29-09-2023, 09:22 AM
Mike you are correct about introducing multigrade oil into an engine that has not had all the oil ways and passages cleaned. Multigrade will not harm the engine in itself but will loosen and remove any sludge and muck left in the oil ways more than likely causing blockages and oil starvation. I should have mentioned it in my first input.
John Mason
John Mason
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.