---
product_id: 106534792
title: "LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured"
brand: "liqui moly"
price: "₱2530"
currency: PHP
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.ph/products/106534792-liqui-moly-8931-catalytic-system-cleaner-uncoloured
store_origin: PH
region: Philippines
---

# long-lasting engine light relief removes combustion deposits 300ml precision formula LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured

**Brand:** liqui moly
**Price:** ₱2530
**Availability:** ✅ In Stock

## Summary

> ⚡ Clean smarter, drive cleaner — keep your engine’s heart beating strong!

## Quick Answers

- **What is this?** LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured by liqui moly
- **How much does it cost?** ₱2530 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/106534792-liqui-moly-8931-catalytic-system-cleaner-uncoloured)

## Best For

- liqui moly enthusiasts

## Why This Product

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

## Key Features

- • **Save Thousands:** Avoid costly catalytic converter replacements with effective sediment removal
- • **Revive Your Ride:** Special additive blend cleans catalytic system & intake for peak performance
- • **Eco-Smart Formula:** Chlorine reduction feature supports cleaner emissions and engine health
- • **Trusted by Thousands:** 4.2-star rating from over 2,300 users proves real-world reliability
- • **Pro-Grade Application:** Designed for targeted spray into air intake, maximizing cleaning efficiency

## Overview

LIQUI MOLY 8931 Catalytic-System Cleaner is a 300ml advanced additive solution engineered to clean and remove sediments and impurities from your vehicle’s intake and catalytic system. Trusted by thousands with a 4.2-star rating, it helps turn off check engine lights and avoid expensive repairs by restoring optimal combustion efficiency and reducing harmful deposits. Ideal for professional-grade maintenance, it requires spraying into the air intake for maximum effect and supports eco-friendly chlorine reduction.

## Description

LIQUI MOLY 8931 Catalytic-System Cleaner 300ml

Review: Catalytic convertor cleaner...worked! - This item works! Check engine light is off in both my 2012 Jeep liberty and my 2005 Nissan...and have stayed out for 6 months and havent come back on every few weeks like they were both doing. Both passed smog with no problem after driving around for only 35 miles...... . check engine light went out. Mechanic wanted 1600 bucks to change cat in my Jeep. Finally I feel we got something for our mony!
Review: Excellent quality, but be ready to work a bit - This worked great to keep the catalytic converter warning light off for several months. Be aware that it has to be sprayed into the air intake with a spray bottle, not just poured into your gas tank. It has to be sprayed into the intake downstream from the oxygen sensor, while the engine is warmed up, and with a helper keeping the rpms revved up while the first person sprays it in.

## Features

- Special combination of additives for cleaning and removal of sediments and typical impurities in the intake system and combustion
- Catalytic-system
- Item Package Weight: 0.299 kg
- Item Package Dimension: 17.6cm L x 5.0cm W x 5.0cm H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00XBOFZK2 |
| Best Sellers Rank | #19,477 in Automotive ( See Top 100 in Automotive ) #39 in Fuel System Cleaners |
| Brand | Liqui Moly |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,344) |
| Date First Available | July 30, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.5 ounces |
| Item model number | 08931 |
| Manufacturer | LIQUI MOLY |
| Manufacturer Part Number | 8931 |
| Model | 4100420089312 |
| Rim Diameter | 300 Millimeters |
| Safety Rating | Não aplicável |
| Special Features | Chlorine Reduction |

## Product Details

- **Brand:** Liqui Moly
- **Item Form:** Liquid
- **Material Feature:** Unscented
- **Scent:** Unscented
- **Specific Uses For Product:** Automotive Exterior

## Images

![LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured - Image 1](https://m.media-amazon.com/images/I/61N207u1YjL.jpg)
![LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured - Image 2](https://m.media-amazon.com/images/I/415vjw8IoXL.jpg)

## Questions & Answers

**Q: Can i use this in gas tank instead of intake spray? No harm or damage**
A: No, this product not for gas tank

**Q: My vehicles reading P0421 has anyone used this product and it help with the code?**
A: Used it and it helped with a O2 sensor issue which was giving me the warning light. Eventually had to replace the O2.

**Q: Este producto tiene restriccion para transportarlo en avion?**
A: Claro que si con demasiado gusto como les parece que pedí ese producto por Amazon en todo momento me decía que estaba en camino pronto iba a llegar y así se la pasó un mes y nunca llegó pero cuando lo ordené en el mismo momento me cobraron de la tarjeta el valor del producto

**Q: Does it work for diesel engines?**
A: I don’t think so

## Customer Reviews

### ⭐⭐⭐⭐⭐ Catalytic convertor cleaner...worked!
*by G***G on September 27, 2025*

This item works! Check engine light is off in both my 2012 Jeep liberty and my 2005 Nissan...and have stayed out for 6 months and havent come back on every few weeks like they were both doing. Both passed smog with no problem after driving around for only 35 miles...... . check engine light went out. Mechanic wanted 1600 bucks to change cat in my Jeep. Finally I feel we got something for our mony!

### ⭐⭐⭐⭐⭐ Excellent quality, but be ready to work a bit
*by M***X on August 9, 2025*

This worked great to keep the catalytic converter warning light off for several months. Be aware that it has to be sprayed into the air intake with a spray bottle, not just poured into your gas tank. It has to be sprayed into the intake downstream from the oxygen sensor, while the engine is warmed up, and with a helper keeping the rpms revved up while the first person sprays it in.

### ⭐⭐⭐⭐⭐ Need a sprayer
*by R***Y on June 8, 2024*

Used in a 2012 Prius with almost 300,000 miles, the cat below threshold DTC light was coming on. I put this through the hose from the valve cover before the throttle body with a small pump up sprayer I got at the hardware store, while it did look like it was cleaning gunk out of the cat it did not solve the problem, the light continued to come back on with the same error code. I took the car to Toyota and they are in the process of installing the 2 new cats they said it needed, about $2,500 here in California. I also used it in a 2003 Chevrolet Tracker 2.0L with about 85,000 miles and no CEL. I was able to use some clear tubing to hook it up to a plugged vacuum fitting after the throttle body, I did not see anything coming out of the exhaust but the car seems to have better acceleration. I bought 3 bottles and poured all 3 in the sprayer. Still have some left for next time. Seems like a good product though not always a cure all.

## Frequently Bought Together

- Liqui Moly 8931 Catalytic-System Cleaner, uncoloured
- Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.
- Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner - 300 ml , blue , 10.14 Fl Oz (Pack of 1 )

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-09*