Why Did the Fuel Filter Clog After Using K100?

That clogged filter is proof that K100 is cleaning up the entire fuel system.

In older equipment, especially equipment run in dirty or dusty conditions, there may be dirt particles trapped in the gums and varnishes in the tank. When K100 dissolves those gums and varnishes those hard particles like dirt and rust are released into the fuel system.

In diesel fuel, microbe colonies grow at the fuel/water interface. When K100 eliminates the water, microbes can't breath, and they die - leaving their skeletons to clog the filters.

In either case, fuel filter changes are necessary to remove the debris K100 has cleaned out of the system. Continuous use of K100 will eliminate this necessity because the treatment keeps the fuel systems clean and free of gums and varnishes, and eliminates water to prevent new microbe growth.