Cataclean Complete Engine Fuel & Exhaust System Cleaner (5 Liter) Part # 120009CAT 
The Original Liquid Science. Patented & EPA approved Complete Engine, Fuel and Exhaust System Cleaner Reduces Emissions and Improves Overall Engine Performance Cataclean is a patented & EPA-approved complete engine, fuel, and exhaust system cleaner that has been proven to reduce carbon build-up and also clean your vehicle's oxygen sensors, fuel injectors, and cylinder heads. Excess carbon build-up robs your vehicle of horsepower, wastes fuel, and increases emissions output. Cataclean helps to reduce carbon build-up and optimizes your vehicle's complete powertrain. Cataclean eliminates fuel injector build-up cleaning the fuel system for maximum power production
EPA Approved
Easy to use - simply pop, pour and go
5L Fleet/Industrial package
Safe for gasoline, diesel and hybrid vehicles
Does not alter fuel composition and is safe for gasoline, diesel & hybrid engines
Restores, maintains & helps protect the catalytic converter, oxygen sensors, fuel injectors, cylinder heads and DPF (Diesel Particulate Filter)
Lowers total hydrocarbon emissions by up to 50%
Reduces harmful carbon build-up on oxygen sensors
Improves fuel efficiency
Restores engine performance
Legal in all 50 states
Patented formula