--- product_id: 526006000 title: "Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz" brand: "nitrox" price: "Β₯9478" currency: JPY in_stock: true reviews_count: 13 category: "Nitrox" url: https://www.desertcart.jp/products/526006000-nitrox-clean-cat-catalytic-converter-cleaner-for-gasoline-engines-17 store_origin: JP region: Japan --- # Boosts fuel economy & engine performance Clears P0420 & P0430 error codes Restores catalytic converter efficiency Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz **Brand:** nitrox **Price:** Β₯9478 **Availability:** βœ… In Stock ## Summary > πŸš— Clean fuel, cleaner ride, clearer conscience! ## Quick Answers - **What is this?** Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz by nitrox - **How much does it cost?** Β₯9478 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/526006000-nitrox-clean-cat-catalytic-converter-cleaner-for-gasoline-engines-17) ## Best For - nitrox enthusiasts ## Why This Product - Trusted nitrox brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Emission Hero:** Pass smog checks effortlessly by breaking down carbon and resin buildup. - β€’ **Error Code Eraser:** Say goodbye to pesky P0420 & P0430 check engine lights with advanced cleaning action. - β€’ **Instant Power Boost:** Pour directly into your fuel tank and feel the immediate throttle response upgrade. - β€’ **Mess-Free Precision:** Includes a precision-fit spout for spill-free, hassle-free application every time. - β€’ **Fuel Efficiency Maximizer:** Optimize your MPG and extend engine life with regular quarterly use. ## Overview Nitrox Clean Cat is a scientifically formulated 17 fl oz catalytic converter cleaner designed for gasoline engines. It removes carbon and resin deposits to restore catalytic converter efficiency, improve fuel economy, and boost engine performance. It also helps clear P0420 and P0430 error codes, supports passing emissions tests, and prevents costly repairs with easy, spill-free application. ## Description The multi-purpose formula contains technically advanced additives specially designed to clean, restore, and bring your entire engine, including the fuel and exhaust system, back to life. The powerful formulation will optimize fuel efficiency, reduce emissions, improve torque, throttle response and BHP. Once added to the fuel tank Clean Cat gets to work immediately, removing harmful carbon and resin deposits from the catalytic converter and engine, in turn restoring the overall performance of your vehicle. Review: Did as it claimed! - This product works! I saw positive results almost instantly. Good valve for money. I strongly recommend this. Review: It May or May Not Work - I've used this product for years. It is a gamble as to whether it may, or may not work. But if it does, then you've saved a bit of money as it is a fraction of the cost of replacing a catalytic converter. If your car is 15, 20, or more years old and you're getting a check engine light with a code for the cat, It's probably not going to work. But if the vehicle is newer than that then there's a very good chance it will work. Also, you want to use the product within a few days of when the check engine light appears and you have confirmed a catalytic converter code. If you wait months after a check engine code appears before adding the cleaner then there is a reduced chance of it working. I typically add a can with less than a quarter of a tank, drive about 50 or 60 miles, fill the tank up with gas from Costco (Costco has a detergent additive in their fuel or use another brand of gasoline with a detergent additive) and add a second can to the newly filled tank. ## Features - POWERFUL CATALYTIC SYSTEM CLEANER : Nitrox Clean Cat is a scientifically formulated catalytic system cleaner designed to remove carbon and resin buildup, restoring your fuel and exhaust system to peak performance. Helps your vehicle to pass smog checks. - IMPROVES FUEL EFFICIENCY & PERFORMANCE: Optimizes MPG, enhances throttle response, increases BHP, and boosts overall engine performance. Ideal for drivers looking to reduce emissions and maximize power. - FIXES & PREVENTS P0420 & P0430 ERROR CODES: Helps clear check engine light related to catalytic converter inefficiency by breaking down harmful deposits that clog the system. Supports a cleaner burn for reduced exhaust fumes. - EASY TO USE: Works Instantly , just pour Nitrox Clean Cat directly into your fuel tank using the included spout. Works fast to clean the fuel injectors, combustion chamber, and catalytic converter in all gasoline engines. - PREVENTS COSTLY REPAIRS: Regular use (3-4 times a year) helps prevent engine and exhaust system failures caused by carbon buildup, extending the life of your fuel system and catalytic converter. (Tip: Set up Subscribe & Save to never miss a Cat Clean!) