Kg CO2 per litre of petrol

If you burn a litre of diesel this will produce 2.6391 kgs of carbon dioxide. Petrol has a lower carbon content and so produces 2.3035 kgs of CO2. 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
makemodelderivativeCO2 (kg/l)CO2 (gpkm)Litre per 100kmMPG (combined)
makeMcLarenmodel570GTderivative3.8 Twin-Turbo V8 570PS AutoCO2kg/l1.08CO2gpkm249Litre per 100km23.15MPG (combined)12.2
makeMcLarenmodel570S Coupéderivative3.8 Twin-Turbo V8 570PS AutoCO2kg/l1.08CO2gpkm249Litre per 100km23.15MPG (combined)12.2
makeMcLarenmodel570S Spiderderivative3.8 Twin-Turbo V8 570PS AutoCO2kg/l1.08CO2gpkm249Litre per 100km23.15MPG (combined)12.2
makeMcLarenmodel720Sderivative4.0 Twin-Turbo V8 720PS AutoCO2kg/l1.08CO2gpkm249Litre per 100km23.15MPG (combined)12.2
makeMcLarenmodel720S Spiderderivative4.0 Twin-Turbo V8 720PS AutoCO2kg/l1.08CO2gpkm249Litre per 100km23.15MPG (combined)12.2
makeAston MartinmodelDBS Superleggeraderivative5.2 V12 715hp AutoCO2kg/l1.25CO2gpkm285Litre per 100km22.78MPG (combined)12.4
makeHondamodelCivic 5 Doorderivative1.0 VTEC Turbo EX 126PS CVTCO2kg/l1.6CO2gpkm107Litre per 100km6.69MPG (combined)42.2
makeHondamodelCivic 5 Doorderivative1.0 VTEC Turbo Sport Line 126PS CVTCO2kg/l1.62CO2gpkm107Litre per 100km6.6MPG (combined)42.8
makeHondamodelCivic 4 Doorderivative1.0 VTEC Turbo EX 126PS CVTCO2kg/l1.65CO2gpkm107Litre per 100km6.49MPG (combined)43.5
makeHondamodelCivic 5 Doorderivative1.0 VTEC Turbo SR 126PS CVTCO2kg/l1.65CO2gpkm107Litre per 100km6.49MPG (combined)43.5
Bottom 10 CO2 per litre petrol vehicles
makemodelderivativeCO2 (kg/l)CO2 (gpkm)Litre per 100kmMPG (combined)
makeSkodamodelSuperb Estatederivative2.0 TSI SportLine Plus 272PS 4x4 DSG SCRCO2kg/l3.58CO2gpkm162Litre per 100km4.52MPG (combined)62.5
makeLand RovermodelRange Rover Sportderivative5.0 V8 Supercharged SVR 550hp AutoCO2kg/l3.12CO2gpkm290Litre per 100km9.29MPG (combined)30.4
makeCUPRAmodelAtecaderivative2.0 TSI DSG-auto 4Drive 300PSCO2kg/l2.95CO2gpkm168Litre per 100km5.7MPG (combined)49.6
makeJeepmodelGrand Cherokeederivative6.2 V8 HEMI TrackHawk Supercharged AutoCO2kg/l2.87CO2gpkm395Litre per 100km13.78MPG (combined)20.5
makeAlfa RomeomodelGiuliettaderivative1.4 TB Nero Edizione 120hpCO2kg/l2.65CO2gpkm164Litre per 100km6.19MPG (combined)45.6
makeFordmodelKugaderivative1.5T EcoBoost Titanium X 150PS FWD (S/S)CO2kg/l2.65CO2gpkm164Litre per 100km6.19MPG (combined)45.6
makeFordmodelTransit Connect Double Cab-In Newderivative1.0 L1 220 EcoBoost Trend 100PSCO2kg/l2.6CO2gpkm146Litre per 100km5.6MPG (combined)50.4
makeMorganmodelAero 8derivative4.8 V8CO2kg/l2.52CO2gpkm282Litre per 100km11.21MPG (combined)25.2
makeMercedes-BenzmodelB-Class NewderivativeB 220 AMG Line 4MATIC 8G-DCTCO2kg/l2.51CO2gpkm153Litre per 100km6.1MPG (combined)46.3
makeJaguarmodelXEderivative2.0 Petrol SE 200PS RWD AutoCO2kg/l2.48CO2gpkm165Litre per 100km6.65MPG (combined)42.5