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Author Topic: My MPG is terrible  (Read 4860 times)

Offline martininwillerby

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My MPG is terrible
« on: 05 May 2008, 19:32 »
As above... Been on a trip to Meadow Hall today, I filled her up and reset the multi trip(1). It's about 3 miles to the motorway then on went the cruise at 80. I was checking the MPG whilst on the go and it varied from 25 to 30, I'd forgot to check the figure at the end so I repeated this on the way home. 58 miles travelled @ 26.7 MPG for an average of 60MPH. I use Shell 95 RON petrol as I have tried 98 RON stuff and found it to be more MPG than 95 RON (yes it feels more spirited but then I use yet more fuel). For the first 2 years the multi trip(2) was always about 25/26MPG but is now down to 21/22MPG (this has never been reset since picking her up from new). My question is do you think I've got a problem somewhere, I had a good blast the other day down the A63 in second and third gear too see if it was anything to do with the turbo pressure and to blow a few cobwebs off so to say. I found this to be ok IMO. Can any of you lot advise.....

Martininwillerby
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Offline maxamus

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Re: My MPG is terrible
« Reply #1 on: 05 May 2008, 19:54 »
if its any conselation, i never get above 30mpg on any long trips  :embarassed:

Check your tyre pressures and turn AC off if you have it on - they contribute to poor mpg's
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Phil mcavity

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Re: My MPG is terrible
« Reply #2 on: 05 May 2008, 20:13 »
Several factors, like has been said, town commute's and short jorneys., ie less then 10 minute trips will show mpg figure.Any remaps,

exhaust mods and using anything 98 octane and lower will give you a poorer figure. ALWAYS use 99 octane if you have a Shell or Tesco that

have 99 octane and not the 97 stuff.
 
using air con, heated seats, any High powered ICE systems if fitted etc all adds up. If you have DSG might be worth trying setting to manual and using the paddles as ive found it

improves your mpg as the gearbox will try and get you into the highest gear when you can travel more economically putting less LOAD on

the engine. ie 4th/5th on town runs rather then getting into 6th doing 30mph as an example.
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Offline stevieC

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Re: My MPG is terrible
« Reply #3 on: 05 May 2008, 20:16 »
On a long trip with cruise set at 80 my gti will average 37mpg. :smiley:
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Phil mcavity

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Re: My MPG is terrible
« Reply #4 on: 05 May 2008, 20:17 »
Quote from: stevieC on 05 May 2008, 20:16
On a long trip with cruise set at 80 my gti will average 37mpg. :smiley:

with a servere gale force 9 behind you and a downhill run, im sure your right stevie!
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Offline martininwillerby

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Re: My MPG is terrible
« Reply #5 on: 05 May 2008, 20:28 »
Thx for the quick response guys... I can't understand why for the first two years it's been about 25/26 MPG then for some reason it's took a downturn to 21/22MPG. I sure the last time we went to Meadow Hall I got nearly 30MPG... My town driving style hasn't changed as far as I'm aware. That's why I thought that something might be at fault.

Another thing is OIL USAGE.. I check mine regular and I haven't had to put a drop in. I still have the unopened bottle in my boot. I have it serviced yearly and have checked the oil both cold(first thing in a morning) and after been stood for 30mins after a run...

Cheers
martininwillerby

« Last Edit: 05 May 2008, 20:42 by martininwillerby »
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Offline TagnuT

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Re: My MPG is terrible
« Reply #6 on: 05 May 2008, 20:29 »
Has the MPG changed since you had the 19"s fitted. They are bigger heavier and wider giving more drag and higher rolling resistance than the 18"s
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Offline 182_blue

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Re: My MPG is terrible
« Reply #7 on: 05 May 2008, 20:31 »
Quote from: martininwillerby on 05 May 2008, 20:28
Thx for the quick response guys... I can't understand why for the first two years it's been about 25/26 MPG then for some reason it's took a downturn to 21/22MPG. I sure the last time we went to Meadow Hall I got nearly 30MPG... My town driving style hasn't changed as far as I'm aware. That's why I thought that something might be at fault.

Another thing is OIL USAGE.. I check mine regular and I haven't had to put a drop in. I still have the unopened bottle in my boot. I have it serviced yearly and have checked the oil both cold(first thing in a morning) and after been stood for 30mins after a run...

Cheers
martininwillerby



i have noticed strange mpg figures in all my cars, eg on the way to somewhere i got 30mpg, but on the way back i couldnt get over 28mpg ??, i guess the heat could have affected it in your case
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Offline 2007GTI

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Re: My MPG is terrible
« Reply #8 on: 05 May 2008, 20:33 »
MPG computer is never very accurate, try doing it old school, fill her up and take note of the mileage.
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Offline TagnuT

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Re: My MPG is terrible
« Reply #9 on: 05 May 2008, 20:35 »
My trip to work is about 21 miles, "mainly" in a down hill direction = 29 - 30 mpg

Trip home "up-hill" 27.5 mpg. Sames roads  :laugh:

Oh by the way was Meadowhall busy? It wasn't too bad on Sunday  :grin: :grin:
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