Household heat pumps

Wheel Nut:
Forget the heat humps for now, a petrol car that did 400 miles on a tankful of unleaded is now doing 250 miles on E10

I am using Shell V-power (E5) and i am getting the same if not more MPG it also seems to run smoother but i dont know if that is in my head, V-Power its more expensive but using it means i don’t worry what E10 is doing to it (in a bad way) V-Power E5 also has stuff in it that cleans the engine so worth the extra for me