Isx 15 Oil overheating

[Rawze]

(04-25-2023 )Ozzie18 Wrote:  ...
I forgot to mention that has not been deleted yet. I got that information regarding the oil temp from the kenworth booklet that came with the truck as well as online.

Does not matter what the book says.. 245 is the upper extreme and should rarely be seen if at all. Believe me, I see a lot of trucks and know what temps they run.

You can choose not to believe me but you do so at your own loss.

If it is not de-mandated and you are seeing excess oil temps like that then something somewhere is wrong!>.

Might be carbon packed, causing too much internal friction to the cylinder walls.. might be a slopped cam, might be a lot of things... but something somewhere is very wrong wit the temps you describe.. that or someone is abusing it, perhaps at low rpm and high torque, and the coolant is getting real hot too. -= maybe plugged up radiator with dirt etc.. and coolant temps are running high all the time,etc..

That or something internal causing to much friction, overheating the oil?.
Maybe bad oil thermostat?. .. who knows


-= I.E.> something.