lol yes it sort of helps me get an idea at present my XC60 D gets 40plus and i kind of drive like an old man now to try and conserve fuel (as ever time i pass the garage the price of fuel goes up ) i use almost my 20k milage every year. a lot of the petrol cars x1 4×4 xc40 4×4 get about 25 mpg so it quit a drop.
i dont drive fast now try a save full