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Cataclean - Fuel and Exhaust System Cleaner - Gasoline - 5L. Truck/Fleet/Industrial

The Original Liquid Science. Patented & EPA approved Complete Engine, Fuel and Exhaust System Cleaner Reduces Emissions and Improves Overall Engine Performance

Part # 120009CAT
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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

About Cataclean

Cataclean is a patented fuel and exhaust system cleaner that reduces carbon build-up and also cleans your vehicle's oxygen sensors, fuel injectors, and cylinder heads. Reduced carbon buildup increases power, fuel economy, and improves emissions output.

Brand Cataclean
Emission Code5
Product TypeCataclean and Chemicals
WarrantyLimited 90 Day Warranty
Part Number120009CAT

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

*** Container has been tested in accordance with the provisions of the UN recommendations on the Transport of Dangerous Goods, Chapter 6.1 and successfully met the criteria in paragraphs to with regard to Drop Height testing, Leakproofness, Stacked Height, and Internal pressure elements ***
Limited 90 Day Warranty: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.