
06-15-2005, 07:24 PM
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CC Member
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Join Date: Dec 2000
Location: Tahoe City, Ca.,
Posts: 27
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Not Ranked
synthetic oil
I have a newly rebuilt 428 (approx 3000 miles). I am currrently running 20-50 racing motor oil and am going to change to synthetic. My question is, will it hurt if there are traces of the old oil mixed with the synthetic?
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