Auto Tranny Question
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Race Director
Joined: Oct 2004
Posts: 18,401
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From: Retired but working
Cruise-In VI Veteran
Auto Tranny Question
On cold mornings I run 2100 RPMs @ 70 (in OD) until the tranny warms up then I'm 1900 @ 70. There is no slippage in any of the gears, level is OK, fluid good. Had tranny flushed refilled etc. 30k ago. Anyone else notice this on theirs.
Thanks
Thanks
Banned Scam/Spammer
Joined: Jul 2006
Posts: 2,911
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From: Simi Valley CA
When I had the 2.73 rr, it ran 2000 @ 75. Never noticed any change from cold to warm though.
oh, and now with the 3.42s.. 2400 @ 70... mileage =
oh, and now with the 3.42s.. 2400 @ 70... mileage =
Last edited by Todd157k; Nov 22, 2006 at 10:12 AM.
Pro
Joined: Aug 2005
Posts: 573
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I would say this is not a problem. The Over drives are not engaging to allow the car to run higher RPM to allow it too warm up.
I have had this also when it was really cold, the computer would keep higher rpm untill it warmed up. I do not have my manual with me at this moment so I cannot check to see what it states.
I have had this also when it was really cold, the computer would keep higher rpm untill it warmed up. I do not have my manual with me at this moment so I cannot check to see what it states.
Intermediate
Joined: Oct 2005
Posts: 25
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From: Garrett Park Maryland
I've noticed the same thing on my 2000 A4. I've done a similar comparison, but don't remember the exact RPM's I had when running cold vs running warm. I assumed it was generally related to the fact that as fluids get warm, there is less resistance (e.g. tranny fluid, bearing grease, etc.) and that as tires heat up (and thus pressure goes up), rolling friction is reduced.
