Originally Posted by CammyNL
Seems like the engine (oil) reaches the optimal temperature after 10-15 minutes in normal driving conditions. Bear in mind that this test only included local roads with speeds up to 100km/h
That's about right. I have noticed the same thing here. When the outside temperature was around 15oC, it took around 15' for the oild to reach the 100oC mark. Last weekend, when the outside temp was 38oC, it took around 10' for the 100oC mark. In bot cases, coolat and oil temp where almost identical. BTW, last weekend, after some high speed runs and fast acceleration the oil temp reached 129oC.