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Old 01-20-2013, 03:23 PM
Richard Martin's Avatar
Richard Martin Richard Martin is online now
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Join Date: Mar 2000
Location: Greenville, NC
Posts: 14,704
I'd have trouble taking advice from a guy that doesn't know what he's talking about. He seemed to be confused as to why Mobil 1 is rated SM/CF. He knew what the SM stood for but not the CF. He explained that synthetic oil must have a different rating system. CF is a diesel oil specification. It has nothing to do with being synthetic oil. He was kinda off on few other things too but what's the point.

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