--- product_id: 5838928 title: "STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12" price: "€ 89.40" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.be/products/5838928-stp-octane-booster-fuel-intake-system-cleaner-bottles-5-25 store_origin: BE region: Belgium --- # Boosts octane up to +2 points Improves MPG by up to 5% Cleans fuel intake system for smoother engine STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12 **Price:** € 89.40 **Availability:** ✅ In Stock ## Summary > ⛽ Unlock your engine’s hidden horsepower and never settle for sluggish again! ## Quick Answers - **What is this?** STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12 - **How much does it cost?** € 89.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/5838928-stp-octane-booster-fuel-intake-system-cleaner-bottles-5-25) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Engine Detox:** Advanced fuel intake cleaner clears deposits for smoother acceleration and peak performance - • **Easy Routine Boost:** One 5.25 oz bottle treats up to 15 gallons—just add with every fill-up for consistent gains - • **Power-Up Your Ride:** MMT + Synthetic Tech boosts octane to reduce engine knock and restore lost horsepower - • **Fuel Efficiency Hack:** Optimizes combustion to improve miles per gallon, saving you money at the pump - • **Universal Compatibility:** Works seamlessly with all gasoline engines, including cap-less fuel systems ## Overview STP Octane Booster is a premium 2-in-1 fuel additive combining MMT and Synthetic Technology to raise octane levels, reduce engine knocking, and clean the fuel intake system. Compatible with all gasoline engines including cap-less systems, it enhances fuel flow and combustion efficiency, resulting in smoother acceleration, increased horsepower, and improved fuel economy. Each 5.25 fl oz bottle treats up to 15 gallons of gasoline and is designed for regular use with every fill-up to maintain peak engine performance. ## Description Give your engine the boost it needs with STP Octane Booster for Gasoline, a 2-in-1 fuel additive featuring MMT + Synthetic Technology to boost octane and clean the fuel intake system, restoring lost power and acceleration. This fuel treatment is compatible with all gasoline engines, including cap-less gas systems. MMT, a powerful gas additive, raises octane levels to reduce knocking and pinging caused by combustion chamber deposits, which can increase your engine’s need for higher-octane fuel. The Synthetic Technology in this gas treatment helps clean the fuel intake system, improving fuel flow and combustion efficiency for smoother acceleration and increased horsepower. Made with jet fuel, a high-quality carrier of active ingredients, STP Octane Booster helps improve MPG by optimizing fuel use and reducing engine strain. Use the gasoline additive regularly when you fill up your tank. Simply pour the entire contents in your gas tank before or after fueling. One 5.25 fl oz bottle treats up to 15 gallons of gasoline. Unleash your engine's true potential with STP Octane Booster. Review: It works. - I usually just put regular in my F-150 5.0 and every once in in a great while I would hear that telltale pinging. My truck is a daily driver and I get a little over 17 miles per gallon After adding a bottle I can't make it ping on regular so it works as advertised with my truck. For fun one v weekend I added 2 bottles of this and 2 bottles of another brand that starts with an L to about 29gal of just bought super and 3gal of regular gas that was already in the tank. The truck ran like a beast. It would downshift sooner than it ever had and it ran better than when it was brand new. After running through all that fuel and filling the tank up with regular it took about 40 or 50 miles before the computer turned the truck back into a lazy slow shifting slacker. Review: Good product, good price. Would buy again - Good product, good price. Would buy again ## Features - OCTANE BOOSTER FOR GASOLINE: One 5.25 bottle of STP Octane Booster, a 2-in-1 fuel additive featuring MMT + Synthetic Technology to boost octane and clean the fuel intake system, restoring lost power and acceleration - COMPATIBLE WITH CAP-LESS SYSTEMS: This fuel treatment is compatible with all gasoline engines, including cap-less gas systems - RAISES OCTANE LEVELS: MMT, a powerful gas additive, raises octane levels to reduce knocking and pinging