According to the link I posted from TSC, the goldenrod filters are 3 microns. That being said, however, it's important to understand the "micron games" mfrs play. Absolute ratings, fudged ratings, etc. I'm working up a bypass oil filter for my Excursion and one has to be Sherlock to find out the real data
Did you find info to contradict the posted ratings? Wouldn't surprise me, but please share the link
Water blocking filters are *supposed* to stop the fuel flow once they've saturated with water. But...I've found that if left too long or if it gets too much water all at once, the filter can break up or fail and allow water and previously-filtered junk to pass
In a clear filter with drain on the bottom, you can see how much stuff is accumulating, drain any incidental water, inspect anything that looks unusual, etc. You can tell a lot by running the filtered-out stuff into your hand and looking at it and feeling it while you rub it around.
I'll take a pic of the filter setup I have today...
Dadnatron- When thinking about non-diesel cars and such, remember: You CANNOT run offroad in onroad vehicles. Getting caught- especially with as many fillups you are planning- could result in big fines. You could always use a piece of wire to fasten a tag or sign to the nozzle, "OFF ROAD DIESEL"
I like the idea of cable wrapped through the nozzle handle and around the pump and then padlocked. Like the old service stations used to do at night.
Oh, something I forgot to mention....
When installing your pump into the tank, adjust or cut the pickup pipe so that it is a few inches off the bottom. Yeah, you lose some capacity, but the majority of "bad things" lurk at the bottom

Hence the bottom drain (that I wish I had)
Good luck with your choices! Sounds like you are getting some good suggestions and have some decent options now :drink: