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1999 GMC C1500 Synthetic oil
1999 GMC C1500
I have a 1999 GMC Suburban 5.7 with 123,000 miles. Can I change to a synthetic oil. Would I need to flush the engine.
have the same problem?
Saturday, February 23rd, 2008 AT 10:19 AM
Yes you can, no don't flush!
Saturday, February 23rd, 2008 AT 10:23 AM
to post a reply.
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