DPF CLEAN has high-performing detergents and heavy duty cleaning solvents that effectively scrub and remove debris, soot, carbon build-up, and oily residue from the fuel injectors, combustion chambers, turbo, EGR, catalytic converters, diesel particulate filter and the exhaust system. These along with other active chemical agents, react with the gases created in the combustion process to remove the remaining inorganic deposits. This process restores their function and with regular use maintains efficiency.Unclogs Blocked DPF. Extends DPF Life. Clear P242F & Other OBD Codes. Cleans & Restores Catalytic Converter.