i have a freightliner fl70 cummins engine and my engine and oil light comes on when going up a hill.
I had a mechanic look at it and he noticed the oil was 2 gallons over filled and drained it to correct level.the lights still come on and I am worried I might hurt motor if I continue to drive it.The power is fine but the lights still come on.
Anyone have any ideas.The oil was changed 3 weeks prior to this problem by my ex employer.i have never had this problem before and havnt had a mechanic put it on a diagnostic test.
please advise.