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Just got my UOA back from oilguard on my 2003 Xterra V6. I changed out the factory oil at 2500 miles and took a baseline sample for future comparisons. Don't know if this really means anything at this point in the engines life, but thought it might be interesting none-the-less. NickB [...

Hi guys, first post (but I've spent the last two days searching and reading). Anyhow, I've searched for the answer to this question but am getting conflicting information. I want to run schaeffer's 5w30 blend in my new 03 Xterra at my first oil change (scheduled at 3750 miles). I've seen...