Related by context. Frequent words. (Click for all words.) 60 Average Fuel 60 CAFE standards 57 Renewable Fuels Standard 56 tailpipe standards 52 mpg 50 Fuel Economy 49 tailpipe emissions 49 RFS2 48 Fuel Efficiency 48 fleetwide 47 pickups SUVs 45 brake override systems 45 heat trapping emissions 44 SUVs pickups 44 technologically feasible 44 curbing greenhouse gases 44 preindustrial levels 43 ZEV 43 nitrogen oxide emissions 43 renewable fuels 43 CAFE 43 Automobile Manufacturers 43 Motor Vehicle Safety 43 liquefied coal 43 Chief Executive Alan Mulally 43 Ustian 43 emission norms 43 kpl 42 exhaust emission 42 GHG emission 42 Renewable Fuel 42 automakers 42 Automakers 42 emission reductions 41 6 CYL 41 carbon dioxide emissions 41 Bharat Stage 41 ignition interlock devices 41 analyst George Pipas 41 mercury emissions 41 8 CYL 41 particulate filters 41 #.#bcm [003] 41 Ford Motor Co FN 41 ACEA 41 ethanol blends 41 Renewable Portfolio Standard 41 Dingell 41 global warming gases 41 GHG reduction 41 emission reduction 41 Russ Feingold D Wis 40 nitrogen oxide 40 automotive drivetrain 40 AMT patch 40 cleaner fuels 40 Waxman Markey bill 40 smog forming emissions 40 #GW [002] 40 curbing greenhouse gas 40 Basel III rules 40 NHTSA 40 CEO Alan Mulally 40 regulate greenhouse gases 40 g km 40 Barbara Boxer D Calif 40 mpg city/# mpg 40 Escape hybrid 40 EcoBoost engines 40 Jim DeMint RS.C. 40 Renewable Electricity 39 emissions 39 Kyoto Protocol expires 39 regulating greenhouse gases 39 By Julian Pecquet 39 heat trapping gases 39 Chevrolet Volt plug 39 #mpg [001] 39 NOx emissions 39 brake override system 39 greenhouse gas emission reductions 39 low sulfur diesel 39 reduce greenhouse gas 39 carmakers 39 reduce carbon emissions 39 additive MTBE 39 Clean Water Act 39 Chris Ceraso 39 Mariner Hybrid 39 PZEV 39 halving extreme 39 CARB 39 Prison Rape Elimination 39 Kyoto pact 39 FFVs 39 phaseout 39 Dave McCurdy 38 heat trapping carbon dioxide 38 EPA 38 reducing carbon emissions 38 Mark Truby