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Author Topic: cold weather MPG  (Read 1917 times)

Offline jammac

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cold weather MPG
« on: 20 December 2007, 10:20 »
has anyone else fuel economy gone down a little because of the cold weather? is this normal? or is it just a coincidence and ive got a problem with my car?

i also recently changed my heater matrix which i know is entirely unrelated to fuel but maybe ive knocked something in the engine bay without realising as my MPG has dropped since then.

ive not been driving any differant...if anything ive slowed down coz of the ice etc
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Offline Horney

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Re: cold weather MPG
« Reply #1 on: 20 December 2007, 10:32 »
Ah but do you leave the car to warm up outside for 10 mins? This make a huge difference to your fuel consumption. Mine is the lower because of this.

Nick
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Offline mattneck(Beavis)

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Re: cold weather MPG
« Reply #2 on: 20 December 2007, 11:17 »
Quote from: Horneyâ„¢ on 20 December 2007, 10:32
Ah but do you leave the car to warm up outside for 10 mins? This make a huge difference to your fuel consumption. Mine is the lower because of this.

Nick

lower consumption due to letting it warm?
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Offline Horney

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Re: cold weather MPG
« Reply #3 on: 20 December 2007, 11:32 »
Oh you know what I mean!

Nick
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Offline AlanD

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Re: cold weather MPG
« Reply #4 on: 20 December 2007, 11:34 »
You use more fuel because the engine has to work harder at the start to warm up, thus using more fuel, thus making your consumption at the start of your jounrney worse.

hth.
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Offline jammac

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Re: cold weather MPG
« Reply #5 on: 20 December 2007, 11:57 »
Quote from: aland on 20 December 2007, 11:34
You use more fuel because the engine has to work harder at the start to warm up, thus using more fuel, thus making your consumption at the start of your jounrney worse.

hth.

yeah thats what i was thinking....but im dropping about 4-5mpg so i wanted to see what the rest of you lot thought.

cheers though my mind is at rest... its to cold to work on cars
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Offline Organisys

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Re: cold weather MPG
« Reply #6 on: 20 December 2007, 12:04 »
mine is using more fuel due to reving the nuts at junctions etc to get some het through the matrix !

 :laugh:
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Offline AlanD

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Re: cold weather MPG
« Reply #7 on: 20 December 2007, 12:07 »
Mine drops quite a bit, but thats only at the start, as soon as its up to temp and stuff its normal.

I leave mine on average MPG over the whole month (as apposed to individual jounreys) so dont really know how much it drops. My mpg so far this month is 25 if that helps lol.
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Offline jammac

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Re: cold weather MPG
« Reply #8 on: 20 December 2007, 12:40 »
lol naaa not really

my mpg to/from work is usually 37ish

but at the mo im only getting 32-34 in the journey

must be the cold weather im hoping
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Offline DazVR6

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Re: cold weather MPG
« Reply #9 on: 20 December 2007, 12:41 »
Mine was 13mpg last night, all be it a 3 mile journey.
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