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Fuel System Additives

When you’re a project car enthusiast, nothing remains stock…not even the fuel! With Summit Racing Equipment’s huge selection of fuel system additives,...

When you’re a project car enthusiast, nothing remains stock…not even the fuel! With Summit Racing Equipment’s huge selection of fuel system additives, you can safely clean your fuel injectors with fuel system cleaners, stabilize your fuel for storage, boost your octane or cetane levels with an octane booster or a cetane booster, or even change nitromethane fumes into something smelling more pleasant.

Top Brands

Gasoline, diesel fuel, ethanol, nitromethane—no matter what powers your project car or truck, Summit has all the fuel system additive brand names to make it run better from the inside out....

When you’re a project car enthusiast, nothing remains stock…not even the fuel! With Summit Racing Equipment’s huge selection of fuel system additives, you can safely clean your fuel injectors with fuel system cleaners, stabilize your fuel for storage, boost your octane or cetane levels with an octane booster or a cetane booster, or even change nitromethane fumes into something smelling more pleasant.

Top Brands

Gasoline, diesel fuel, ethanol, nitromethane—no matter what powers your project car or truck, Summit has all the fuel system additive brand names to make it run better from the inside out. Shop from trusted brands like Red Line, Sta-Bil, Driven Racing Oils, VP Racing, Lucas Oil, Hot Shot’s Secret, Royal Purple, Sea Foam, Motorcraft, and many more.

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Results 1 - 24 of 117

Torco Unleaded Accelerator

Torco Accelerator is not just another fuel additive--it's simply a race fuel concentrate! With many of the same additives that their winning race fuel possesses, Torco Accelerator is a blend of components that will transform the makeup of premium pump gas to closely resemble race fuel. Torco Unleaded Accelerator features and benefits: * Raises the octane of your fuel * You can customize your blend to fit your needs * Won't harm sensitive O2 sensors or catalytic converters * Multiple high performance applications--street or race car, motorcycle, watercraft, snowmobile, ATV, or UTV, whether carbureted, injected, turbocharged, or supercharged

4.65 out of 5 stars ( 66 )

$33.99

$139.99

Boostane Professional Octane Booster

A lot of additives make claims about what they can do for your performance. BOOSTane is not one of those fuel additives. Utilizing a proprietary, patent pending blend, BOOSTane Professional Octane Booster effectively raises your octane 23 points, to as high 116. This fuel system additive is focused on very high performance tuning and racing applications requiring high octane. Results don't lie, BOOSTane is distributed to every continent on the planet! Tune, dyno, and race with BOOSTane—and you'll see the difference. Turn the pump gas in your tank to a high performance race fuel equivalent! Additional notes: * Will raise your effective octane fuel number 23 points * Use the BOOSTane App to blend exactly to your necessary specifications * Safe for use with catalytic converters and oxygen sensors * Won't settle out of solution and become ineffective in your tank, due to our proprietary carriers * Stabilizes against phase separation from ethanol supplementation (E10) * Works in all internal combustion engines, from powerboats and high performance street cars to motorcycles and ATVs * Naturally aspirated or forced induction * LOWER Compression Engines and 2 Stroke * Proprietary chelated carrier * Anti-corrosion against ethanol * Cleaning agents * Anti-carbon buildup * Not street legal * Available individually or larger quantities

5.0 out of 5 stars ( 5 )

$32.99

$659.80

Power Plus Fuel Fragrances

Power Plus fuel fragrances are designed to eliminate unpleasant exhaust fumes, and the eye, nose, and throat irritation that come with them. Just mix them in with your regular fuel. Safe for all internal combustion engines, they will not inhibit or enhance engine performance. One 4 oz. bottle treats 20 gallons of gasoline or nitro methane, 55 gallons of alcohol/methanol, or 10 gallons of diesel fuel.

4.52 out of 5 stars ( 151 )

$14.99

Race Gas Race Fuel Concentrate

Race Gas race fuel concentrate is designed to blend with pump gasoline—and transform it into high-octane, high-energy, track-grade racing fuel! It contains many chemicals that fall into three primary groups: fuel hydrocarbons, oxygenate, and organometallic compounds. What makes Race Gas race fuel concentrate unique is their patent-pending recipe of these compounds. Two ounces will raise the octane of one gallon of gasoline four full octane numbers. No matter what type of fuel you're using or what octane you desire, this Race Gas race fuel concentrate will help you achieve the blend for your engine's off-road needs.

4.8 out of 5 stars ( 88 )

$21.49

$212.94

Race Gas Ultra Fuel Concentrate

Race Gas Ultra Fuel Concentrate is specifically designed for the requirements of very high compression, boosted, or nitrous engines. When mixed with pump gasoline, it will create racing fuel with octane between 108 and 112. This additive increases the octane, chemical oxygen, and chemical energy of the fuel to equal commercially distilled racing fuel. Order individual cans or a set of six.

4.67 out of 5 stars ( 18 )

$38.49

$230.94

Klotz Synthetic Uplon Fuel Lubricant

Klotz synthetic Uplon fuel lubricant is a top-treat fuel additive that lubricates fuel pumps, conditions seals, protects against fuel system corrosion, and maintains injector cleanliness. Klotz Uplon contributes to reducing upper cylinder friction and improving piston ring seal, both of which maximize engine output. It also contains anti-wear chemistry to protect valves and valve guides from premature wear. The formulation blends with methanol, ethanol, nitromethane, and gasoline. Klotz Uplon is also ideally suited for use in legacy diesel engines (1990's vintage and older). These engines were designed when diesel fuel blends contained higher levels of sulfur, so Klotz Uplon restores the necessary upper cylinder lubricity required by this hardware. Using Klotz Uplon eliminates the need for after-run lubricants.

