def

  1. D

    I put DEF in my fuel tank...

    After owning my 2015 6.7L F-250 for 5 years, I made a big mistake just now. I got distracted and put a gallon of DEF in my fuel tank. Fortunately, I realized my mistake before I cranked the truck. It is sitting in my garage and I am about to drain the tank. Is draining the tank sufficient? Is...

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