--- product_id: 15025849 title: "Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6)" brand: "royal purple" price: "€ 171.89" currency: EUR in_stock: true reviews_count: 13 category: "Royal Purple" url: https://www.desertcart.hr/products/15025849-royal-purple-11723-6pk-max-clean-fuel-system-cleaner-stabilizer store_origin: HR region: Croatia --- # 3.2% avg fuel economy boost Up to 18% emission reduction 2.6% avg horsepower gain Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6) **Brand:** royal purple **Price:** € 171.89 **Availability:** ✅ In Stock ## Summary > 🚀 Unlock your engine’s hidden potential—clean, power up, and drive green! ## 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?** € 171.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/15025849-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 driving experience - • **Eco-Friendly Drive:** Cuts harmful emissions by up to 18%, making your ride cleaner and greener - • **Power You Can Feel:** Experience a noticeable 2.6% horsepower increase that keeps you ahead - • **Fuel Efficiency Game-Changer:** Boosts your MPG by an average of 3.2%—save more on every drive - • **Triple-Action Engine Revitalizer:** Cleans injectors, intake, and combustion chambers for peak performance ## Overview Royal Purple Max-Clean Fuel System Cleaner and Stabilizer is a premium 3-in-1 additive designed to clean fuel injectors, improve fuel economy by 3.2%, increase horsepower by 2.6%, and reduce emissions by up to 18%. Compatible with all gasoline and diesel engines, it prevents rough idling and engine knocking, restoring performance and efficiency for a smoother, eco-conscious drive. ## Description Max-Clean is a state-of-the-art fuel system treatment that cleans injectors, restores fuel economy and reduces both engine buildup and tailpipe emissions. Max-Clean’s proprietary technology targets both the intake system and combustion chamber and is effective on the entire spectrum of engines on the road, whether they are new or old, gasoline or diesel, naturally aspirated, turbocharged or supercharged. After multiple product fleet tests were conducted on various makes and models of vehicles, Royal Purple found that after, as little as one Max-Clean treatment can improve fuel economy an average of 3.2 percent and increase horsepower an average of 2.6 percent. Reduces Hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively). Prevents rough idle, hesitation and stalling. Prevents premature spark plug fouling. Reduces deposit-related engine knocking and pinging. Deposit build-up is a natural consequence of fuel combustion, unfortunately these deposits can have a significant effect on the performance and reliability of your engine. With Max-Clean, Royal Purple has developed a product that in most cases can bring engine surfaces back to like-new clean, restoring once-lost fuel economy and performance. Review: Royal Purple Fuel Cleaner - Royal Purple Max-Clean exceeded my expectations! Great price online compared to my local auto parts store, and the performance is impressive. My engine feels smoother, throttle response improved, and it’s reassuring knowing it cleans and stabilizes the fuel system. Excellent value for a high-quality product I’ll definitely keep using. Review: Works Really Well - I purchased a 20 oz can of this at AutoZone ($18.99 + tax). I used the can with Sunoco Super Unleaded gas in my 2019 F-150 with the V-8 engine. I then travelled from VA to GA (8 hour drive) and I definitely noticed a difference. Pick up to merge onto the highway and passing other vehicles was a lot better and I logged 20.2 miles per gallon, which is at least an improvement of 2 MPG. My truck also idled so great that you wouldn’t even think it was running. Highly recommend this product! ## Features - 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) - Prevents rough idle, hesitation and stalling ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BGS31MO | | Best Sellers Rank | #638 in Automotive ( See Top 100 in Automotive ) #5 in Fuel System Cleaners | | Brand | Royal Purple | | Brand Name | Royal Purple | | Contains Liquid Contents | No | | Contains Liquid Contents? | No | | Customer Reviews | 4.7 out of 5 stars 3,053 Reviews | | Global Trade Identification Number | 00641330117237 | | Included Components | Per Item Description | | Item Weight | 7.9 Pounds | | Manufacturer | Royal Purple | | Model Number | 11722 | | Number of Items | 1 | | Part Number | 11723-6PK | | Size | 120 Fl Oz (Pack of 1) | | UPC | 641330117237 | | Unit Count | 120.0 Fluid Ounces | | Warranty Description | 30 Days | ## 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) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Royal Purple Fuel Cleaner *by G***A on May 15, 2026* Royal Purple Max-Clean exceeded my expectations! Great price online compared to my local auto parts store, and the performance is impressive. My engine feels smoother, throttle response improved, and it’s reassuring knowing it cleans and stabilizes the fuel system. Excellent value for a high-quality product I’ll definitely keep using. ### ⭐⭐⭐⭐⭐ Works Really Well *by R***. on April 13, 2026* I purchased a 20 oz can of this at AutoZone ($18.99 + tax). I used the can with Sunoco Super Unleaded gas in my 2019 F-150 with the V-8 engine. I then travelled from VA to GA (8 hour drive) and I definitely noticed a difference. Pick up to merge onto the highway and passing other vehicles was a lot better and I logged 20.2 miles per gallon, which is at least an improvement of 2 MPG. My truck also idled so great that you wouldn’t even think it was running. Highly recommend this product! ### ⭐⭐⭐⭐⭐ Great product at a great price!! *by D***W on April 4, 2026* Great product!!! Several dollars cheaper than the auto parts store!!! The top fuel system cleaner!!! Highly recommend!!! ## 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.hr/products/15025849-royal-purple-11723-6pk-max-clean-fuel-system-cleaner-stabilizer](https://www.desertcart.hr/products/15025849-royal-purple-11723-6pk-max-clean-fuel-system-cleaner-stabilizer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*