Kg CO2 per litre of diesel vehicles

Diesel produces 2.6391 kgs of CO2 per litre burnt. The precise figures depend on the quality of the fuel. Since fuel weighs less than a kilogram per litre, it is interesting to see how the weight of emissions is multiplied by the addition of oxygen. The tables below show how the official test figures for CO2 emissions and combined MPG can be equated to see how individual vehicles perform in terms of CO2 per litre. Some cars appear to do better than the standard chemistry would suggest, whereas others do worse. The official tests measure exhaust gases only and then calculate the fuel consumption. So these figures show how far off the recording of test results can be due to errors, rounding differences, and the leeway of around 4% given to manufacturers to decide on which fuel consumption figure to use.

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Top 10 CO2 per litre diesel vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makeMercedes-BenzmodelCLA Shooting BrakederivativeCLA 220 d AMG Line 8G-DCTWLTP CO2kg/l1.98WLTP CO2gpkm135Litre per 100km6.81MPG (combined)41.5
makeMercedes-BenzmodelCLA Shooting BrakederivativeCLA 220 d AMG Line Premium Plus 8G-DCTWLTP CO2kg/l2WLTP CO2gpkm136Litre per 100km6.81MPG (combined)41.5
makeKiamodelSportagederivative1.6 CRDi 2 134hp 48V DCT ISGWLTP CO2kg/l2.11WLTP CO2gpkm141Litre per 100km6.68MPG (combined)42.3
makeCitroenmodelC4 NewderivativeBlueHDi 130 Shine S&S EAT8WLTP CO2kg/l2.15WLTP CO2gpkm119Litre per 100km5.53MPG (combined)51.1
makeCitroenmodelC4 NewderivativeBlueHDi 130 Sense Plus EAT8WLTP CO2kg/l2.17WLTP CO2gpkm120Litre per 100km5.53MPG (combined)51.1
makeBMWmodel7 Seriesderivative730d (MHT) M Sport AutoWLTP CO2kg/l2.18WLTP CO2gpkm144Litre per 100km6.6MPG (combined)42.8
makeVolkswagenmodelCaddy Maxi Kombiderivative2.0 TDI 102PS DSGWLTP CO2kg/l2.2WLTP CO2gpkm139Litre per 100km6.31MPG (combined)44.8
makeBMWmodel7 Seriesderivative730Ld (MHT) M Sport AutoWLTP CO2kg/l2.21WLTP CO2gpkm146Litre per 100km6.6MPG (combined)42.8
makeBMWmodel7 Seriesderivative730d (MHT) xDrive M Sport AutoWLTP CO2kg/l2.22WLTP CO2gpkm155Litre per 100km6.99MPG (combined)40.4
makeBMWmodel4 Series Coupé Newderivative420d (MHT) M Sport Pro Edition Sport-AutoWLTP CO2kg/l2.23WLTP CO2gpkm127Litre per 100km5.7MPG (combined)49.6
Bottom 10 CO2 per litre diesel vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makeMercedes-BenzmodelV-ClassderivativeV 300 d AMG Line Marco Polo Long 7-speed G-TronicWLTP CO2kg/l3.59WLTP CO2gpkm212Litre per 100km5.9MPG (combined)47.9
makeMercedes-BenzmodelV-ClassderivativeV 220 d AMG Line Marco Polo Long 7-speed G-TronicWLTP CO2kg/l3.53WLTP CO2gpkm212Litre per 100km6MPG (combined)47.1
makeMercedes-BenzmodelV-ClassderivativeV 300 d AMG Line Marco Polo Horizon Long 7-speed G-TronicWLTP CO2kg/l3.53WLTP CO2gpkm208Litre per 100km5.9MPG (combined)47.9
makeMercedes-BenzmodelV-ClassderivativeV 300 d Sport Marco Polo Long 7-speed G-TronicWLTP CO2kg/l3.51WLTP CO2gpkm207Litre per 100km5.9MPG (combined)47.9
makeMercedes-BenzmodelV-ClassderivativeV 300 d Exclusive Long 7-speed G-TronicWLTP CO2kg/l3.49WLTP CO2gpkm206Litre per 100km5.9MPG (combined)47.9
makeMercedes-BenzmodelV-ClassderivativeV 300 d AMG Line Long 7-speed G-TronicWLTP CO2kg/l3.48WLTP CO2gpkm205Litre per 100km5.9MPG (combined)47.9
makeMercedes-BenzmodelV-ClassderivativeV 220 d AMG Line Marco Polo Horizon Long 7-speed G-TronicWLTP CO2kg/l3.47WLTP CO2gpkm208Litre per 100km6MPG (combined)47.1
makeMercedes-BenzmodelV-ClassderivativeV 220 d Sport Marco Polo Long 7-speed G-TronicWLTP CO2kg/l3.45WLTP CO2gpkm207Litre per 100km6MPG (combined)47.1
makeMercedes-BenzmodelGLE NewderivativeGLE 300 d AMG Line Executive 4MATIC 9G-TRONIC (7 seats)WLTP CO2kg/l3.44WLTP CO2gpkm210Litre per 100km6.1MPG (combined)46.3
makeMercedes-BenzmodelV-ClassderivativeV 300 d Sport Marco Polo Horizon Long 7-speed G-TronicWLTP CO2kg/l3.44WLTP CO2gpkm203Litre per 100km5.9MPG (combined)47.9

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