Cleans dirty injectors and prevents injector sticking in both High Pressure Common Rail (HPCR) and older systems, effective in all diesel fuels, including ULSD, biodiesel and biodiesel blends | Removes both internal and external deposits on fuel injectors | Boosts cetane up to 6 numbers – engines run smoother with less power lag and faster cold starts | Boosts power – reduces need for downshifting; Restores lost power and fuel economy | Contains Slick diesel Lubricator to protect fuel pumps and injectors from increased wear caused by poor quality Ultra Low Sulfur Diesel (ULSD) fuel