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fuel consumption down with colder weather?

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Old Dec 4, 2006 | 06:21 PM
  #11  
18T's Avatar
18T
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Joined: Oct 2004
Posts: 5,441
From: Chicago Burbs /// KOTH 06'
Default RE: fuel consumption down with colder weather?

colder air is denser so it requires more fuel to have the same A/F ratio.

Up in the air we have a mixture control to precisely control that. it changes with temerature and altitude.
 
Old Dec 4, 2006 | 06:24 PM
  #12  
ProOnThaSnow's Avatar
Joined: Nov 2006
Posts: 832
From: www.auditalk.co.nr
Default RE: fuel consumption down with colder weather?


ORIGINAL: Deb38

ooohh those short drives are gonna pwn your car...particularly your exhaust. Moisture builds up on short drives and could corrode your muffle..but no biggy, just buy an aftermarket one that won't get eaten alive by salt and moisture!
It warms up everyday, so it burns the moisture (evaporates) it out. I used to work at Midas, so I know about mufflers being rusted out, dealt with them everyday. The worst is when the car sits, that'll take car of a whole exhaust system really quick.

And yeah, 18T is dead nuts on his theory, thats the main reason you use more fuel
 
Old Dec 4, 2006 | 06:38 PM
  #13  
chuckievi's Avatar
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Default RE: fuel consumption down with colder weather?

I use more fuel because my car spools so much sexier in cold weather than in the 90+ of the summer..... so I drive like a raving loony during the snowless winter.... but thats just me!
 
Old Dec 4, 2006 | 06:41 PM
  #14  
18T's Avatar
18T
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From: Chicago Burbs /// KOTH 06'
Default RE: fuel consumption down with colder weather?

ORIGINAL: ProOnThaSnow


And yeah, 18T is dead nuts on his theory, thats the main reason you use more fuel
lol hell yea , my "theory" is right.

 
Old Dec 4, 2006 | 06:53 PM
  #15  
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From: www.auditalk.co.nr
Default RE: fuel consumption down with colder weather?

LOL.
 
Old Dec 4, 2006 | 07:07 PM
  #16  
DavidL A4's Avatar
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Joined: Jul 2006
Posts: 160
From: Essex CT
Default RE: fuel consumption down with colder weather?

Run about 2 to 2.5 less mpg in colder weather
 
Old Dec 4, 2006 | 08:59 PM
  #17  
wood_e's Avatar
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Joined: Feb 2006
Posts: 1,764
From: Ames, IA
Default RE: fuel consumption down with colder weather?

an xW20 or 30 oil would have better cold start viscosity. Check the oil specs.
 
Old Dec 4, 2006 | 09:52 PM
  #18  
Ford2Audi6's Avatar
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Joined: Sep 2006
Posts: 268
From: Westchester, NY
Default RE: fuel consumption down with colder weather?

colder air = more lively turbo = more air so you need to match it with more fuel so less mpg.
 
Old Dec 5, 2006 | 02:27 AM
  #19  
96audia4's Avatar
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Joined: May 2006
Posts: 607
From: Townsend, MA
Default RE: fuel consumption down with colder weather?

I'm pretty sure there are also more additives in the gas during the winter.
 
Old Dec 5, 2006 | 04:12 AM
  #20  
Doose's Avatar
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Joined: May 2004
Posts: 1,096
From: Indianapolis, IN
Default RE: fuel consumption down with colder weather?

Anyone adjust their plug gap based on outside temp???
 



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