E exdos Veteran Sep 28, 2012 #21 The OBC will use exactly the same numbers that the ECU will use for the correct fuelling, so it won't be far out. It sounds like you do quite a lot of driving with a cold engine and in low gears, all of which produce low mpg figures.
The OBC will use exactly the same numbers that the ECU will use for the correct fuelling, so it won't be far out. It sounds like you do quite a lot of driving with a cold engine and in low gears, all of which produce low mpg figures.
B bluestreak56 Veteran Maidenhead Sep 28, 2012 #22 Even less than a mile and it sounds like you're doing well. 4 miles I'd expect a tad more but not much.
Even less than a mile and it sounds like you're doing well. 4 miles I'd expect a tad more but not much.
