How does PEX hold up in diesel fuel?

[aggiediesel01]

That is the roll over valve I used, both tanks, which cured the problem.
You need to swap the fill necks to the style that has the 1/2 inch hose above the fill nozzle insert point.. so you pump fuel below where the air is flowing out the top of the tank..
Pick and Pull is your friend there.. Ford Stealership wants big bucks for fill pipes, as I recall.

I did this so long ago, I had forgotten about using the filler necks... sorry

Or make them like I did, basically copying the old Transfer Flow high flow fill necks that aren't available anymore either. Rough details of how to do this are in a media folder of mine that these photos are from in case anyone else wants to go for it:

View media item 622