Related by context. Frequent words. (Click for all words.) 42 CAFE standards 41 trucks 40 Balqon Corporation 40 LCVs 39 NGVs 38 diesel engines 38 automobiles 38 hybrid electric 37 hybrid powertrains 37 emission 37 pollutant 37 Sinotruk 37 roadways 37 pollutants emitted 37 particulate filters 37 Beiqi Foton Motor 37 diesel exhaust 37 tailpipe emissions 37 exhaust emission 37 zero emission 36 air pollution 36 UTVs 36 pollution 36 GHG emission 36 Odyne 36 cleaner fuels 36 brake override systems 36 tailpipe standards 36 smog forming emissions 36 speed limiters 36 electric powertrains 36 hybrid 35 diesel engined 35 alternative fuels 35 collision avoidance systems 35 emissions 35 ZEV 35 greenhouse gas emission 35 NEVs 35 Compressed Natural Gas 35 Scania AB 35 V2V 35 Bluetec 35 diesels 35 trucking fleets 34 diesel powered 34 motorized vehicles 34 emission norms 34 nitrogen oxide emissions 34 nuisances 34 Volvo Powertrain 34 highways 34 Teekay Offshore Partners 34 haulers 34 largest truckmaker 34 Bharat Stage 34 fleetwide average 34 particulate matter PM 34 fix accelerator pedals 34 renewable fuels 34 GVW 33 intermodal rail 33 confusing patchwork 33 FFVs 33 automotive drivetrain 33 oversized loads 33 junked cars 33 ZENN 33 inter modal 33 technologically feasible 33 intermodal freight 33 diesel 33 diesel particulate filters 33 BLUETEC 33 leaded petrol 33 cleaner greener 33 Silao Mexico 33 Yellow Roadway 33 nonpolluting 33 BlueTec 33 LDW 33 cleaner burning 33 Ustian 33 stormwater pollution 33 Stronach Trust 33 freight haulers 33 vehicles 33 hydrogen powered 33 greenhouse gas emissions 33 Carbon dioxide emissions 33 Clean Air 33 Nursick 33 particulate matter emissions 33 Cummins Westport 33 Evolution Fuels 32 Volvo AB 32 AFS Trinity 32 CARB 32 diesel engine 32 Improvised explosive devices 32 FMCSA