Klotz KL-604 Cleanest Catalytic Converter Cleaner – 1 Pint | Fuel Additive for Gasoline Engines

Help restore catalytic converter efficiency and clean your fuel and exhaust systems with Klotz KL-604 Cleanest Catalytic Converter Cleaner. This professional-grade fuel additive is formulated to reduce hydrocarbon emissions and target carbon deposits throughout the fuel and exhaust system.

• Cleanest formula available to help reduce hydrocarbon emissions
• Maintains catalytic converter efficiency while cleaning fuel injectors, oxygen sensors, and cylinder head chambers
• Restores and maintains exhaust and fuel system cleanliness
• Improves acceleration and fuel economy (MPG) by reducing carbon build-up
• Oxygen sensor safe and suitable for modern engines
• Surface-active chemistry continues cleaning even after the treated fuel is depleted
  

Ideal For
Gasoline engines, including port fuel injection (PFI), gasoline direct injection (GDI), turbocharged, and supercharged applications. Useful as routine maintenance or as a pre-treatment before emissions testing.

How to Use
Empty the contents of one 1-pint (16 oz) bottle into a 16–20 gallon fuel tank. Drive normally until the treated fuel is depleted. For best results, use periodically (such as every three months) or as needed before emissions testing.

Klotz Quality
Made in the USA by Klotz Synthetic Lubricants, a brand trusted for decades in motorsports and high-performance applications. KL-604 is designed to support cleaner operation and help maintain peak efficiency of modern emissions-equipped gasoline engines.

Fuel Additive - Cleanest Catalytic Converter Cleaner - 1 pt - Gas - Part Number: KL-604