Following yesterday's thread killer
Here is the promised update from my refill.
Got to 594 miles this morning and the last blob on the fuel gauge was not flashing so there was easily another 50+ miles in the tank. I found unleaded at 114.9p so I was not going to let that get away.
I got 40.04 l (8.8 gals) in to the tank (I have got as much as 45l (almost exactly 10 gals) in the tank before now so that confirms the potential 50 miles remaining) so that gave 67.4 mpg vs 67.2 on the computer. (I know that goes against what I said about the computer being more optimistic but even the refill method has variables, I cannot see down the filler neck to see what level I am filling to so what constitutes a 'full' tank is open to dispute, even if you could work to a fixed point there would still be variation due to any incline on the garage forecourt).
When I calculate pence per mile I use the price I used to fill the tank last time i.e. the cost of the fuel I have just burnt. That was 117.9 p/ l
so that came in at 7.9 pence / mile. (not bad a current prices).
I am overdoing the brackets (must try to cut down) I hope they aid (not hinder) comprehension.
Am I obsessing about the mpg!