Quote:
Originally Posted by Jerry Clayton
oil temp needs to be ABOVE boiling temp of water(212*f, 100*c) in order to get the condensation out off the crankcase----
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Common misconception, and certainly not true.
Oil temps generally runs about the same as water temp, plus a few degrees. Max temps depends on the
oil in question, and time. 5 minutes at 250* isn't as big of a concern as 5 hours at 230*.
Oil is heated mostly by rpm's. 105*C (221*F) is a bit high for routine driving. That's something I would investigate. The first question would be - of course - is the dash gauge accurate? Once the oil is good and hot, hit the oil pan with an infrared thermometer. Not perfectly accurate, but should be fairly close.
If it's pretty close, then you have to wonder if your water temp gauge is accurate. Do the same thing, and check the thermostat housing. Again, not perfectly accurate, but should be pretty close.
Oil pressure that's too high will generate heat - either from a high pressure pump, tight bearings, or too much viscosity.
Viscosity is a big issue, IMO. Some people think that because the engine is in a Cobra, they need 20W-50 racing oil to go to cruise night. That's just not needed, and causes a host of other problems.