--- product_id: 50845016 title: "Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml" price: "$78.50" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/50845016-diesel-complete-fuel-and-exhaust-cleaner-catalytic-converter-valve-injector store_origin: US region: United States of America --- # Boosts fuel efficiency by up to 10% Cuts harmful emissions for cleaner air Cleans catalytic converter & injectors Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml **Price:** $78.50 **Availability:** ✅ In Stock ## Summary > 🚗 Clean fuel, cleaner conscience — drive smarter, not harder! ## Quick Answers - **What is this?** Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml - **How much does it cost?** $78.50 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/50845016-diesel-complete-fuel-and-exhaust-cleaner-catalytic-converter-valve-injector) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fuel Economy Optimized:** Improves mileage with every 3-month treatment, saving you money - • **Engine Performance Revived:** Restores power & smooth running by dissolving carbon deposits - • **Comprehensive 8-in-1 Cleaner:** Targets fuel tank, injectors, valves, sensors & exhaust system - • **Trusted & Insured UK Formula:** Safe, reliable, and backed by 4.6-star reviews from 500+ users - • **Emission Compliance Made Easy:** Helps pass MOT by reducing exhaust pollutants effectively ## Overview Cataclean Diesel is a premium UK-made fuel additive designed to dissolve carbon, gum, and resin build-up in diesel engines. It cleans both pre- and post-combustion components including injectors, catalytic converters, and EGR valves, improving fuel efficiency, reducing emissions, and helping vehicles pass MOT emissions tests. Suitable for a wide range of vehicles, it’s recommended every 3 months to maintain peak engine performance and longevity. ## Description Product Description Improves engine performance and improves fuel consumption Use Cataclean To help reduce exhaust emissions and fuel consumption If your car has failed its MOT test due to high emissions Remedy poor engine performance or if you have a clogged catalytic converter Help to maintain petrol, diesel and hybrid vehicles If your car has a P0135 / P0141 / P0401 / P0420 / P0430 Engine Code If your car has a rough running engine All benefit from regular use of Cataclean Over time, due to build-up of residue, gum & carbon, problems can occur in an engine's fuel & exhaust system, causing an increase in fuel consumption, a drop in performance & an increase in harmful exhaust emissions such as carbon monoxide & hydrocarbons which, in turn, damage the environment. These problems can occur in all vehicles but tend to occur in older vehicles, vehicles that are used for short journeys, in vehicles that are continually stopping & starting or where fuel quality is poor. CATACLEAN is a fuel additive and is not a fuel enhancer CATACLEAN should be added every 3 months…not every time you fill your tank CATACLEAN is a complete engine fuel and exhaust system cleaner CATACLEAN rapidly dissolves carbon, gum and resin and similar deposits in the fuel and exhaust system CATACLEAN cleans carbon deposits from catalytic converters and exhaust particulate filters CATACLEAN can help to reduce emissions, increase fuel economy and prevent engine part failures CATACLEAN has no adverse effects on a vehicles fuel and exhaust system and is fully insured. It is developed and manufactured in the UK How does Cataclean work? Cataclean is an extremely effective cleaner that will remove carbon, resin and gum build-up from the fuel and exhaust system. It is different to other fuel & exhaust system cleaners as it can clean post-combustion as well as pre-combustion, helping with problems such as catalytic converter issues, catalyst codes and EGR Valve issues. Performance and efficiency robbing carbon build-up occurs as a natural by-product of combustion, more severe issues happen when this is left to accumulate over time, such as: blocked catalytic converters, dirty sensors and engine management lights. Cataclean’s mechanism of action is to clean pre- and post-combustion, pre-combustion Cataclean is carried with the fuel - removing deposits as it passes over components like the fuel injectors and upon combustion, Cataclean creates an acidic vapour of carboxylic acids which will clean the exhaust system including oxygen sensors, EGR valve, catalytic converter and exhaust. Negative consequences of carbon build-up can be reduced MPG, poor performance and increased emissions. Here are some of the signs you could need Cataclean Increased exhaust emissions, failed MOT/NCT emissions, reduced performance, black/white smoke, rough running, lower fuel consumption, reduced power, engine management light Using Cataclean can prevent and cure these problems and ensure your engine runs better and lasts longer. The ultimate 8-in-1 product, Cataclean can clean Fuel Tank & Lines Fuel Injectors Combustion Chamber Valves Oxygen Sensors EGR (Exhaust Gas Recirculation) Valves Catalytic Converter Diesel/Petrol Particulate (DPF/PPF) Filter About Cataclean Safety Information Highly