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B091Z28593 | | Best Sellers Rank | #472,601 in Automotive ( See Top 100 in Automotive ) #159 in Fuel System Cleaners | | Brand | Nitrox | | Brand Name | Nitrox | | Capacity | 500 ml | | Cleaning Agent Formulation | Detergent, Solvent | | Customer Reviews | 3.9 out of 5 stars 565 Reviews | | Included Components | Catalytic Converter Petrol Cleaner | | Item Form | Liquid | | Item Highlight | Fixes P0420 & P0430 codes for Gasoline Vehicles, Pass Smog & Emission tests, Improves MPG & Engine Performance | | Item Type Name | Catalytic Converter Petrol Cleaner | | Item Volume | 17 fluid ounces | | Item Weight | 1.1 pounds | | Manufacturer | Tetrosyl Ltd | | Material Feature | Unscented | | Material Features | Unscented | | Model Number | NPC500 | | Number of Items | 1 | | Package Size Name | 17 Fl Oz (Pack of 1) | | Part Number | NPC500 | | Product Benefits | Improves Fuel Economy & Engine Performance, Protects Engine Components, Restores Catalytic Converter Efficiency, Safe & Easy to Use, Supports Cleaner Emissions | | Recommended Uses For Product | Cleans and maintains catalytic converter health, Fixes P0420 & P0430 codes, For use with gasoline engine vehicles | | Scent | Unscented | | Size | 17 Fl Oz (Pack of 1) | | Special Features | Helps Pass Vehicle Emissisions Tests, Improves Engine Health and Efficiency, Precision-Fit Fuel Tank Cap: Designed to fit perfectly into your fuel tank hatch for hassle-free pouring and no spills., Restores Catalytic Converter Function | | Special Ingredients | Automotive Cleaning Chemicals | | Specific Uses For Product | For Gasoline Engines, Helps Pass Vehicle Emissisions Tests, Improves Engine Health and Efficiency, Restores Catalytic Converter Function Specific Uses For Product For Gasoline Engines, Helps Pass Vehicle Emissisions Tests, Improves Engine Health and Efficiency, Restores Catalytic Converter Function See more | | Surface Recommendation | Autmotive Exterior | | Unit Count | 17 Fluid Ounces | | Warranty Description | Standard | ## Product Details - **Brand:** Nitrox - **Item Form:** Liquid - **Material Feature:** Unscented - **Scent:** Unscented ## Images ![Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz - Image 1](https://m.media-amazon.com/images/I/815GT50nc9L.jpg) ![Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz - Image 2](https://m.media-amazon.com/images/I/61HdxMqWkRL.jpg) ![Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz - Image 3](https://m.media-amazon.com/images/I/81NGCVy9YqL.jpg) ![Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz - Image 4](https://m.media-amazon.com/images/I/710FFSWeVHL.jpg) ![Nitrox Clean Cat Catalytic Converter Cleaner for Gasoline Engines, 17 fl oz - Image 5](https://m.media-amazon.com/images/I/71KL4jcCmBL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Did as it claimed! *by G***H on March 1, 2026* This product works! I saw positive results almost instantly. Good valve for money. I strongly recommend this. ### ⭐⭐⭐⭐⭐ It May or May Not Work *by M***7 on December 28, 2023* I've used this product for years. It is a gamble as to whether it may, or may not work. But if it does, then you've saved a bit of money as it is a fraction of the cost of replacing a catalytic converter. If your car is 15, 20, or more years old and you're getting a check engine light with a code for the cat, It's probably not going to work. But if the vehicle is newer than that then there's a very good chance it will work. Also, you want to use the product within a few days of when the check engine light appears and you have confirmed a catalytic converter code. If you wait months after a check engine code appears before adding the cleaner then there is a reduced chance of it working. I typically add a can with less than a quarter of a tank, drive about 50 or 60 miles, fill the tank up with gas from Costco (Costco has a detergent additive in their fuel or use another brand of gasoline with a detergent additive) and add a second can to the newly filled tank. ### ⭐ It plugged my cats *by R***S on June 25, 2025* I should have heeded the reviews saying this stuff caused their cats to plug because that’s what it did to mine. Within two weeks of using this stuff, my GMC Terrain went from running great but with the check engine light on and throwing codes to replace the O2 sensor, to over 75% loss of power and clogged cats which I’m now having to replace. ## Frequently Bought Together - Nitrox Catalytic Converter Petrol Cleaner, 17 Fl Oz - Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner - 300 ml , blue , 10.14 Fl Oz (Pack of 1 ) - Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/526006000-nitrox-clean-cat-catalytic-converter-cleaner-for-gasoline-engines-17](https://www.desertcart.jp/products/526006000-nitrox-clean-cat-catalytic-converter-cleaner-for-gasoline-engines-17) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-29*