Quote:
Originally Posted by oldtrux
15w40 is diesel oil,i would think it would take a while to get to the top end!i would think the factory called for 10w30,just my 2 cents worth though!
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I heard the Rotella of good for older cars because of the zinc. It's like buying regular oil but with the zinc already in it. I suppose it won't be too bad depending on the grade.