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greasemykey · 05-10-2008, 11:02 AM

i run 10w30 royal purple full synthetic in my new engine but before that i ran mobile 1 10w30 with lucas oil synthetic stabilizer in it and it knocked no matter what. i love my GM but i may never buy another if they dont address this problem.

05-10-2008, 11:02 AM	#193
greasemykey Registered User Status: Offline Join Date: Aug 2007 Member ID: 73616 Pics: My Gallery Location: morehead city, nc Age: 24 Posts: 95	Re: Recalls & Engine Knock Info i run 10w30 royal purple full synthetic in my new engine but before that i ran mobile 1 10w30 with lucas oil synthetic stabilizer in it and it knocked no matter what. i love my GM but i may never buy another if they dont address this problem.