Foxracing6.7

For your high oil temp “issue” oil temps are not over heating till around 270-280 ish once your at 300 it can’t cool the the pistons fast enough and breaks down the oil to fast. 250 on mountains with a camper and synthetic oil(more resistant to heat breakdown) would worry me. But the other reply is correct with tunes egts May drop but piston temp and oil temp goes up. Hopes this helps