[urq] Re: Oil Temps?

[QSHIPQ at aol.com]

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100C is the temp you WANT.  All turbo cars from audi since 1981 have an oil
cooler with a 100C thermostat.  The stock oil coolers are not adequate for
even the stock audi turbos IME.  The audi stock sending units are VDO
supplied, and IME, they read correctly on either VDO or Autometer guages.  As
a reference point, any temps registering over 135C is considered extreme.  At
150C you are breaking down the oil.  Above that, you should be driving on
your way to the oil change place.  At 170C, visit your mechanic, chances are
you need rings.

I've installed a wide variety of aftermarket oil coolers in audi turbo cars.
The closer you keep the oil to 100C, the longer your motor will last.  Moving
the oil cooler from the stock location in ANY audi turbo car also has the
side benefit of allowing cool air to get to the RS motor mount.

HTH

Scott Justusson
QSHIPQ Performance Tuning
'83 urq mit oil cooler replacing aux rad


In a message dated 7/3/02 6:59:09 AM Central Daylight Time,
mdeltergo at hotmail.com writes:


Gary,
this is the type of response I was hoping for.  It has started to get
summertime hot here in MAine, 90's last 2 days and my coolant is almost
hitting 100C on the highway, so I figured time to plumb a oil temp gauge.  I
had a 3 gauge set from a 4000s that had the 180C sender and gauge.  In it
went.  Only problem was it has 3 "quantified" marks, 60C, 100C and 170C.  It
seemed I was stuck at about 70C which seems low, but my oil cooler
definately works.  Others have shared 130-150C (seems high but while hard
driving) for NA and early turbo cars which may have not had oil coolers, not
sure.  MAybe time to make sure my gauge is good.
Mike