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International Automotive Technicians Network
Re: better fuel economy
Posted to Technical Theory Forum on 5/8/2008 1 Reply

A while back there was a duramax owner who questioned the validity of the oiled gauze type filter on its efficiency and what was actually the best filter for his truck. When all the tests had been run it was a real eye opener to find the washable oiled gauze f... Login to read more.

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