STP® Diesel Particulate Filter (DPF) 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, perfect for stop/start driving styles such as city driving, taxis and those that use their vehicle for short trips such as school runs. All diesel cars manufactured after 2009 have a DPF fitted to the exhaust system which traps harmful soot particles from being expelled into the environment.

• Unclogs filters 
• Prevents particles being released into the environment 
• Great for stop/start driving 
• Reduce emissions