MAC Posted March 18, 2008 Report Share Posted March 18, 2008 From what I've read new synthetic oil is better than it use to be at sealing. I also remember somebody mention that synthetic helped stop oil leaking. I know that some complain that synthetic causes more leaking but I think I'll find out for myself. I bought SuperTech, Higher Mileage Formula, at Wal-Mart for $15/5 gal. Two gallons and I have some to spare along with an ACDelco filter. I'll post the results. Link to comment Share on other sites More sharing options...
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