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Old 10-09-2008, 07:15 PM   #1
GAGT - Member
Join Date: Jun 2003
Location: Michigan
Posts: 35
Vehicle: 1999 Grand Am GT
gandolf77 Gettin' there
What is it that leaks from synthetic oil?

I've always used synthetic blend oil and am thinkin about switching to full synthetic. Here's my situation: my grand am has 100,000+ miles, I recently had the LIM done, so they changed the upper & lower gaskets and they machined the cylinder head as well, so none of that should have gunk built up that would loosen & leak. So, does the gunk build up somewhere else that I would have to worry about it leaking? Or am I in the clear to switch to synthetic. Thanks for the help guys, I just don't know enough about the inside of engines.
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