Kg CO2 per litre of petrol vehicles

Petrol produces 2.3035 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 petrol vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makeRolls-RoycemodelPhantomderivative6.75 V12 AutoWLTP CO2kg/l1.75WLTP CO2gpkm341Litre per 100km19.48MPG (combined)14.5
makeMercedes-BenzmodelE-Class Estate NewderivativeE 53 AMG Night Edition Premium Plus 4MATIC SPEEDSHIFT TCTWLTP CO2kg/l1.77WLTP CO2gpkm219Litre per 100km12.39MPG (combined)22.8
makeMercedes-BenzmodelE-Class Saloon NewderivativeE 53 AMG Night Edition Premium Plus 4MATIC+ SPEEDSHIFT TCTWLTP CO2kg/l1.77WLTP CO2gpkm215Litre per 100km12.18MPG (combined)23.2
makeCitroenmodelC4 NewderivativePureTech 130 Shine S&SWLTP CO2kg/l1.85WLTP CO2gpkm120Litre per 100km6.48MPG (combined)43.6
makeCitroenmodelC4 NewderivativePureTech 130 Shine S&S EAT8WLTP CO2kg/l1.87WLTP CO2gpkm130Litre per 100km6.96MPG (combined)40.6
makeCitroenmodelC4 NewderivativePureTech 130 Sense Plus S&SWLTP CO2kg/l1.88WLTP CO2gpkm122Litre per 100km6.48MPG (combined)43.6
makeCitroenmodelC4 NewderivativePureTech 130 Sense Plus S&S EAT8WLTP CO2kg/l1.88WLTP CO2gpkm131Litre per 100km6.96MPG (combined)40.6
makeFiatmodelTipo Saloonderivative1.4 Easy 95hpWLTP CO2kg/l1.93WLTP CO2gpkm129Litre per 100km6.69MPG (combined)42.2
makeVolkswagenmodelCaddy Maxi Kombiderivative1.0 TSI 102PSWLTP CO2kg/l1.93WLTP CO2gpkm139Litre per 100km7.21MPG (combined)39.2
makeFordmodelFocus Activederivative1.0T EcoBoost Mild Hybrid Active Edition 155PSWLTP CO2kg/l1.95WLTP CO2gpkm119Litre per 100km6.1MPG (combined)46.3
Bottom 10 CO2 per litre petrol vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makePeugeotmodel2008 SUVderivative1.2L PureTech GT Premium 155 EAT8 S&SWLTP CO2kg/l3.28WLTP CO2gpkm141Litre per 100km4.3MPG (combined)65.7
makeJeepmodelCompassderivative1.4 MultiAir II 170hp S 4x4 AutoWLTP CO2kg/l3WLTP CO2gpkm210Litre per 100km6.99MPG (combined)40.4
makeJeepmodelCompassderivative1.4 MultiAir II 170hp Longitude 4x4 AutoWLTP CO2kg/l2.97WLTP CO2gpkm208Litre per 100km6.99MPG (combined)40.4
makeFordmodelFiesta 5 Doorderivative1.0T EcoBoost ST-Line X Edition 125PS AutoWLTP CO2kg/l2.77WLTP CO2gpkm133Litre per 100km4.8MPG (combined)58.9
makeVolkswagenmodelTiguan Newderivative2.0 TSI Elegance 190PS 4MOTION DSGWLTP CO2kg/l2.62WLTP CO2gpkm194Litre per 100km7.39MPG (combined)38.2
makeNissanmodelMicraderivative1.0 IG-T 100 N-Sport CVTWLTP CO2kg/l2.59WLTP CO2gpkm145Litre per 100km5.6MPG (combined)50.4
makeAlpinamodelB3 Saloonderivative3.0 B3 BiTurbo 462hp Sport-AutoWLTP CO2kg/l2.57WLTP CO2gpkm252Litre per 100km9.81MPG (combined)28.8
makeAlpinamodelB3 Touringderivative3.0 B3 BiTurbo 462hp Sport-AutoWLTP CO2kg/l2.57WLTP CO2gpkm252Litre per 100km9.81MPG (combined)28.8
makeFordmodelFiesta Active 5 Doorderivative1.0T EcoBoost Mild Hybrid Active X Edition 125PSWLTP CO2kg/l2.56WLTP CO2gpkm123Litre per 100km4.8MPG (combined)58.9
makeVolkswagenmodelT-Rocderivative1.5 TSI EVO SEL 150PSWLTP CO2kg/l2.56WLTP CO2gpkm151Litre per 100km5.9MPG (combined)47.9

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