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-BenzmodelG-ClassderivativeG 400 d AMG Line Premium Plus 4MATIC AutoWLTP CO2kg/l1.92WLTP CO2gpkm289Litre per 100km15.03MPG (combined)18.8
makeMercedes-BenzmodelCLA Shooting Brake NewderivativeCLA 220 d Sport Executive 8G-DCTWLTP CO2kg/l2WLTP CO2gpkm136Litre per 100km6.81MPG (combined)41.5
makeFordmodelAll-New Transit Custom Double Cabderivative2.0L EcoBlue 320 Trail L1 H1 136PS FWDWLTP CO2kg/l2.07WLTP CO2gpkm194Litre per 100km9.35MPG (combined)30.2
makeFordmodelAll-New Transit Custom Double Cabderivative2.0L EcoBlue 320 Trail L2 H1 136PS FWDWLTP CO2kg/l2.08WLTP CO2gpkm195Litre per 100km9.35MPG (combined)30.2
makeMercedes-BenzmodelCLA Shooting Brake NewderivativeCLA 220 d AMG Line Premium 8G-DCTWLTP CO2kg/l2.1WLTP CO2gpkm143Litre per 100km6.81MPG (combined)41.5
makeMercedes-BenzmodelCLA Shooting Brake NewderivativeCLA 220 d AMG Line Premium Plus 8G-DCTWLTP CO2kg/l2.12WLTP CO2gpkm144Litre per 100km6.81MPG (combined)41.5
makeMercedes-BenzmodelVito Crewderivative110 CDI RWD PROGRESSIVE L1WLTP CO2kg/l2.13WLTP CO2gpkm175Litre per 100km8.21MPG (combined)34.4
makeMercedes-BenzmodelVito Crewderivative110 CDI RWD PROGRESSIVE L2WLTP CO2kg/l2.16WLTP CO2gpkm177Litre per 100km8.21MPG (combined)34.4
makeFordmodelAll-New Transit Custom Multicabderivative2.0L EcoBlue 320 Limited L1 H1 170PS FWD AutoWLTP CO2kg/l2.17WLTP CO2gpkm203Litre per 100km9.35MPG (combined)30.2
makeMercedes-BenzmodelVito Crewderivative110 CDI RWD PROGRESSIVE L3WLTP CO2kg/l2.17WLTP CO2gpkm178Litre per 100km8.21MPG (combined)34.4
Bottom 10 CO2 per litre diesel vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makeToyotamodelPROACE Crew Cab Newderivative2.0 D Icon Premium Medium 145 DIN hpWLTP CO2kg/l3.96WLTP CO2gpkm209Litre per 100km5.28MPG (combined)53.5
makeToyotamodelPROACE Crew Cab Newderivative2.0 D Icon Medium 145 DIN hpWLTP CO2kg/l3.94WLTP CO2gpkm208Litre per 100km5.28MPG (combined)53.5
makeToyotamodelPROACE Crew Cabderivative2.0 D Design Medium 120 DIN hpWLTP CO2kg/l3.83WLTP CO2gpkm202Litre per 100km5.28MPG (combined)53.5
makeToyotamodelPROACE Crew Cabderivative2.0 D Icon Medium 120 DIN hpWLTP CO2kg/l3.81WLTP CO2gpkm201Litre per 100km5.28MPG (combined)53.5
makeCitroenmodelSpaceTourer Newderivative2.0L BlueHDi 180 Max XL S&S AutoWLTP CO2kg/l3.7WLTP CO2gpkm193Litre per 100km5.21MPG (combined)54.2
makeCitroenmodelSpaceTourer Newderivative2.0L BlueHDi 180 Plus M S&S AutoWLTP CO2kg/l3.65WLTP CO2gpkm190Litre per 100km5.21MPG (combined)54.2
makeNissanmodelPrimastar Crew Vanderivative2.0 dCi 30 L2H1 Tekna 170WLTP CO2kg/l3.55WLTP CO2gpkm192Litre per 100km5.4MPG (combined)52.3
makeNissanmodelPrimastar Crew Vanderivative2.0 dCi 30 L1H1 Tekna 170WLTP CO2kg/l3.54WLTP CO2gpkm191Litre per 100km5.4MPG (combined)52.3
makeNissanmodelPrimastar Crew Vanderivative2.0 dCi 30 L1H1 Tekna 130WLTP CO2kg/l3.52WLTP CO2gpkm190Litre per 100km5.4MPG (combined)52.3
makeMercedes-BenzmodelMarco Polo NewderivativeV 300 d Sport Long 7-speed G-TronicWLTP CO2kg/l3.51WLTP CO2gpkm207Litre per 100km5.9MPG (combined)47.9

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