---
product_id: 683097287
title: "Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce (Pack of 2)"
brand: "royal purple"
price: "HK$608"
currency: HKD
in_stock: true
reviews_count: 13
category: "Royal Purple"
url: https://www.desertcart.hk/products/683097287-royal-purple-max-clean-fuel-system-cleaner-and-stabilizer-11722
store_origin: HK
region: Hong Kong
---

# 2.6% horsepower boost 3.2% improved fuel economy Up to 18% emission reduction Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce (Pack of 2)

**Brand:** royal purple
**Price:** HK$608
**Availability:** ✅ In Stock

## Summary

> 🚗💨 Maximize your drive, minimize your emissions—clean fuel, clean conscience!

## Quick Answers

- **What is this?** Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce (Pack of 2) by royal purple
- **How much does it cost?** HK$608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/683097287-royal-purple-max-clean-fuel-system-cleaner-and-stabilizer-11722)

## Best For

- royal purple enthusiasts

## Why This Product

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

## Key Features

- • **Horsepower Enhancer:** Feel the 2.6% horsepower increase for smoother acceleration and driving thrill
- • **Fuel Economy Booster:** Gain an average 3.2% more miles per gallon—save at the pump effortlessly
- • **Universal Compatibility:** Works seamlessly with gasoline, diesel, ethanol blends, and biofuels in 2- and 4-cycle engines
- • **Eco-Friendly Performance:** Cuts hydrocarbon, NOx, and CO emissions by up to 18%, keeping your ride green and compliant
- • **Triple-Action Power Clean:** Cleans injectors, carburetors & combustion chambers for peak engine health

## Overview

Royal Purple Max-Clean Fuel System Cleaner and Stabilizer is a premium 3-in-1 additive designed to restore and optimize engine performance by cleaning fuel injectors, carburetors, and combustion chambers. It improves fuel economy by 3.2%, increases horsepower by 2.6%, and reduces harmful emissions by up to 18%. Compatible with gasoline and diesel engines, including ethanol blends and biofuels, it supports both 2- and 4-cycle engines without harming emissions equipment. Trusted by thousands, it’s EPA and CARB compliant, making it a top choice for professional-grade vehicle maintenance.

## Description

Royal Purple Max-Clean is a state-of-the-art high performance fuel system cleaner that maximizes the performance of your fuel system. Max-Clean restores fuel economy by deeply penetrating deposits and cleaning injectors, carburetors, intake valves and combustion chambers. Royal Purple Max-Clean is EPA / CARB Compliant. Recommended for use in gasoline and diesel engines and can be used with all ethanol blends or biofuel. Max-Clean can be used in both 4-cycle & 2-cycle engines and will not harm vehicle emissions equipment.

Review: GREAT PRODUCT - WORKS GREAT, I PUT IT IN WITH 1/42TANK LEFT DROVE IT AROUND TILL 1/4 TANK FILLED IT UP GAINED 2 MPG
Review: One of the best fuel system cleaners - This might be the best of the three top fuel system cleaners I use: Royal Purple made an almost instant improvement in fuel economy and acceleration in two of my vehicles, one an 18 year-old mini-van with nearly 200K miles and the other a newer CUV with almost 100K miles with a turbo. I also use BG44K and Chevron Techron. I always read and was told that Chevron was the "gold standard" in fuel system/fuel injector cleaners, but now I'm not so sure.

## Features

- The information below is per-pack only
- 3-in-1 fuel additive keeps new engines clean and improves vehicle's performance
- Improves fuel economy an average of 3.2 percent
- Increases horsepower an average of 2.6 percent
- Reduces hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively)
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXPWXZFM |
| Best Sellers Rank | #771 in Automotive ( See Top 100 in Automotive ) #7 in Fuel System Cleaners |
| Brand | Royal Purple |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,876) |
| Date First Available | November 7, 2025 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.5 pounds |
| Item model number | 11722 |
| Manufacturer | Royal Purple |
| Manufacturer Part Number | 11722 |
| Product Dimensions | 2.63 x 2.63 x 9.73 inches |

## Product Details

- **Brand:** Royal Purple
- **Item Volume:** 20 Fluid Ounces
- **Unit Count:** 2.0 Count
- **Number of Items:** 2
- **Item Weight:** 2.5 Pounds

## Images

![Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71FCV+QAFpL.jpg)
![Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/41JNMScCkTL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ GREAT PRODUCT
*by M***U on January 18, 2026*

WORKS GREAT, I PUT IT IN WITH 1/42TANK LEFT DROVE IT AROUND TILL 1/4 TANK FILLED IT UP GAINED 2 MPG

### ⭐⭐⭐⭐⭐ One of the best fuel system cleaners
*by B***O on February 16, 2026*

This might be the best of the three top fuel system cleaners I use: Royal Purple made an almost instant improvement in fuel economy and acceleration in two of my vehicles, one an 18 year-old mini-van with nearly 200K miles and the other a newer CUV with almost 100K miles with a turbo. I also use BG44K and Chevron Techron. I always read and was told that Chevron was the "gold standard" in fuel system/fuel injector cleaners, but now I'm not so sure.

### ⭐⭐⭐⭐⭐ Does the job!
*by M***P on February 19, 2026*

Not much to say. Works as expected!

## Frequently Bought Together

- Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce (Pack of 2)
- Royal Purple Max Boost Octane Booster - 16 oz.
- Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

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**Shop now:** [https://www.desertcart.hk/products/683097287-royal-purple-max-clean-fuel-system-cleaner-and-stabilizer-11722](https://www.desertcart.hk/products/683097287-royal-purple-max-clean-fuel-system-cleaner-and-stabilizer-11722)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-26*