---
product_id: 46138084
title: "Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L"
brand: "cataclean"
price: "R6992"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Cataclean"
url: https://www.desertcart.co.za/products/46138084-cataclean-fuel-and-exhaust-system-cleaner-for-gasoline-engines-3l
store_origin: ZA
region: South Africa
---

# Boosts fuel economy & engine power 50% hydrocarbon emission reduction Clears check engine codes easily Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L

**Brand:** cataclean
**Price:** R6992
**Availability:** ✅ In Stock

## Summary

> 🚗💨 Clean fuel, clear lights, and unstoppable drives!

## Quick Answers

- **What is this?** Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L by cataclean
- **How much does it cost?** R6992 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/46138084-cataclean-fuel-and-exhaust-system-cleaner-for-gasoline-engines-3l)

## Best For

- cataclean enthusiasts

## Why This Product

- Trusted cataclean brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Maintenance:** Just pour in & drive—no tools, no hassle, 50-state legal for every ride.
- • **Check Engine Light Savior:** Resolve common error codes without costly repairs or garage visits.
- • **Fuel Efficiency Unleashed:** Clean injectors + cylinder heads = max mileage & restored engine vigor.
- • **Catalytic Converter Lifesaver:** Prevent carbon clogging to extend converter life and maintain peak performance.
- • **Pass Emissions with Confidence:** Slash carbon buildup & breeze through smog tests like a pro.

## Overview

Cataclean Fuel & Exhaust System Cleaner (3L) is a powerful liquid additive designed to reduce carbon deposits, improve fuel combustion, and restore catalytic converter efficiency. It cuts hydrocarbon emissions by up to 50%, clears common check engine light codes, and enhances fuel economy—all with a simple, tool-free application suitable for gasoline, diesel, and hybrid engines. Trusted by thousands to pass emissions tests and avoid costly repairs.

## Description

Buy Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L | Pass Emissions Tests – Clear Check Engine Lights, Restore Catalytic Converters, and Cleans Fuel Systems (120018CAT): Carburetor & Throttle Body Cleaners - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: My experience - My Experience It worked great for me! I was having a catalytic converter issue while trying to pass my NY inspection. I tried an O2 adapter before, but it didn’t work. Then I ordered this 2-pack and used one, and so far the check-engine light hasn’t come back. If you’re having the same issue, this may be worth trying before spending $2,000+ on catalytic converters. Just keep in mind that results can vary depending on the vehicle and the actual problem.
Review: Works as Advertised !! - Check engine light came on. UGH Who doesn't feel their stomach drop when that happens. Add to that it came on about 3 weeks before we were due for inspection in order to renew our registration. Double UGH! So we have it coded at the local auto supply place and it comes back to Catalytic Convertor. I call around and the price to swap out the convertor is about $2000. A simple further diagnosis was going to be about $200 before anyone would work on it. Its an older car and it wasnt unexpected. We have the money to fix it and while no one really wants to spend $2000 on a car repair .. you drive an older car and things happen. Our problem was .. it was a really really inconvenient time. We would have to rush to get it done in time for the registration renewal which would mean getting a rental car and more in order to go to work and not take the time. it was just bad timing and not finances that made it awful. So .. I will admit .. I didnt give this liquid magic a snowballs chance in &*^% of working but the wife said .. for $40 for the 2 pack lets give it a try and we can replace what needs replacing later. Fine honey but I think its throwing $40 bucks away. I used it as directed on a Saturday and then used the second bottle on the following Saturday and reset the computer. Drove it for about 9 days and no check engine. WIFE BROUGHT IT TO DMV TODAY AND IT PASSED INSPECTION!! Probably would have worked fine with just the one bottle but I figured since I was throwing money away might as way throw away more. Trouble is .. it wasnt throwing money away .. it just saved us about $1950 plus rental car costs and lost time from work. Product is AMAZING! Now we can take a little vacation time and address the problem without feeling rushed. Awesome stuff. Buy it

