Related by context. Frequent words. (Click for all words.) 72 E# ethanol 65 ethanol blends 62 flex fuel 60 biodiesel blends 60 ethanol blended 60 Flex Fuel 57 FFVs 53 E# [004] 51 gasohol 51 compressed natural 49 ethanol 47 soy biodiesel 47 alternative fuels 46 biodiesel 45 cleaner burning 44 bio diesel 44 bio ethanol 44 biobutanol 44 renewable fuels 44 octane gasoline 43 FFV 43 diesel powered 42 diesel engines 42 unleaded fuel 41 Compressed Natural Gas 41 octane 41 diesels 41 Ethanol 41 mpg 40 cleaner fuels 40 hybrids 40 oxygenate 40 HEVs 40 corn ethanol 40 PHEV 40 diesel 40 G OIL 40 biofuel 39 turbo diesel 39 premium unleaded 39 hydrogen powered 39 internal combustion engines 39 liter turbodiesel 39 Alternative Fuels 39 city/# highway 39 low sulfur diesel 39 Bio Diesel 39 ULSD 39 EcoBoost engine 39 Fuel Efficiency 39 Renewable Fuels 39 butanol 38 methyl tertiary butyl ether 38 Fuel Economy 38 PHEVs 38 MMgy 38 EVs 38 fuel additive 38 tailpipe emissions 38 bioethanol 38 hydrogen fueling 38 CNG 38 biobased products 38 naturally aspirated 38 sugarcane ethanol 38 B5 38 Alternative Fuel 37 Fusion Hybrid 37 Clean Fuels 37 electric powertrain 37 cellulosic ethanol 37 ethyl alcohol 37 turbodiesel 37 unleaded 37 AdBlue 37 regular unleaded 37 liter 37 hydrogen fuel 36 hydrogen refueling 36 biomethane 36 nonpolluting 36 biofuels 36 BLUETEC 36 PZEV 36 Renewable Fuel 36 bio fuels 36 reformulated gasoline 36 hydrogen 36 hybrid electric 36 Renewable Fuels Standard 36 diesel fuel 36 speed automatic transmissions 36 Hybrids 36 #.#L engine 36 Biodiesel 35 diesel engine 35 internal combustion engine 35 liquid propane 35 Jetta TDI 35 hybrid propulsion 35 combustion engine