17-07-2015, 01:21 PM
(17-07-2015, 11:53 AM)Toms306 Wrote: I'm saying it's impossible to calculate correctly! I can make mine better just by using a different pump and filling up sooner... And I do bother checking it everytime also, have spreadsheets and everything. [emoji14]Not if you do it on litres used its isn't, its only gonna be out by maybe 1mpg maximum at most.