22-10-2013, 08:10 PM
(22-10-2013, 06:42 PM)Toms306 Wrote: Hmm, those figures don't look accurate to me lol, it cant change so much!
Wheels and tyres will make a difference but not that much.
It has been cold lately though, might just be that you're doing short slow journeys without the engine getting up to temp?
I do it by waiting till it hits the red light, putting x amount of fuel in and using an online calculator to work the mpg out
Using diesel from a jet garage, I'm thinking the gauge might be faulty as I can squeeze 60 miles out without the needle moving from just slightly touching the red :S
As for journey lengths I tend to keep the car running between journeys of between 3-5 miles each way, I don't rev it hard especially in the cold