hi fuel consumption

[supermoto 365]

hi, i have just been out in the golf and her in doors she was saying ,it was heavy on fuel. i put the mpg mode up on the dash and it was showing about 12 mpg, the more i drove the better it got till finnaly we got up to 34 mpg,but this took about 30 miles. when i got the golf it was showing 37 mpg driving steady, i have only had the car a week so does anyone know what is wrong. thanks mark

[supermoto 365]

just driven the car from cold again, on start up 8 mpg but went very quickly to 20mpg. driving like a grandad the best was 28 driving like i stole it 25 mpg HELP PLEASE!

[Andeh]

Problem with the throttle sensor ? Fuelling not right ? Problem with the ECU maybe ? Under inflated tyres ? Excess weight in the car ?

What model / engine is it ??

Andy 

[adyh]

It all depends on what sort of driving you are doing

Town , lots of traffic ?

MPG is calculated on the distance you have gone against the fuel used. It will start off low and build up over time

[supermoto 365]

thanks for the post's the golf is a mk3 2.0 8v gti 1998 with air con. the day before it was showing about 35 mpg driving steady .so overnight it has lost 10 mpg.

[adyh]

Jsut had a thought , you havnt moved the computer from 2 down to 1 have you ? So that you have changed from long term to journey ?

[Rich16v]

Mine was the same l spent months trying to sort it out and give up in the end, but funny enough its ok now after loads of motorway miles.l think its something to with the isv, because when slowing down l was braking against the engine and the idle was high some times, that seems to be ok now and l get 38mpg on a run now instead of 25.Also when l was using optimax it used loads and l found the same with my bike as well.

[supermoto 365]

a golf and a motard and the same fuel problem, were we seperated at birth. funny, just been racing today and fuel economy was not a issue!