The problem is that the conditions AREN'T the same. People describe a few discrete factors but can't truly quantify how long they stay at an RPM, where they shift, what the humidity is, if they're driving uphill, etc etc. The cars don't vary enough for oil temperatures to be dramatically different from car to car. The drivers do.

The OP states an ambient temp of 45°F. That's hardly warm enough to get the tires up temp much less the oil unless you're doing burnouts and driving around in 2nd gear.
It's 41° here today, and a spirited romp around my local twisties produced oil temps around 180°.
The OP should come back and report when it's 90° where he lives.

Agreed. For casual driving, I generally shift between 3-3.5k and throw it into 6th to cruise when the speed limit is 45mph+. I'm sure most people leave it in 5th when driving in the city, so that's probably one reason my temp stays lower.

I was doing 90mph on highway for about 30~45min.
no burnout no 2nd or 3rd gear.
6th gear + cruise control + 90mph + 30~45min = around 210~215F.
and i just wanted to know if it is normal.

It's fine. In 70* weather my z06 runs 195* doing what you described and that's with an oem cooler, 10.5qt dry dump and only turning 2k rpm. Another 20* for a car with about half he oil, more rpm, and no oil cooler sounds just fine. I wouldn't sweat that.

dont try to understand Frank. its easier that way. But you, me, and of course the people who actually drive their car properly and have fun in it know that a oil cooler is definitely a good thing, if not a necessity.

:iagree: