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Old 09-05-2000, 09:44 AM   #1
Mr. Jones
Scooby Newbie
Member#: 319
Join Date: Sep 1999
Location: Fort Collins, CO USA
1998 Audi A4 1.8T
Laser Red

Question Turbos and cold weather -> special measures?

I've got a question about turbo'd cars and cold weather in general. Up here in Fort Collins, during the winter mornings it can be pretty cold. The majority of the driving I do is ~5 mile jaunts to class and back, so for the most part, the car often doesn't even get fully warmed up before it's back to sitting in the parking lot again until class is over.

For this kind of short-duration, cold weather driving, are there special considerations to make on a turbo'd car? i.e, should one take more care to warm up the car before driving it, and perhaps run thinner weight oil in the winter to ensure it's moving through the turbo enough? A guy from Vortech (superchargers) suggested that to me once in a different context.

any help/knowledge etc. appreciated!
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Old 09-05-2000, 09:55 AM   #2
Scooby Specialist
Member#: 2003
Join Date: Aug 2000
Location: Calgary, Alberta, Canada
'99 BGP Legacy GT
'98 QS Legacy L (auto)


Up here in Canada, we see snow in the winters... all you really need to do is warm up your car for about 2mins or so (idling) and when you get there, since you didn't really use your turbo that much, just run your timer for 15sec. That should be sufficient for perserving the life of your turbo.

As for the motor oil. I run Motul 8100 E-tech 0w40 full synthetic in the winter and Motul 300V 5w40 full synthetic in the summer.

If you're using a 10w30 I'd recommend running a 5w30 for the winter, it'll allow for easier starts in the morning.

Just my 2 cents
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Old 09-05-2000, 10:23 AM   #3
Precious ❄
Member#: 603
Join Date: Dec 1999
Chapter/Region: NESIC
Location: Norfeast

If you have a boost controller, turn it down a couple psi to be safe. You will often get boost creep when the air is a little colder.
Thug is offline  
Old 09-06-2000, 08:53 AM   #4
Scooby Specialist
Member#: 20
Join Date: Jun 1999
Location: New York

No way...cold weather=mpore boost!!! air is more dense in the cold, car runs richer just via the nature of the ecu (albeit not much). Maybe that's just how I do things anyway (I am a boost freak)
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Old 09-06-2000, 11:05 AM   #5
Scooby Newbie
Member#: 2202
Join Date: Aug 2000
Location: Fanelia

I have a Pre Luber. It circulates the oil before I turn my car on. I run that, and then let the engine run for a minute. I always leave my oil circulating after shutdown for as long as possible. I don't touch the boost at all. I have an electronic boost controller, so if it creeps, it goes right back where it should be.

[This message has been edited by EscaFlowne (edited September 06, 2000).]
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Old 09-06-2000, 09:32 PM   #6
Scooby Newbie
Member#: 1284
Join Date: Apr 2000
2005 Legacy GT
Royal Blue Pearl


EscaFlowne, could you please give more details on the pre-luber? It sounds very interesting and may be a nice alternative to turbo timers.


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