We have used R programming language to analyse more than 100 models available at IDAE Website.
We have found a linear relationship between emissions and consumption described in the following mathematical formula (see below) written in Mathjax and calculated in R programming languages using data from 99 Jeep models:
Our formula obtained from 99 Jeep cars models:
\[emissions(gCO_2/100km) = 13.72 \times consumption+24.75\]*If you want to see the procedure followed to obtain these data, here is a presentation that explains everything in detail.
Now, if you put the number of liters of fuel your model consumes per 100 km, it will automatically calculate how many grams of CO2 the same model emits (using the data obtained with R Studio).