Ford F250 Replace Fuel Filter How to | Ford-trucks Nov 18, 2014This article applies to the Ford F-250 and F-350 Super Duty (2005-2014). A fuel filter is an essential component for every vehicle. It was designed specifically to keep clean fuel funneling through the system, therefore enhancing gas economy and Which Lube for Fuel Filter O-Ring? - Diesel Forum Mar 23, 2012Any petroleum based lube will do. Some use petroleum jelly, others just use fuel. I have a jar of 99 cent store vasoline for these kinds of things, On my truck, when I change the fuel filter, I just dip my clean finger in the fuel from the old filter and wet the O ring.
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