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Octane Boosters

10 Best Octane Boosters 2025 in the United States

#1

Winner

9.9 score

STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12

STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12

STP

9.9 score

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The STP Octane Booster is designed to enhance your vehicle's performance by boosting its octane rating and cleaning the fuel intake system. One of its key strengths is its dual-function formula, which not only increases octane but also restores power and acceleration. This can be particularly beneficial for drivers looking to improve engine efficiency and reduce knocking or pinging sounds, often associated with lower-quality fuel.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Octane Rating Increase
Immediate improvement in vehicle responsiveness and acceleration.
Compatibility
Effective for small engines, making them run like new again.
#2
9.8 score

Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow

Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow

Bar's Leaks

9.8 score

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The Rislone 4747-12PK Super Concentrated Octane Booster is designed for automotive enthusiasts looking to enhance engine performance and prevent knocking caused by low-quality fuel. One of its major strengths is its ability to increase octane ratings by over 20 points, which can significantly improve horsepower and engine efficiency. This makes it particularly beneficial for drivers of various fuel-injected and carbureted engines, including those with supercharged or turbocharged setups. Its compatibility with multiple fuel types, including unleaded gasoline and ethanol blends, adds to its versatility, as users won’t have to worry about whether it will work with their specific fuel type. Furthermore, the product's formulation is safe for catalytic converters and oxygen sensors, which is a crucial consideration for many car owners concerned about potential damage to their vehicles.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Octane Rating Increase
Works great for older vehicles, eliminating engine pinging with regular use.
#3
9.7 score

BOOSTane Professional Octane Booster, Formulated to Increase Octane for High-Performance Race Engines, 32oz (1 Pack)

BOOSTane Professional Octane Booster, Formulated to Increase Octane for High-Performance Race Engines, 32oz (1 Pack)

BOOSTane

9.7 score

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BOOSTane Professional Octane Booster is a strong contender in the octane-boosters category, particularly for high-performance race engines. One of its standout features is its ability to increase octane levels up to 116, which is particularly beneficial for professional racers and enthusiasts looking to maximize engine performance without resorting to expensive racing fuels. Its formulation is compatible with both naturally aspirated and forced induction engines, making it versatile for various high-performance setups. Additionally, the product includes anti-corrosion properties that help protect engines against ethanol and carbon buildup, which is a common concern among performance vehicle owners.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Octane Rating Increase
Effectively boosts octane, eliminating post-ignition issues in high-performance engines.
Concentration and Dosage
Easy to use with excellent product support, making it simple to achieve the desired octane mix.

Top 10 Best Octane Boosters 2025 in the United States

#1

Winner

9.9 score

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STP

STP Octane Booster, Fuel Intake System Cleaner, Bottles, 5.25 Fl Oz, Pack of 12

Octane Rating Increase: boosting octane rating
Compatibility: works with cap-less gas systems
Additive Package: dual-function formula
Concentration and Dosage: 12 bottles
Brand Reputation: STP

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Chosen by 1346 this week

#2

9.8 score

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Bar's Leaks

Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow

Octane Rating Increase: over 20 points
Compatibility: fuel-injected, carbureted, supercharged, turbocharged, unleaded, ethanol
Additive Package: safe for catalytic converters, sensors
Concentration and Dosage: treats up to 20 gallons
Brand Reputation: Rislone

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#3

9.7 score

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BOOSTane

BOOSTane Professional Octane Booster, Formulated to Increase Octane for High-Performance Race Engines, 32oz (1 Pack)

Octane Rating Increase: up to 116
Compatibility: naturally aspirated and forced induction
Additive Package: anti-corrosion properties
Brand Reputation: solid reputation

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#4

9.6 score

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Lucas Oil

Lucas Oil 10026 Octane Booster - 15 Ounce

Octane Rating Increase: 3 times more boost
Compatibility: fuel-injected and carbureted engines
Additive Package: lubricants that protect engine components
Concentration and Dosage: 15 oz. treats 25 gallons
Brand Reputation: solid reputation in automotive industry

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33% OFF
#5

9.5 score

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Klotz

Klotz Higher Octane Booster Fuel Treatment Power Booster and Cleaner for Gasoline – 1 Gallon KL-628

Octane Rating Increase: improves engine performance
Compatibility: gasoline, ethanol blends, 2-stroke, 4-stroke
Additive Package: Tetraethyl lead substitute, added lubricity
Concentration and Dosage: 128 ml per bottle
Brand Reputation: well-regarded in automotive industry

