This is something I have wondered about ? just in good ole Tavern conversation one night I was talking to a guy who races Modifieds and owns a Auto Shop. I asked about running synthetic oil in my truck that is like new but has 170,000 miles on it . and he told me synthetic oil is his choice but for it to make a difference the vehicle would have had to ran synthetic oil since it was basically brand new. he said if your engine hasn't been ran on synthetic oil since it was new it isn't doing whatever it is that synthetic oil does as opposed to a non-sythetic. of course we know no matter what oil you use without it your vehicle will have a rather short life :) anyone know if there is any truth to that? like i said it was a conversation after quit a few Anheiser-Busch products had been consumed.... lol
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20 years ago