caused by combustion chamber deposits that increase your engine’s need for higher-octane fuel - CLEANS THE FUEL INTAKE SYSTEM: The Synthetic Technology in this gas treatment helps clean the fuel intake system, improving fuel flow and combustion efficiency for smoother acceleration and increased horsepower - HELPS IMPROVE MPG: Made with jet fuel, a high-quality carrier of active ingredients, STP Octane Booster helps improve MPG by optimizing fuel use and reducing engine strain - USE WITH EVERY FILL-UP: Use the gasoline additive regularly when you fill up your tank; simply pour the entire contents in your gas tank before or after fueling (one 5.25 fl oz bottle treats up to 15 gallons of gasoline) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008YFI636 | | Best Sellers Rank | #15,789 in Automotive ( See Top 100 in Automotive ) #7 in Octane Boosters | | Brand | STP | | Customer Reviews | 4.7 4.7 out of 5 stars (715) | | Date First Available | August 16, 2012 | | Is Discontinued By Manufacturer | No | | Item Weight | 4.8 ounces | | Item model number | 18040G-12PK | | Manufacturer | STP | | Manufacturer Part Number | 78574-12PK | | Model | 78574-12PK | | Product Dimensions | 2.27 x 1.45 x 7.86 inches | ## Images ![STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12 - Image 1](https://m.media-amazon.com/images/I/91P2IdiLOuL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Can be used on 2 stroke engines?** A: Thank you for submitting your question! The product is not designed for 2 stroke engines. For any further information please reach out to us on or email us on customersupport@energizer.com and 1-800-383-7323 to assist you better. **Q: Luego de aplicar una botella al tanque, al cuánto tiempo se le vuelve s colocar?** A: es recomendable una vez al mes en la llenada de tanque **Q: This says for light trucks. What about big trucks? I've got an '86 Ford E350, 460 big block, with a carburetor. Needs a good fuel additive cleaner.** A: Thank you for submitting your question! Kindly note that this product is safe for any gasoline engines and is compatible with cap-less gas systems. It fights deposit buildup and helps keep fuel injectors and carburetors clean in vehicles with over 75,000 miles. For any further information please reach out to us at 800-776-1530 or autohelpline@energizer.com to assist you better. STP Consumer Services. Thank you! **Q: Does this help to clean deposits off the intake valves also?** A: I wish I could give you an honest answer I'm using it as a supplement because my cars are from the '80s they seem to be running much better I put one in every time I fill the car up. Unfortunately I have no proof if it helps the intake valves ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works. *by N***Y on November 3, 2020* I usually just put regular in my F-150 5.0 and every once in in a great while I would hear that telltale pinging. My truck is a daily driver and I get a little over 17 miles per gallon After adding a bottle I can't make it ping on regular so it works as advertised with my truck. For fun one v weekend I added 2 bottles of this and 2 bottles of another brand that starts with an L to about 29gal of just bought super and 3gal of regular gas that was already in the tank. The truck ran like a beast. It would downshift sooner than it ever had and it ran better than when it was brand new. After running through all that fuel and filling the tank up with regular it took about 40 or 50 miles before the computer turned the truck back into a lazy slow shifting slacker. ### ⭐⭐⭐⭐⭐ Good product, good price. Would buy again *by P***S on July 2, 2025* Good product, good price. Would buy again ### ⭐⭐⭐⭐⭐ It works, try it *by B***G on May 15, 2025* Really help with mpg, I’m seeing 1-2 mpg increases on my awd sienna using 87 octane. I usually put 91 octane but gas price is higher now. So I have to put 87 octane and add this each tank. ## Frequently Bought Together - STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12 - STP Gas Treatment, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12 - Gumout 510013W-6PK Fuel System Cleaner, 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.be/products/5838928-stp-octane-booster-fuel-intake-system-cleaner-bottles-5-25](https://www.desertcart.be/products/5838928-stp-octane-booster-fuel-intake-system-cleaner-bottles-5-25) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-04-22*