why does the mpg needle go to 0 mpg though? and its not normal, just been speakin to a dude , recons his gets 150 for £20 quid,, 100 miles for £ 30 is 24 mpg ,, mmmm , maybe your right a good service , air filter etc would sort it a bit, but even hardly touchin accelerator , the needle shows 0mpg, can the mpg needle be trusted?