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International Automotive Technicians Network
Re: Contaminated fuel
Posted to HD/Fleet Forum on 7/12/2019

Sounds like someone possibly put DEF fluid in the main tank, that is a big Oops. Every since fuel stops started putting DEF pumps with the fuel pumps at stations, people think it saves time to just add it to the fuel. They have no idea what it is for and think... Login to read more.