## Features

- PASS EMISSIONS TESTS WITH CONFIDENCE: Cataclean is specifically formulated to reduce carbon build-up and clean vital components like catalytic converters, injectors and oxygen sensors, helping your vehicle meet stringent smog and emissions standards. Reduces hydrocarbon emissions on gas motors by up to 50%!
- ENHANCE FUEL ECONOMY AND PERFORMANCE: Cataclean cleans fuel injectors and cylinder heads, leading to improved fuel combustion, better mileage, and restored engine power.
- CLEAR CHECK ENGINE LIGHTS: By cleaning your car’s exhaust and fuel systems, Cataclean restores optimal performance and helps resolve common check engine light codes like P0420, P0430, P0171, P0174, P0300, and P0401, potentially saving you thousands on repairs.
- MAINTAIN CATALYTIC CONVERTER EFFICIENCY: Regular use of Cataclean helps prevent carbon accumulation in your catalytic converter, ensuring it operates efficiently and prolongs its lifespan.
- EASY APPLICATION: Simply add Cataclean to your fuel tank as directed; no special tools or mechanical skills required, making it a convenient addition to your vehicle maintenance routine. Safe for use in gasoline, diesel and hybrid engines. 50-state legal.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0739TGHW8 |
| Best Sellers Rank | #612 in Automotive ( See Top 100 in Automotive ) #261 in Fuel Additives |
| Brand | Cataclean |
| Brand Name | Cataclean |
| Customer Reviews | 4.2 out of 5 stars 15,674 Reviews |
| Global Trade Identification Number | 00090127008126 |
| Included Components | Cataclean - Gas 3L Fuel/Exhaust System (120018CAT) |
| Item Form | Liquid |
| Item Type Name | Cataclean - Gas 3L Fuel/Exhaust System (120018CAT) |
| Manufacturer | CataClean |
| Model Number | 120018CAT |
| Number of Items | 1 |
| Part Number | 120018CAT |
| Scent | Unscented |
| Size | 1 Count (Pack of 1) |
| Specific Uses For Product | Engine |
| UPC | 090127008126 |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** Cataclean
- **Item Form:** Liquid
- **Scent:** Unscented
- **Specific Uses For Product:** Engine
- **Unit Count:** 1.0 Count

## Images

![Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L - Image 1](https://m.media-amazon.com/images/I/612DuzrIjJL.jpg)
![Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L - Image 2](https://m.media-amazon.com/images/I/81H3Y1+4q5L.jpg)
![Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L - Image 3](https://m.media-amazon.com/images/I/81ZBGIY2QyL.jpg)
![Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L - Image 4](https://m.media-amazon.com/images/I/81LEZg9lOwL.jpg)
![Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines, 3L - Image 5](https://m.media-amazon.com/images/I/81-eP4nJBpL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is this the same product as the 473ml bottles for $25 each?**
A: Yes. Check engine light came on. Recommended use of product every 6 months. Light never came on again.  Dealership would have had me replace catalytic converter.  Yikes!

**Q: My question is that this product is for 3 liter engines , my engine is 4.7 liters can i still use it on my vehicle**
A: 3 Liters is the liquid quantity content of this product. Can be used in any engine size, just follow the directions provided.

**Q: How much to use per gallon?**
A: I have used double the recommended amount with no unwanted results.

**Q: can it be used for 2.0 L engine**
A: Yes, the engine doesn't matter.  The product cleans out deposits from the engine and exhaust system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My experience
*by S***F on August 13, 2026*

My Experience It worked great for me! I was having a catalytic converter issue while trying to pass my NY inspection. I tried an O2 adapter before, but it didn’t work. Then I ordered this 2-pack and used one, and so far the check-engine light hasn’t come back. If you’re having the same issue, this may be worth trying before spending $2,000+ on catalytic converters. Just keep in mind that results can vary depending on the vehicle and the actual problem.

### ⭐⭐⭐⭐⭐ Works as Advertised !!
*by A***X on February 14, 2022*

Check engine light came on. UGH Who doesn't feel their stomach drop when that happens. Add to that it came on about 3 weeks before we were due for inspection in order to renew our registration. Double UGH! So we have it coded at the local auto supply place and it comes back to Catalytic Convertor. I call around and the price to swap out the convertor is about $2000. A simple further diagnosis was going to be about $200 before anyone would work on it. Its an older car and it wasnt unexpected. We have the money to fix it and while no one really wants to spend $2000 on a car repair .. you drive an older car and things happen. Our problem was .. it was a really really inconvenient time. We would have to rush to get it done in time for the registration renewal which would mean getting a rental car and more in order to go to work and not take the time. it was just bad timing and not finances that made it awful. So .. I will admit .. I didnt give this liquid magic a snowballs chance in &*^% of working but the wife said .. for $40 for the 2 pack lets give it a try and we can replace what needs replacing later. Fine honey but I think its throwing $40 bucks away. I used it as directed on a Saturday and then used the second bottle on the following Saturday and reset the computer. Drove it for about 9 days and no check engine. WIFE BROUGHT IT TO DMV TODAY AND IT PASSED INSPECTION!! Probably would have worked fine with just the one bottle but I figured since I was throwing money away might as way throw away more. Trouble is .. it wasnt throwing money away .. it just saved us about $1950 plus rental car costs and lost time from work. Product is AMAZING! Now we can take a little vacation time and address the problem without feeling rushed. Awesome stuff. Buy it

