Originally Posted by
Ian S
I never had that with extended periods of hard road use. I fitted an oil temp sensor in the sump because I was concerned at the temp in the summer under those conditions. It would reach at about 120°C, if I recall correctly. I seem to recall that people who knew stuff saying that was OK, but not much higher.
If it's getter hotter than that when lapping a circuit under a higher % of full throttle then I agree with you that a thicker oil has to be fitted. Or maybe it need more effective oil cooler in case the oil is being over heated, if that's possible.
That's not going to happen on a 1 minute sprint, much of which is braking or cornering on a light throttle. Especially if there there are no long straights.
Me also, I would tip the whole 4 litres in. Don't know if that was ideal, just didn't want to have a nearly empty bottle on a shelf. If you don't have a baffled sump it will slosh up one end on hard cornering.