JESSE1
Veteran Member
I've never had a problem with slime in the fuel until a few weeks ago. The fuel filter on my '59 White w/220 Cummins clogged up. When I changed the filter I saw a slimy residue on top of the spin-on filter. I went to Truck Parts World and got a bottle of FPPF biocide and dosed the fuel tank on the truck, my small bulk tank and the tank on my John Deere tractor.