### ⭐⭐⭐⭐ Worked, but has issues.
*by L***S on March 3, 2016*

Here's the quick summary: Yes I used this and yes my car passed smog test.... but I would try lots of other things before using Cataclean again. My vehicle is a 2004 Toyota Sienna with 137,000 miles. Check engine light (CEL) has been on for two years now. The CEL is on due to the following codes P0420 - Cat Bank 1, P0430 - Cat Bank 2 , P2238 - AF Sensor Circuit. This year we got the registration renewal and were required to get a smog certificate. Since you can't pass smog test with CEL on, we took the van to the dealer to see about getting it the CEL fixed. The dealer recommended replacing both catalytic converters the A/F sensor and calibrate ECM. All for a cost of over $2,800. So instead of spending the $2,800 I figured it was worth it to give Cataclean a try. I followed the directions and added the entire contents to about 1/4 tank of gas. Then immediately drove the van until it was empty. The van was not completely empty, but the yellow fuel warning light did come on and the gauge was on E. At this point I filled up the tank with premium gasoline. After filling it I immediately drove the van for about 40 miles. I was expecting the CEL to turn off but it did not. At this point my story gets less normal than most I suppose. My wife drives this van most times and I have another car. It just so happened that my wife was sick with a bad case of the flu and she did not drive the Sienna for more than 1 week. So the Sienna sat with nearly a full tank of fuel and whatever was left of the Cataclean for 1 week. After 1 week of sitting in the garage, I decided it was time to try to drive the van and see if the CEL would turn off. This is where it gets very weird and discouraging and expensive. I pulled out of the garage and the van barely ran at all. It felt like only half of the engine was running. The engine had very little power and to make matters worse the CEL was now flashing ON and OFF. I pulled over and did some quick research on my phone and found out that a flashing CEL is bad news. I spent the next 4 hours "babying" my car. I would drive it for a little bit and the CEL would flash. So I would pull over and let it idle next to the curb. When the engine was simply idling the CEL would not flash. I did this for hours and hours and the CEL flashing got less and less prevalent. Finally the CEL stopped flashing after about 4 hours of driving and idling. If this does happen to you, you need to be very careful. Driving with a flashing CEL could lead to really expensive damage and even your car catching on fire. After that long evening of babying my car, the CEL never flashed again. But the car did not run correctly after that either. The car was rough at idle and vibrated a lot while it ran. And now, my car had a new code P0354. I took it to a mechanic and he replaced the #6 ignition coil and spark plug and cleaned the fuel injection system. This made the car run smooth and cleared the P0354 code. Replacing the ignition coil spark plug and cleaning the fuel injection system cost $510. I had a lot of expensive problems after I put in the Cataclean (see above). These problems could have been a coincidence and I could have had those problems without the Cataclean. After all, it's an old vehicle with lots of problems. Anything is possible. But I don't think I will be using Cataclean again. I cleared all codes and tried to run the monitors. For those of you not familiar, there are "monitors" which run in software on your vehicle. These monitors must be run and passed with no codes before you can have your car smogged. If the monitors generate codes, then the CEL turns ON. If you clear the codes, your CEL does go off, but your monitors are now "imcomplete" in your cars OBD memory. You cannot pass smog with incomplete monitors (actually the number of incomplete monitors allowed to pass smog varies from state to state so check with your motor vehicle department). You can find the rules for California here: [...] So now my car runs smoothly, the Cataclean has run through the emission system and the CEL is off. I have two incomplete monitors. One of the incomplete monitors is the Catalytic Converter monitor. So I then drive the van around town running some errands. Mostly stop and go, but some highway driving. After about 50 miles the CEL turns ON and generates code P0420... very discouraging. But I did not give up. I cleared the P0420 code and decided to try nothing but highway driving at moderate speed. Just a hunch I guess. So I got on the freeway and drove. Entirely freeway driving at very moderate speed. I got in the slow lane with the trucks and probably averaged 55 MPH and for it's worth I turned my Air Conditioning off. I did this for about 75 miles. I kept checking the scanner to see if the monitor for the Catalytic Converter had run, but it said incomplete. I must have checked the scanner 30 times to see if the monitor had run. Then it happened, the Catalytic Converter monitor ran and the status went to OK with no code. As soon as the monitor ran with no code I found the first smog station I could find and got a smog certificate. YEAH!!!! In order to do all of this I needed an OBDII scanner with me in the car to check monitors, read codes and clear codes. I used a very inexpensive OBDII scanner that I bought at Wal-Mart for $21. I think some of the inexpensive models offered on Amazon would work as well. You don't need an expensive scanner to do this. The main thing for checking monitors is a feature called "I/M Readiness Status"-- make sure your scanner can do this function. So did the Cataclean help pass smog? Did Cataclean cause the damage to the ignition coil? Did not driving it for a week in the middle of this process cause a problem? .... I don't know. If I were to ever need to use Cataclean again, I would drive the vehicle... a lot and try to get it through the system as quickly as I could. Hopefully, I won't need to use it again.

## Frequently Bought Together

- Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 3 Liter
- CRC Guaranteed to Pass Emissions Test Formula, 12 Fluid Ounce

---

## 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.co.za/products/46138084-cataclean-fuel-and-exhaust-system-cleaner-for-gasoline-engines-3l](https://www.desertcart.co.za/products/46138084-cataclean-fuel-and-exhaust-system-cleaner-for-gasoline-engines-3l)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-08-21*