Hi on monday i put £10 petrol in my car and then on tuesday i put in £7.50. i reset the millage counter and up to now i have done about 115 miles and i need to fill up again has the needle is near empty so is this good or bad or do you think i could do better. the sort of trips i have been doing some stopping and starting and some longs trips i drive a fiesta mk5 51 plate 1.3i endure e engine cheers alan.

Although it gives you a rough idea of mpg, the "a tenner last 2 days" or "I've done 150 miles when the light comes on" isn't very accurate.

Fill the the car up (yes I know it can cost @60 quid these days). Reset trip counter, run until almost empty. Refil to full noting the litres put in and the mileage on the trip.

Litres/4.54 to get gallons. Milages/gallons to get MPG.

if the fuel guage is anything like the mk4 you can get another 50 odd miles when it says its empty.

if the fuel guage is anything like the mk4 you can get another 50 odd miles when it says its empty.

I have drove round for abit with the light on but i don't want to push my look