--- product_id: 281677330 title: "11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6)" brand: "royal purple" price: "€ 305.29" currency: EUR in_stock: true reviews_count: 5 category: "Royal Purple" url: https://www.desertcart.gr/products/281677330-11723-6pk-max-clean-fuel-system-cleaner-and-stabilizer-20 store_origin: GR region: Greece --- # 26% avg horsepower gain 32% avg fuel economy boost Up to 18% emission reduction 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6) **Brand:** royal purple **Price:** € 305.29 **Availability:** ✅ In Stock ## Summary > ⛽⚡ Clean fuel, fierce drive, greener planet. ## Quick Answers - **What is this?** 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6) by royal purple - **How much does it cost?** € 305.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/281677330-11723-6pk-max-clean-fuel-system-cleaner-and-stabilizer-20) ## 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 seamless ride every time - • **Drive Longer, Spend Less:** Experience an average 32% improvement in fuel economy—your wallet will thank you - • **Eco-Friendly Performance:** Cut harmful emissions by up to 18% and drive cleaner without compromise - • **Triple-Action Powerhouse:** Cleans, stabilizes, and boosts your fuel system in one bottle - • **Unleash Hidden Horsepower:** Boost engine output by 26% and feel the difference on every drive ## Overview Royal Purple Max-Clean Fuel System Cleaner and Stabilizer is a premium 3-in-1 synthetic additive designed to restore fuel economy by 32%, increase horsepower by 26%, and reduce emissions by up to 18%. Compatible with gasoline, diesel, ethanol blends, and biofuels, it cleans injectors, carburetors, and combustion chambers while preventing engine issues like rough idling and spark plug fouling. EPA/CARB compliant and safe for all 2- and 4-cycle engines, this 20 oz. formula treats 15-20 gallons per use, making it a must-have for performance-conscious 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: Make sure you fill your gas tank. It is good to 10 to 20 gallons Review: Seems to be the Best ## 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 | | Best Sellers Rank | #92,653 in Automotive ( See Top 100 in Automotive ) #102 in Automotive Fuel System Cleaners | | Brand | Royal Purple | | Customer Reviews | 4.6 4.6 out of 5 stars (138) | | 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 | ## Product Details - **Brand:** Royal Purple - **Global Trade Identification Number:** 00641330117237 - **Has liquid contents:** Yes - **Item weight:** 7.86 Pounds - **Unit count:** 120 Fluid Ounces ## Images ![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 A***R on 5 February 2026* Make sure you fill your gas tank. It is good to 10 to 20 gallons ### ⭐⭐⭐⭐⭐ 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 ## Frequently Bought Together - Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6) - Royal Purple 18000 Max Atomizer Fuel Injector Cleaner - 6 oz. (10) - Royal Purple 11757 Max Boost Octane Boost Case, 16 fl. oz (6 Pack) --- ## 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.gr/products/281677330-11723-6pk-max-clean-fuel-system-cleaner-and-stabilizer-20](https://www.desertcart.gr/products/281677330-11723-6pk-max-clean-fuel-system-cleaner-and-stabilizer-20) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-06*