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Petrol consumption has dropped off a cliff.
Posted: Sun Mar 30, 2008 6:14 pm
by hex_da_rex
My mpg has nearly halved all of a sudden with no apparent reason... Can anyone help? I used to drive the gti every day but now i have a company car, i only get to drive the little beauty once a week. i'm only getting about 200 and the light will be on. HELPPPPPPPPPP!
Posted: Sun Mar 30, 2008 7:09 pm
by MaxZ
Short Journeys/Driving Recklessly?
Posted: Mon Mar 31, 2008 12:44 am
by Bepe
mine went down dramatically when my coolant temp sensor started playing up, could be that?
Posted: Mon Mar 31, 2008 4:54 pm
by VR6 South
faulty lambda probes can cause similar symptoms
Posted: Mon Mar 31, 2008 6:23 pm
by Tim_GTi
It may just be down to your driving style.
When I drove mine everyday back in Summer, my fuel consumption was decent.
But now, being in uni I only see it 1-2 weekends a month, and I now get alot less mpg. Purely because I can't get enough of driving it how I like to drive it.
When you drive it everyday you tend to think more about economic driving. When you drive it on occasion you drive how you like.
That's my view anyway. Could always be something wrong with alot of things already mentioned.
Posted: Mon Mar 31, 2008 6:34 pm
by Mouse_GTI
With regards to driving - ragging it/lots of cold starts & short journeys/town driving/traffic jams do the worst for your fuel consumption. The rule is to get into as low a gear as possible without labouring the engine. I usually go around 1800rpm at the very lowest which is around 40mph (indicated) in 5th. It can pull up to 70 from there in around 7 or 8 seconds iirc
Posted: Mon Mar 31, 2008 6:48 pm
by Tim_GTi
Yeh, my rule is if I'm trying to keep a good mpg I try drive around without hearing the BMC
Posted: Mon Mar 31, 2008 6:55 pm
by VR6 South
Tim_GTi wrote:Yeh, my rule is if I'm trying to keep a good mpg I try drive around without hearing the BMC
No point in having a BMC then
Posted: Mon Mar 31, 2008 6:59 pm
by Tim_GTi
That's only for when I'm keeping good fuel economy mate
Re: Petrol consumption has dropped off a cliff.
Posted: Mon Mar 31, 2008 7:51 pm
by r_penny23
Definitely sounds like the Lamda, mine went end of last year and was jsut getting 200 odd to the tank....worth checking
Posted: Mon Mar 31, 2008 10:01 pm
by Kelk11
any1 go any slower than 40 in 5th or is it just me?
Posted: Mon Mar 31, 2008 10:05 pm
by MaxZ
Below 40 is 4th Territory, otherwise you're just wasting fuel on trying to get more torque out of the power band
Posted: Tue Apr 01, 2008 8:29 am
by Mouse_GTI
I hate people who do 35 in a 40. It means I have to change down to 4th and waste fuel
Posted: Tue Apr 01, 2008 2:42 pm
by Tim_GTi
Kelk11 wrote:any1 go any slower than 40 in 5th or is it just me?
There have been times where I've gone 30. That's only when scraping the bottom of the tank though
Posted: Thu Apr 03, 2008 7:53 am
by hex_da_rex
Thanks, will check the sensor on the weekend... I have had the back brakes checked to see if the are sticking and they aren't so i guess it must be the sensor...