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Old July 19th, 2020, 01:36 AM
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Robert B. Robert B. is offline
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Join Date: Sep 2017
Location: Tulsa, Oklahoma
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Default Re: What did you do for your GMC today?

Ok, I’ll check it out, thanks so much! I understood the same thing about the importance of Zinc in the oil. Unfortunately I’ve discovered most oils don’t list their contents anymore. I’ll see if I can find the two you suggest somewhere. Thanks again!


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