--- product_id: 81055775 title: "Royal Purple Max Boost Octane Booster - 16 oz." brand: "royal purple" price: "€ 35.39" currency: EUR in_stock: true reviews_count: 13 category: "Royal Purple" url: https://www.desertcart.fr/products/81055775-royal-purple-max-boost-octane-booster-16-oz store_origin: FR region: France --- # Boosts octane by up to 30 points Reduces engine knocking & pinging Protects non-hardened valve seats Royal Purple Max Boost Octane Booster - 16 oz. **Brand:** royal purple **Price:** € 35.39 **Availability:** ✅ In Stock ## Summary > ⛽ Ignite your engine’s true potential with Max Boost! ## Quick Answers - **What is this?** Royal Purple Max Boost Octane Booster - 16 oz. by royal purple - **How much does it cost?** € 35.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/81055775-royal-purple-max-boost-octane-booster-16-oz) ## 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 - • **Knock-Free Power:** Minimizes engine knock and pinging, unlocking smoother, more reliable power delivery. - • **Fuel Injector Detox:** Cleans fuel injectors to restore lost power and improve fuel economy. - • **Valve Seat Guardian:** Safeguards non-hardened valve seats by replacing harmful lead additives. - • **Race-Ready Octane Surge:** Elevate your fuel’s octane rating by up to 30 points for peak engine performance. - • **Catalytic Converter Friendly:** Formulated to protect oxygen sensors and catalytic converters from phosphorus damage. ## Overview Royal Purple Max Boost is a high-performance 16 oz octane booster designed to raise gasoline octane by up to 30 points, reduce engine knocking, and protect critical engine components. Compatible with carbureted, fuel-injected, turbocharged, and supercharged engines, it cleans fuel injectors, improves fuel economy, and safeguards catalytic converters, making it the ultimate choice for serious drivers seeking race-level performance enhancements. ## Description Royal Purple Max-Boost - 16 fl oz Can is a high-performance octane booster with fuel treatment that increases gasoline octane, reduces emissions, and enhances engine performance while stabilizing fuel. Max-Boost is formulated with MMT, which delivers the best octane enhancement to help eliminate engine-damaging detonation, pre-ignition, and pinging or knocking from low octane gasoline. Max-Boost is formulated for engines equipped with carburetors, port fuel injection and direct injection, as well as turbocharged, supercharged and nitrous-injected engines. Safe for use in leaded and unleaded gasoline's, and alternate fuels like gasohol, reformulated gasoline, and all ethanol blends. Max-Boost is safe for oxygen sensors and catalytic converters. Performance engine oils contain higher levels of phosphorus as an anti-wear additive, which can accumulate in catalytic converters and reduce their effectiveness. Max-Boost protects against phosphorus poisoning of catalytic converters. Review: Car - Works great Put it in On my 2018 grandcherokee And seems to perform much better Review: Defective / Damaged containers - The product is good. However the last four purchases have been challenging to open. The pull tab and the spout have broken each time. Some times peices fall back into the container. Which could become hazardous. ## Features - replaces lead additives for protection of non-hardened valve seats - raises octane rating up to 30 points or 3 numbers - restores power and fuel economy while cleaning deposits from fuel injectors - reduces power loss due to knock-retard in computer-controlled vehicles - reduces engine knocking/pinging and stabilizes fuel - max-boost is a racing formula and is not street legal. - Fit type: Vehicle Specific ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00HEZQHQU | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #32,476 in Automotive ( See Top 100 in Automotive ) #8 in Octane Boosters | | Color | No Color | | Customer Reviews | 4.6 4.6 out of 5 stars (1,240) | | Date First Available | December 19, 2013 | | Included Components | Auto part, Automotive Accessories, Replacement and Performance parts | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 12.8 ounces | | Item model number | ROY11757 | | Manufacturer | ROYAL PURPLE | | Part Number | 11757 | | Product Dimensions | 7.5 x 2.5 x 2.5 inches | | Size | 16 Fl Oz (Pack of 1) | | Style | Music | | Voltage | 12 Volts | | Warranty Description | Manufacturer Warranty | ## Images ![Royal Purple Max Boost Octane Booster - 16 oz. - Image 1](https://m.media-amazon.com/images/I/7175V8ytNtL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Car *by J***N on December 31, 2025* Works great Put it in On my 2018 grandcherokee And seems to perform much better ### ⭐⭐⭐⭐⭐ Defective / Damaged containers *by P***S on November 9, 2025* The product is good. However the last four purchases have been challenging to open. The pull tab and the spout have broken each time. Some times peices fall back into the container. Which could become hazardous. ### ⭐⭐⭐⭐⭐ Magic Stuff 👌 *by G***E on June 14, 2025* My tuner noticed my car had some ignition knock during some datalogs and told me to try some octance boosters for it. I went with royal purple and ran it for a few weeks and poured it in before filling up full tank. The knock is now gone along with the car feeling better with gas mileage and a cleaner torque response. Will continue to use this stuff 👍 ## Frequently Bought Together - Royal Purple Max Boost Octane Booster - 16 oz. - Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz. - Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce --- ## 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.fr/products/81055775-royal-purple-max-boost-octane-booster-16-oz](https://www.desertcart.fr/products/81055775-royal-purple-max-boost-octane-booster-16-oz) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-04-28*