4ktq high oil temp update

David.Ullrich at ferguson.com David.Ullrich at ferguson.com
Wed Aug 14 09:43:17 EDT 2002

140*C doesn't seem out of line to me. This is assuming sustained highway driving in high ambient temps. On 95*F+ days, I've seen mine climb as high as 145*C for a few minutes when driving a sustained 75-80 MPH. The water temps stayed rock steady at 1 line below 1/2 on the digi gauge.  Generally, any oil temps below 150*C aren't something to worry too much about. At 150*C the oil starts to break down faster than "normal" at 170*C you need to pull over al let it cool down as the oil is cooking itself...


Too Many Toys:
2002 VW Jetta GLS 1.8T Tiptronic
1993 RX-7 R1
1987.5 Audi Coupe GT "Special Build" 2.3 - Anthracite Black
1985 Chevy Impala Interceptor

-----Original Message-----
From: Marc Swanson [mailto:mswanson at sonitrol.net]
Sent: Wednesday, August 14, 2002 8:29 AM
To: quattro at audifans.com
Subject: 4ktq high oil temp update

I adjusted my TPS settings today per Javad's suggestions and it seems to
have helped smoothness tremendously.  My oil temps are still a little
high on the highway but lower that what I was getting before.. peak temp
that I got to was around 140c.  I think better airflow to the oil cooler
will lower that even further.

Here's a graph of my ride into work:


Thanks Nate for the great php script for displaying the logs!


Marc Swanson, Software Engineer
Sonitrol Communications Corp.
Hartford, CT

Email: mswanson at sonitrol.net
Phone: (860) 616-7036
Pager: (860) 948-6713
 Cell: (603) 512-1267
  Fax: (860) 616-7589

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