---
product_id: 281677330
title: "Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6)"
brand: "royal purple"
price: "€ 256.00"
currency: EUR
in_stock: false
reviews_count: 5
category: "Royal Purple"
url: https://www.desertcart.it/products/281677330-royal-purple-11723-6pk-max-clean-fuel-system-cleaner-stabilizer
store_origin: IT
region: Italy
---

# 32% avg fuel economy boost Up to 18% emission reduction 26% avg horsepower gain Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6)

**Brand:** royal purple
**Price:** € 256.00
**Availability:** ❌ Out of Stock

## Summary

> ⛽ Power up your ride, save green, and lead the clean-driving revolution!

## Quick Answers

- **What is this?** Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6) by royal purple
- **How much does it cost?** € 256.00 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/281677330-royal-purple-11723-6pk-max-clean-fuel-system-cleaner-stabilizer)

## 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

- • **Smooth Operator:** Prevents rough idling, hesitation, and stalling for a flawless ride every time
- • **Drive Longer, Spend Less:** Experience up to 32% better fuel economy—your wallet will thank you
- • **Eco-Friendly Performance:** Slash hydrocarbon, NOx, and CO emissions by up to 18%—drive clean, drive proud
- • **Triple-Action Power Boost:** Cleans, stabilizes, and optimizes your fuel system in one sleek formula
- • **Unleash Hidden Horsepower:** Feel a 26% average horsepower increase that transforms your drive

## Overview

Royal Purple Max-Clean Fuel System Cleaner and Stabilizer is a cutting-edge 3-in-1 synthetic additive that cleans fuel injectors, carburetors, and combustion chambers while boosting fuel economy by 32% and horsepower by 26%. Compatible with gasoline, diesel, and biofuels, it reduces harmful emissions by up to 18% and prevents engine issues like rough idling and stalling. EPA/CARB compliant and safe for all engine types, this 20 oz. formula treats up to 20 gallons, making it a must-have for performance-focused drivers.

## Description

Royal Purple11722 Fuel Additive, Fuel System Cleaner and Stabilizer, 20 oz., Case of 6. Royal Purple's new Max Clean is a state of the art high performance synthetic fuel system cleaner that maximizes the performance of your fuel system. Max Clean restores lost fuel economy and deeply penetrates and cleans injectors, carburetors, intake valves, and combustion chambers. Royal Purple's Max Clean is EPA/CARB Compliant, safe for use in gasoline and diesel engines, and can be used with all ethanol blends or biofuels. The cleaner can also be used in both 4-cycle and 2-cycle engines and will not harm vehicle emissions equipment. One can treats 15 to 20 gallons.Features: In fleet tests fuel economy improved an average of 3.2 percent In fleet tests horsepower increased an average of 2.6 percent Reduces hydrocarbon, NOx and CO emissions Helps prevent rough idle, hesitation, and stalling Helps prevent premature spark plug fouling Helps reduce deposit related engine knocking and pinging.

Review: Seems to be the Best
Review: Well, i was skeptical, but the treatment works well ! Added 1 can to 20gals in my 2000 7.3 diesel van, and within the 1st 15mi noticed that when i tromp on it from a dead stop, the "black cloud" was about half as dense, and spewed out bout 1/2 the distance (til my speed and motor RPM picked up).... Added another can after i put 15 gals of bio-diesel ina almost empty tank.... "Black Cloud" of soot was still less than after 1st treatment and length of "cloud" was shorter (upon wicked acceleration)...FYI, i have a "performance chip" in it, which spools up the turbo quicker than stock programing.... I'm sold !!! Have not taken a "mileage" check yet, cause i added treatment both times without knowing how many gals i had in the tank.... Will fill her up , do the math, and report back at a later date.... (Lil background-my injectors were replaced 150k miles ago and was getting 16-17-18mpg on the highway-not pulling a trailer). Steve

## Features

- 3-in-1 fuel additive keeps new engines clean and improves vehicle's performance
- Improves fuel economy an average of 32 percent
- Increases horsepower an average of 26 percent
- Reduces hydrocarbon NOx and CO emissions (on average 12 13 and 18-percent respectively)
- Prevents rough idle hesitation and stalling

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BGS31MO |
| Brand | Royal Purple |
| Customer Reviews | 4.5 4.5 out of 5 stars (134) |
| Date First Available | 10 April 2013 |
| Item Weight | 3.57 Kilograms |
| Item model number | 11722 |
| Manufacturer | Royal Purple |
| Manufacturer Part Number | 11723-6PK |
| OEM Part Number | 11723 |
| Product Dimensions | 13.97 x 20.96 x 22.86 cm; 3.57 kg |

## Images

![Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6) - Image 1](https://m.media-amazon.com/images/I/61DwZzQT-KL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***E on 29 October 2025*

Seems to be the Best

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 10 January 2023*

Well, i was skeptical, but the treatment works well ! Added 1 can to 20gals in my 2000 7.3 diesel van, and within the 1st 15mi noticed that when i tromp on it from a dead stop, the "black cloud" was about half as dense, and spewed out bout 1/2 the distance (til my speed and motor RPM picked up).... Added another can after i put 15 gals of bio-diesel ina almost empty tank.... "Black Cloud" of soot was still less than after 1st treatment and length of "cloud" was shorter (upon wicked acceleration)...FYI, i have a "performance chip" in it, which spools up the turbo quicker than stock programing.... I'm sold !!! Have not taken a "mileage" check yet, cause i added treatment both times without knowing how many gals i had in the tank.... Will fill her up , do the math, and report back at a later date.... (Lil background-my injectors were replaced 150k miles ago and was getting 16-17-18mpg on the highway-not pulling a trailer). Steve

### ⭐⭐⭐⭐⭐ Review
*by D***S on 1 August 2025*

quality

## Frequently Bought Together

- Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6)
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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-28*