
STP
STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack...
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Category: Automotive > Oils & Fluids > Additives > Fuel System > Octane Boosters
Check Price on AmazonHighlights
- 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)
Product Overview
Key Features
- 2-in-1 Octane Booster and Fuel System Cleaner: This product combines MMT and Synthetic Technology to both raise octane levels and clean your fuel intake system in one bottle.
- Compatible with All Gasoline Engines: Works seamlessly with modern cap-less fuel systems and traditional gas tanks.
- Reduces Engine Knock and Pinging: The MMT additive raises octane levels to minimize combustion chamber deposits that cause knocking.
- Improves Fuel Efficiency: Helps optimize fuel combustion and reduce engine strain for better MPG.
- Easy to Use: Simply pour the entire 5.25 fl oz bottle into your gas tank; one bottle treats up to 15 gallons of gasoline.
Pros
- Affordable and convenient 2-in-1 formula that addresses both octane boosting and fuel system cleaning
- Compatible with all gasoline engines, including modern cap-less fuel systems
- Noticeable improvement in engine performance and smoother acceleration for many users
- Easy application with no special equipment required
Cons
- Results can be inconsistent depending on driving habits and fuel quality, with some users reporting minimal improvement
- Requires regular use with every fill-up for optimal benefits, which adds ongoing costs
Detailed Reviews
STP Octane Booster is a practical fuel additive designed for drivers looking to restore lost engine performance and improve fuel efficiency without breaking the bank. The product's dual-action formula works by raising octane levels through MMT technology while simultaneously cleaning fuel intake systems with synthetic compounds, which helps reduce knocking, improve combustion efficiency, and enhance acceleration. Real-world usage shows that most drivers notice smoother performance and slightly better MPG when using the product consistently, though results vary based on existing fuel quality and engine condition. This product is best suited for drivers with older vehicles experiencing knock or ping, those using lower-octane fuel, or anyone looking for an affordable maintenance solution to keep their fuel system clean.
Verdict: STP Octane Booster offers solid value as a budget-friendly 2-in-1 fuel additive that delivers noticeable performance improvements for most users. While results aren't dramatic and require consistent use, it's a reliable choice for routine fuel system maintenance and mild performance enhancement.
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Product Specs
| Specification | Details |
|---|---|
| Manufacturer | STP |
| Brand | STP |
| Model | 78574-12PK |
| Item Weight | 4.8 ounces |
| Product Dimensions | 2.27 x 1.45 x 7.86 inches |
| Item model number | 18040G-12PK |
| Manufacturer Part Number | 78574-12PK |
| ASIN | B008YFI636 |
| Date First Available | August 16, 2012 |






