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)
makeMazdamodelMazda CX-5derivative2.0 Takumi 165PS e-Skyactiv G MHEV 2WDWLTP CO2kg/l0.68WLTP CO2gpkm46Litre per 100km6.81MPG (combined)41.5
makeMINImodelCooper 5-Door Newderivative2.0 S Classic 204hp Auto 5 doorWLTP CO2kg/l1.56WLTP CO2gpkm140Litre per 100km9MPG (combined)31.4
makeMINImodelCooper Newderivative2.0 S Classic 204hp Auto 3 doorWLTP CO2kg/l1.56WLTP CO2gpkm140Litre per 100km9MPG (combined)31.4
makeMINImodelCooper 5-Door Newderivative2.0 S Sport 204hp Auto 5 doorWLTP CO2kg/l1.59WLTP CO2gpkm143Litre per 100km9MPG (combined)31.4
makeMINImodelCooper Newderivative2.0 S Sport 204hp Auto 3 doorWLTP CO2kg/l1.59WLTP CO2gpkm143Litre per 100km9MPG (combined)31.4
makeMINImodelCooper 5-Door Newderivative1.5 C Classic 156hp Auto 5 doorWLTP CO2kg/l1.62WLTP CO2gpkm133Litre per 100km8.21MPG (combined)34.4
makeMINImodelCooper Newderivative1.5 C Classic 156hp Auto 3 doorWLTP CO2kg/l1.62WLTP CO2gpkm133Litre per 100km8.21MPG (combined)34.4
makeMINImodelCooper 5-Door Newderivative1.5 C Exclusive 156hp Auto 5 doorWLTP CO2kg/l1.63WLTP CO2gpkm134Litre per 100km8.21MPG (combined)34.4
makeMINImodelCooper Newderivative1.5 C Exclusive 156hp Auto 3 doorWLTP CO2kg/l1.63WLTP CO2gpkm134Litre per 100km8.21MPG (combined)34.4
makeMINImodelCooper 5-Door Newderivative1.5 C Sport 156hp Auto 5 doorWLTP CO2kg/l1.69WLTP CO2gpkm139Litre per 100km8.21MPG (combined)34.4
Bottom 10 CO2 per litre petrol vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makeVolkswagenmodelT-Rocderivative1.5 TSI EVO Black Edition 150PSWLTP CO2kg/l2.98WLTP CO2gpkm143Litre per 100km4.8MPG (combined)58.9
makeLand RovermodelDefender 90derivative3.0 P425 MHEV X AWD AutoWLTP CO2kg/l2.96WLTP CO2gpkm316Litre per 100km10.66MPG (combined)26.5
makeLand RovermodelDefender 130derivative3.0 P425 MHEV X AWD AutoWLTP CO2kg/l2.93WLTP CO2gpkm323Litre per 100km11.03MPG (combined)25.6
makeLand RovermodelDefender 130derivative3.0 P425 MHEV X-Dynamic HSE AWD AutoWLTP CO2kg/l2.92WLTP CO2gpkm322Litre per 100km11.03MPG (combined)25.6
makeLand RovermodelDefender 130derivative3.0 P425 MHEV X-Dynamic SE AWD AutoWLTP CO2kg/l2.92WLTP CO2gpkm321Litre per 100km10.99MPG (combined)25.7
makeVolkswagenmodelT-Rocderivative1.5 TSI EVO Black Edition 150PS DSGWLTP CO2kg/l2.92WLTP CO2gpkm143Litre per 100km4.9MPG (combined)57.6
makeHyundaimodeli10derivative1.2 Premium 79PSWLTP CO2kg/l2.84WLTP CO2gpkm125Litre per 100km4.4MPG (combined)64.2
makeHyundaimodeli10derivative1.2 Premium 79PS AutoWLTP CO2kg/l2.83WLTP CO2gpkm130Litre per 100km4.6MPG (combined)61.4
makeHyundaimodeli10derivative1.0 Premium 63PS AutoWLTP CO2kg/l2.76WLTP CO2gpkm127Litre per 100km4.6MPG (combined)61.4
makeHyundaimodeli10derivative1.2 Advance 79PSWLTP CO2kg/l2.73WLTP CO2gpkm120Litre per 100km4.4MPG (combined)64.2

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