Changed my fuel filter and found some nasty looking stuff in there. The drain petcock was completely clogged and the water sensor float was glued to the bottom of the plastic piece by what appeared to be orange clay! Looks to be similar to the stuff found on baseball fields, Georgia etc. The stuff stained my driveway and I had to dig it out and blast it with brake wash and compressed air.

I've seen this mentioned a few times here and was curious as to how many of you have found this crud in their filters and if it is rust/sediment or actually clay. None of it was stuck on the magnet in the float so it might be clay--that means someone might be playing a pretty sick prank at some level in the manufacture of delivery of these trucks.

I've never seen this crap in the Racors on my Navistar work truck. We use a mobile fleet fill service so the stuff doesnt sit in the ground around here anyway.

Orange clay is a rare thing here in South Florida.