I always use the trip meter for keeping an eye on fuel level - in all my motors.
That's a reasonable average figure for the +8, if driven moderately.
My 4/4 will run anywhere from around 23 (doing Autosolos / Sprint tasters / driving tests etc.) to 39 on a long gentle potter down a motorway. Generally I get around 33 or 34.
Hope the problem is easily sorted. Start with the simple things first
Cheers,
