Hi, I recently noticed my avergae fuel consumption dropping, like a stone (ie from a long term ave of about 26-28 down to 20 and then a little later 17.6). So I put air in the tyres reset the ave MPG and drove it home, apart from recording very low MPG I noticed the AVE MPG counting down whilst stopped at traffic lights, the decimal places were counting down at a rate of 1 per second. I never watched this before but i feel I have a problem, anybody know if this is normal? If it isn't what could be causing this loss?
Cheers in advance, I darent take it out at the moment