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5% OFF

Related Products

#6

9.3 score

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BOOSTane

BOOSTane Premium Octane Booster 16oz, Anti Corrosion Against Ethanol, All Internal Combustion Engines, hot rods, Classics, Performance (1 Pack)

Octane Rating Increase: up to 8 points
Compatibility: all internal combustion engines
Additive Package: anti-corrosion feature
Concentration and Dosage: requires careful attention
Brand Reputation: BOOSTane

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#7

9.0 score

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K&N

K&N Performance+ Octane Booster: Boosts Octane and Improves Engine Performance, 16 Ounce Bottle Treats up to 18 Gallons, 99-2020

Octane Rating Increase: Treats up to 18 gallons
Compatibility: Safe with catalytic converters, oxygen sensors
Additive Package: Boosts octane, cleans fuel injectors
Concentration and Dosage: Treats up to 18 gallons
Brand Reputation: K&N Engineering, quality automotive products

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#8

8.7 score

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Johnsen's

Johnsen's 4688-8-12PK Octane Booster - 6 Oz., (Pack of 12)

Octane Rating Increase: raise octane rating
Concentration and Dosage: 6 oz bottle, 12 pack
Brand Reputation: Johnsen's

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#9

8.5 score

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Royal Purple

Royal Purple Max Boost Octane Booster - 16 oz.

Octane Rating Increase: up to 30 points
Compatibility: vehicle-specific
Additive Package: replaces lead additives
Brand Reputation: ROYAL PURPLE

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#10

8.2 score

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Lucas Oil

Lucas Oil Products 10930-24 Octane Booster, 126 fl. oz, 1 Pack

Octane Rating Increase: high
Compatibility: fuel-injected, carbureted engines, turbos, sensors
Additive Package: more boost than other brands
Concentration and Dosage: follow manufacturer's guidelines
Brand Reputation: Lucas Oil

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Buying Guide for the Best Octane Boosters

Choosing the right octane booster for your vehicle can significantly improve its performance, fuel efficiency, and overall engine health. Octane boosters are additives that increase the octane rating of your fuel, which can help prevent engine knocking and pinging, especially in high-performance or older engines. When selecting an octane booster, it's important to understand the key specifications and how they align with your vehicle's needs and your driving habits.
Octane Rating IncreaseThe octane rating increase indicates how much the booster will raise the octane level of your fuel. This is important because higher octane fuel can prevent engine knocking and improve performance, especially in high-compression engines. Octane boosters typically offer increases ranging from a few points to over 10 points. If you have a high-performance vehicle or experience knocking with regular fuel, you may need a booster with a higher octane increase. For everyday driving in standard vehicles, a moderate increase should suffice.
CompatibilityCompatibility refers to whether the octane booster is suitable for your type of engine and fuel system. This is crucial because using an incompatible product can cause damage or reduce efficiency. Some boosters are designed specifically for gasoline engines, while others may be suitable for both gasoline and diesel engines. Additionally, certain boosters are formulated for use with specific fuel types, such as ethanol blends. Check your vehicle's manual and the product label to ensure compatibility with your engine and fuel type.
Additive PackageThe additive package includes additional chemicals that can provide extra benefits beyond just increasing the octane rating. These additives can include detergents to clean the fuel system, lubricants to protect engine components, and stabilizers to extend fuel shelf life. This is important because a well-rounded additive package can enhance overall engine performance and longevity. If you are looking for comprehensive engine care, choose a booster with a robust additive package. For specific needs, such as cleaning the fuel system, look for boosters with targeted additives.
Concentration and DosageConcentration and dosage refer to the amount of octane booster needed per gallon of fuel to achieve the desired octane increase. This is important for cost-effectiveness and ease of use. Boosters with higher concentrations require smaller doses, making them more convenient and potentially more economical. If you prefer a hassle-free experience, opt for a highly concentrated booster that requires less frequent dosing. For occasional use or specific performance needs, a standard concentration may be sufficient.
Brand ReputationBrand reputation reflects the reliability and effectiveness of the octane booster, based on user reviews and industry standards. This is important because reputable brands are more likely to produce high-quality, consistent products that deliver on their promises. Researching and choosing a well-known brand with positive reviews can help ensure you get a product that works well and is safe for your engine. If you are new to using octane boosters, starting with a trusted brand can provide peace of mind and better results.

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