3x STP Diesel Particulate DPF Filter Cleaner Remove Soot Particles Unclog Filter EXTEND DPF AND ENGINE LIFE WITHOUT MANUAL DISASSEMBLY REDUCE SOOT EMISSIONS SAVE FUEL STP Diesel Particulate Filter Cleaner is designed to remove soot particles and carbon from diesel particular filters. One treatment helps unclog filters, removing accumulated unburnt soot to regenerate the DPF, […]