Related by context. Frequent words. (Click for all words.) 65 CO2 emissions 61 C# emissions 59 particulate matter emissions 58 particulate emissions 58 NOx emissions 58 CO ² 57 greenhouse gases GHG 57 exhaust emissions 57 nitrous oxides 57 CO2 emission 57 carbon dioxide emissions 56 pollutant emissions 56 reducing CO2 emissions 56 particulate filters 56 nitrous oxide emissions 56 CO2 56 carbon dioxide CO2 emissions 56 CO2 emitted 56 carbon dioxide emission 55 emmissions 55 #g/km CO2 [001] 55 CO2 Emissions 55 SO2 emissions 55 pollutants emitted 54 Carbon dioxide emissions 54 emissions 53 Co2 53 VOC emissions 53 nitrogen oxides NOx 53 diesel particulate filters 53 GHG emission 53 nitrogen oxide NOx 52 carbon emissions 52 NOx 52 greenhouse gas GHG emissions 52 conventional internal combustion 52 kilotonnes 52 nitrogen oxide emissions 51 smog forming emissions 51 diesel particulate filter 51 smog forming 51 greenhouse gas emissions 51 sulfur dioxide SO2 51 exhaust emission 51 CO2 emitting 51 GHG emissions 51 carbon dioxide CO2 51 GHGs 50 GHG reductions 50 aerodynamic drag 50 carbon emission 50 greenhouse emissions 50 emission 50 luminous flux 50 cleanest diesel 50 DRIVe 50 8 CYL 49 particulate matter PM 49 CO -2 49 ft. lbs 49 N2O 49 reduce carbon emissions 49 co2 49 aftertreatment 49 nitrogen oxide 49 greenhouse gasses 49 Fuel Consumption 49 lightweighting 49 efficiency 49 Nitrogen oxides 48 CO2e 48 #g/km [001] 48 Lithium Ion batteries 48 BlueEFFICIENCY 48 productivities 48 carbon emission reductions 48 B# biodiesel [002] 48 Emissions 48 MPGe 48 BlueTec 48 carbon emitted 48 hybrid powertrains 48 6 CYL 48 BEVs 48 unsprung weight 48 greenhouse emission 48 BLUETEC 48 carbon dioxide 48 tailpipe emissions 48 V6 diesel 48 Selective Catalytic Reduction SCR 47 gas recirculation EGR 47 backpressure 47 HEVs 47 trans fatty acid 47 NO2 47 gas recirculation 47 particulate filter 47 sulfur oxide 47 HCFC 47 H#O#