Thread: What Oil and Grade are you guys using?
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Danglerb Danglerb is offline
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Join Date: Jan 2007
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Anybody know what it means when its a 5 in front of the W instead of a 0?

15W40 instead of 10W40?

I think it means truck use only, did you read the everything on the plastic bottle?
Old 03-08-2009, 08:17 PM
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