Quote:
Originally Posted by ZDan
Knowing what the operational oil temperatures are would be required to know what viscosity to run. Without knowing oil temps, I would tend to go at least one range higher in viscosity for track days. Running a 5W30 in these cars even at very cold temperatures isn't going to be as risky as running 0W20 at 250+
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The operational viscosity of
most 5W-30's will
likely be in the range of a 20 grade anyway.
For track use, an oil pressure gauge is a fantastic tool in trying to select the proper viscosity.
-Dennis