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Im not sure what the PO ran in my car so i was trying to figure out what grade of oil to start running in my 289 and to stick with it, Straight 30, 10W30, ? I want to run conventional oil, not synthetic.
ya but that makes me want to ask what should i be using here in AZ cause its hot yr round then in winter it gets righ roung freezing in the morning i live in PHX BTW