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[expertrider]

I was running B100 in my truck. I only put the Bio in the Aux tank, and let it fill up the main tank. I knew that the Bio would clean out the system after the first couple of tanks, so I replaced the filters after 500 miles; they were pretty dirty looking!

I have a small filter between the aux tank and the main tank. After about 10k miles, the small filter clogged up and I needed the fuel from the aux, so I removed the filter.

About 150 miles later, the stock filters completely clogged! The truck wouldn't go over 35 MPH. I replaced the filters (AND the small filter for the aux tank) and everything worked fine again.

I buy the Bio from a large truck-stop fuel dealer near me. He moves large amounts of the BIo, and has all the regular filters at the pumps.

So, I think the problem has to do with filtering.

I don't think that any of the major Bio producers filter to a small enough micron level. I think this causes the 6.0's filters to clog up.

The little aux tank filter that I used was just enough to filter out the goo from the bio.

I LOVE running Bio Diesel, but I've had to cut back to B20 because of the clogged fuel filter problems.
SInce switching, I still see the aux tank filter cogging up, but it seems to last a lot longer.

I think the guys that make it themselves filter the Bio a lot better, so they never have any issue.