08-07-2008, 05:24 PM | #1 |
Registered User
Join Date: Aug 2007
Location: Central Michigan
Posts: 42
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Synthetic Oils
Is it safe to use FULL Synthetic in my 1969 GMC? I don't see why it wouldn't be. . . I use it in everything else. I'm aklso thinking of going toa heavier weight like a 15-50. . Any advice or comments guys? Thanks
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