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Posted by Chuck [74.232.28.37] on Saturday, February 25, 2012 at 08:29:49 :
In Reply to: oil change mileage posted by dodge1947 [99.44.240.209] on Friday, February 24, 2012 at 20:11:56 :
I usually go 7500 miles between changes and always add a quart of Marvel Mystery oil 50 miles before changing. Keeps everything very very clean internally.