioPower 40 Honda Civic GX 40 AdBlue 40 Cummins Westport Inc. 40 BlueMotion 40 compressed hydrogen 40 O2Diesel 40 turbodiesel 40 Ford Escape Hybrid 39 LCVs 39 Chevrolet Volt 39 PHEVs 39 diesel 39 Escape hybrid 39 SUVs minivans 39 Project Driveway 39 compressed natural 39 Fusion Hybrid 39 liter turbodiesel 39 www.fueleconomy.gov 39 Mariner Hybrid 39 Mercury Mariner Hybrid 39 PEVs 39 soy biodiesel 39 Mercedes Benz Sprinter