flammable liquid & vapour May be fatal if swallowed and enters airways Causes skin irritation. • Wear protective gloves/eye protection/face protection Causes serious eye irritation Keep away from heat/sparks/open flames/hot surfaces (no smoking) Take precautionary measures against static discharge Use only outdoors or in a well-ventilated area IF SWALLOWED: Immediately call a POISON CENTRE or Doctor. Do NOT induce vomiting Directions of use Remove seal before emptying entire contents of one bottle of Cataclean into fuel tank. Drive for at least 15 minutes and refuel when necessary. Recommended ratio of one 500ml bottle of Cataclean to approximately 15 litres of fuel. Compatability Cataclean is suitable for Family & performance cars, light commercial vehicles, buses, light and heavy plant, forklift trucks, generators, water pumps, motorbikes / scooters, quad bikes, tractors, power boats, yachts, combine harvesters, lawn mowers, jet skis Review: Good stuff - Excellent stuff, cleared the blocked DPF Review: Great product - Great product, reduced the soot from the exhaust ## Features - Causes serious eye irritation. - Causes skin irritation. - Highly flammable liquid and vapour. - In use may form flammable/explosive vapour-air mixture. - May be fatal if swallowed and enters airways. - May cause drowsiness or dizziness. - Repeated exposure may cause skin dryness or cracking. - VEHICLE MAINTENANCE > Safe for all engines, Cataclean original 8-in-1 engine cleaning system has been scientifically formulated to help your vehicle engine run better and last longer. Adding Cataclean as part of your regular vehicle maintenance routine to remove carbon build up improves fuel economy, reduce emissions, restores performance and protects catalytic converters - CLEANS & PROTECTS > Cataclean cleans, restores & protects the fuel tank and lines, fuel injectors, catalytic convertors, diesel particulate filters (DPF), exhaust gas recirculation valves, oxygen sensors, combustion chambers & intake and exhaust valves - REDUCE EMISSIONS > Regular use of Cataclean engine cleaning system can reduce emissions by up to 60% which can help prevent to MOT emissions failures and reduce air pollution - ENGINE PERFORMANCE > Using Cataclean fuel system cleaner restores engine performance, reduces vehicle maintenance costs and reduces fuel consumption, improving MPG fuel efficiency - USAGE > Add 500ml of Cataclean fuel additive per 15 litres of fuel every three months for optimum results ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B077B5D5MM | | Best Sellers Rank | 2,097 in Automotive ( See Top 100 in Automotive ) 54 in Fuel Systems | | Brand | Cataclean | | Customer Reviews | 4.6 4.6 out of 5 stars (527) | | Date First Available | 11 Nov. 2018 | | Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. | | Item Weight | 840 g | | Manufacturer | Cataclean | | Manufacturer part number | CAT002-TWIN | | Manufacturer reference | CAT002-TWIN | | Package Dimensions | 25 x 8 x 7 cm; 840 g | ## Images ![Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml - Image 1](https://m.media-amazon.com/images/I/517nyLuxB+L.jpg) ## Questions & Answers **Q: I accidentally bought Cataclean Diesel for my Petrol car. Will using it in a petrol engine cause any damage?** A: I personally can’t see it causing a problem / if you put it in a quarter of tank as specified then I would fill tank up in car . It may still clean the catlystic . **Q: What is difference between the green cap and black cap?** A: Good day GMB; green cap for petrol; black cap for diesel; regards Gordon **Q: Can I use this on an 1999 kawasaki zx9r?** A: You can use it but bare in mind that a bottle of cataclean is mixed with approximately a quarter tank of fuel. I don’t know how much fuel your bike holds so I would add it at a fuel station and then top up to about 20 litres and then go for a ride of 20-30 mins. **Q: when is the best time to add cataclean..full tank of fuel..half tank ///?** A: Best to add when tank 3/4 full, then drive vehicle for approx. 15 miles to allow to run through system. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good stuff *by A***D on 18 June 2026* Excellent stuff, cleared the blocked DPF ### ⭐⭐⭐⭐⭐ Great product *by M***Y on 3 July 2026* Great product, reduced the soot from the exhaust ### ⭐⭐⭐⭐⭐ good value for money for an excellent well known product *by R***E on 14 June 2026* Good value for money, excellent well known product for cleaning engine systems. ## Frequently Bought Together - Cataclean Diesel | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml - Redex DPF Cleaner Diesel, DPF Diesel Particulate Filter Cleaner To Clear Soot Blockages Quickly & Avoid Costly Repairs, Hassle-Free DPF Cleaner To Prevent Clogging & Reduce Emissions, 250ml - Carlube AdBlue with Integrated Easy Pour Spout, 10 Litres --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/50845016-diesel-complete-fuel-and-exhaust-cleaner-catalytic-converter-valve-injector](https://www.desertcart.us/products/50845016-diesel-complete-fuel-and-exhaust-cleaner-catalytic-converter-valve-injector) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-10*