My f250 uses oil. According to the owners manual 750 Mile's per qt is ok. It drank 5w40 like it was free! 200 miles to a qt. Delo 15w40 gets 450 miles per qt. Delvac and supertech 600 miles per qt.
Napa 15w40 goes 1000+ miles per qt! I would have never guessed it would make that big of a change
Napa 15w40 goes 1000+ miles per qt! I would have never guessed it would make that big of a change
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