Related by context. Frequent words. (Click for all words.) 56 Flex Fuel 55 B# biodiesel [002] 55 flex fuel 55 ethanol 55 FFVs 53 alternative fuels 53 biodiesel blends 53 NGVs 53 ethanol blended 52 fuel 52 E# ethanol 52 E# [004] 52 renewable fuels 51 diesel 51 gasohol 51 corn ethanol 51 conventional internal combustion 51 hybrid powertrains 51 gasoline 51 FlexFuel 51 ethanol blends 50 CAFE standards 50 hybrids 50 E# pumps 50 biodiesel 50 BlueTec 49 gas guzzlers 49 Honda Civic GX 49 cars 49 vehicles 48 automakers 48 diesel fuel 48 gas guzzling SUV 48 zero tailpipe emissions 48 Ethanol Vehicle 48 gas guzzling SUVs 48 Ethanol 48 biofuels 48 E# blend 48 SUVs 48 diesels 47 Automakers 47 #mpg [001] 47 gaseous fuels 47 8 CYL 47 Economy CAFE 47 blender pumps 47 Bioethanol 47 gallon 47 Renewable fuels 47 gas guzzling trucks 47 soy biodiesel 47 gas guzzling vehicles 47 cleaner fuels 47 cleaner burning 46 4 cyl 46 particulate filters 46 liquefied coal 46 diesel engines 46 hybrid drivetrain 46 biofuel 46 Altima Hybrid 46 Fuel Efficient 46 ULSD 46 #.#/gallon [001] 46 Chevy Volt 46 Ford EcoBoost 46 Hybrid Vehicles 46 automobiles 46 Hybrid Cars 46 gas guzzling 46 bio fuels 46 6 CYL 45 fuel additive 45 Alternative Fuel 45 pickups vans 45 combustion engine 45 Mariner Hybrid 45 sulfur fuels 45 pickups SUVs 45 tankful 45 Fuel Efficiency 45 tailpipe emissions 45 Lithium ion 45 EVs 45 diesel powered 45 EcoBoost engine 45 nonpolluting 45 Fuel Economy 45 internal combustion engine 45 gas guzzler 45 Chevy Volts 44 compressed hydrogen 44 gasolines 44 HEVs 44 Bluetec 44 mileage 44 retool factories 44 Volt 44 avgas 44 turbocharged engines