High Oil Temperature.

[*Cobber*]

LS engine should be running the good old Mobil 1 synthetic 5w30 oil and while 150c is pushing the friendship the only damage will be that the oil will oxidize quicker and it's life ill be shortened somewhat. It's a good idea to drop the oil in a new engine after a couple of thousand anyway to get rid of the manufacture debris. Synthetic oils oxidize much less than a mineral.

A mineral oil at that temperature would be just about stuffed and would require a change. A mineral oil's lie halves for each 10 degree rise above 70c. Automotive oils are packed with antioxidant additives and when exposed to high temps they soon get used up.

If your going to spank it on a track day I would change out to Mobil 1 5w50

Just my two cents but your engineer must be nuts doing a heavy track day to test the brakes before the full mechanical inspection.

[Modena]

Originally Posted by *Cobber*

Just my two cents but your engineer must be nuts doing a heavy track day to test the brakes before the full mechanical inspection.

why do you say that Cobber? I reckon it's the perfect place to push the car to the limits to find out if anything is going to break, fail, or fall off, rather than having it break on the road in an uncontrolled environment and potentially cause harm. And as for the oil temp I'm pretty sure the full mechanical inspection is not going to include testing the current lubrication properties of the oil

not trying to have a dig, just my opinion.

[OZCOBRA]

Originally Posted by *Cobber*

LS engine should be running the good old Mobil 1 synthetic 5w30 oil and while 150c is pushing the friendship the only damage will be that the oil will oxidize quicker and it's life ill be shortened somewhat. It's a good idea to drop the oil in a new engine after a couple of thousand anyway to get rid of the manufacture debris. Synthetic oils oxidize much less than a mineral.

A mineral oil at that temperature would be just about stuffed and would require a change. A mineral oil's lie halves for each 10 degree rise above 70c. Automotive oils are packed with antioxidant additives and when exposed to high temps they soon get used up.

If your going to spank it on a track day I would change out to Mobil 1 5w50

M2CW..
Stay away from the good 'ol Mobil 1... the GOOD tuners I've used with LS motors wouldn't go near it given the choice,and with what they MOBIL charge you'd best have deep pockets $$$$$$$$.....I've always used Castrol Edge Sport 10w/60 not always readily available but for me a better choice.