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337 Posts
aren't we making this more complicated than it need be? To compare the relative costs it is simply the cost of fuel / the miles travelled (the output is pence per mile). This works for both petrol and electric and is a perfectly valid comparison. This way you dont need to fiddle about with Kw / mile which may get a number no-one really feels they understand or can compare easily with petrol.
Also no need to run to empty or near empty to calculate the petrol use you - whatever you put in is how much you've used since you last filled up! Divide the cost of that by the miles you drove...
Also no need to run to empty or near empty to calculate the petrol use you - whatever you put in is how much you've used since you last filled up! Divide the cost of that by the miles you drove...
