Diesel Extreme Clean and Boost is a concentrated fuel system and engine cleaner designed to restore power and performance in all diesel engines from semi trucks to RVs. It removes internal and external injector deposits along with waxy and polymer buildup that can clog fuel filters. This powerful additive cleans injector tips cylinders fuel lines and tanks while dispersing moisture for a more efficient fuel system. After cleaning Diesel Extreme boosts cetane up to 7 points for better combustion improved fuel economy and increased horsepower. Improved combustion can also help reduce the frequency of DPF regeneration cycles.