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I have a 2011 f250 diesel. The problem is the def tank is full but it still counting down mileage like it is running out of fluid. I filled it a few months ago and it's still full. Any ideas. This is my first post
Did you fill it with a jug or at the pump. Mine likes to click the pump at 1/4 tank then if I go slow I can get another 4-5 gallon in it. Mine uses approx 1 gallon every 1000 miles