5.0 out of 5 stars ( 19 )

$11.00

$174.95

Power Plus Top Lube

Power Plus Top Lube is designed to lubricate the upper cylinder walls and fuel system to help eliminate excess wear. Specially formulated for alcohol, nitromethane, gasoline, and diesel use, it will reduce top-end friction, prevent corrosion and gelling, and realize a superior ring seal for more compression and increased horsepower. One 16 oz. bottle treats 55 gallons of methanol, 100 gallons of ethanol, 150 gallons of gasoline, or 250 gallons of diesel fuel.

4.56 out of 5 stars ( 25 )

$14.99

$17.99

Klotz Synthetic Nitro Power Additive

Klotz Synthetic Nitro power additive is a top-treat fuel additive designed to extract maximum horsepower from stock and modified racing engines. Klotz Nitro increases fuel oxygen levels and is particularly effective at optimizing torque at low and mid RPMs. Klotz Nitro is suitable for use in both two-stroke and four-stroke racing engines and will blend with gasoline and alcohol. An increase in carburetor jetting or timing adjustments may be needed when using this product. Klotz Nitro is designed for dedicated racecars and is not intended for on-highway use. This product may not be legal in certain sanctioned motorsports events.

4.6 out of 5 stars ( 10 )

$22.50

$109.95

VP Racing Madditive Octanium Octane Concentrate

VP Racing Madditive Octanium octane concentrate increases your gasoline octane up to 8 numbers. It's blended for off-road racing applications—and improves throttle response and acceleration, while eliminating knocks and pings. Eliminate gum and varnish build-up, clean fuel injectors, and increase horsepower with Madditive Octanium … from the "mad scientists" at VP racing.

4.63 out of 5 stars ( 16 )

$12.74

$24.64

Royal Purple Max-Boost Octane Booster and Fuel System Stabilizer

Royal Purple Max-Boost Octane Booster and Fuel System Stabilizer is a high performance fuel treatment for racing applications. Ready to outperform? Max-Boost will increase gasoline octane, reduce emissions, and enhance engine performance while stabilizing fuel. It is safe for use in leaded and unleaded gasoline, and alternate fuels like gasohol, reformulated gasoline, and all ethanol blends. Royal Purple Max-Boost performance advantages: * Reduces engine knocking and pinging * Raises octane rating up to 30 points or 3 numbers * Restores power and fuel economy * Cleans deposits from fuel injectors * Reduces power loss due to knock-retard in computer controlled vehicles * Replaces lead additives for protection of non-hardened valve seats * Stabilizes fuel

4.78 out of 5 stars ( 32 )

$8.99

Lucas Fuel Treatment

Lucas fuel treatment is formulated for gasoline, diesel, and LPG engines. This fuel treatment does not contain harmful solvents or alcohol. It's a blend of heat-resistant, super-slick oils and additives with high-detergent action that cleans and lubricates the fuel system. Your fuel will burn clearer for greater fuel economy and fewer emissions.

4.96 out of 5 stars ( 263 )

$4.99

$134.06

Red Line SI-1 Complete Fuel System Cleaner

Red Line SI-1 Complete Fuel System Cleaner is a concentrated package of the most powerful high-temperature detergents available to clean gasoline fuel injectors, intake valves, and combustion chambers. This injector and valve detergent can clean injectors to nearly 100 percent efficiency in one treatment. The cleansing effect on injector deposits can raise fuel economy approximately 12 percent or even more, depending on the condition of the injectors. SI-1 also contains detergents and a synthetic upper-cylinder lubricant, which will help clean the intake valves, pollution control valves, combustion chamber deposits, and carburetors. Order individually, in a set of 12 bottles, or in a 5-gallon bucket.

5.0 out of 5 stars ( 38 )

$15.97

$182.06

VP Racing Madditive Octanium Unleaded Concentrate

VP Racing Madditive Octanium Unleaded Concentrate is formulated to provide the biggest octane boost—up to 7 numbers, increasing horsepower. It is safe for use in cars and trucks with both catalytic converters and oxygen sensors. Octanium Unleaded eliminates knocking and pinging, cleans fuel injectors, eliminates gum and varnish build-up, and improves throttle response and acceleration. Additional features: * Lead substitute * Treats up to 10 gallons * Increases octane up to 70 points

4.91 out of 5 stars ( 11 )

$23.49

Hot Shot's Secret Everday Diesel Treatment Fuel System Additive

One treatment of Hot Shot's Secret Everday Diesel Treatment Fuel System Additive with each fill up will keep your diesel powering down the road. This concentrated cetane improver upgrades power and performance in all diesel equipment, increasing fuel and maintenance economy. The stability of fuels will be greatly increased and diesel engines will be kept in a cleaner, more maintenance-free condition. It is recommended for all diesel engines because it is completely ashless and has no adverse effects on engine components. This diesel fuel additive complies with the federal low sulfur content requirements for use in diesel motor vehicles and non-road engines. Features and benefits: * Boosts cetane up to 7 points * Reduces DPF regeneration cycles up to 50 percent * Increases fuel mileage up to 7.3 percent and power by up to 12.5 percent * LX4 Lubricity additive for fuel pump and injectors

4.83 out of 5 stars ( 12 )

$4.79

$369.59

Hot Shot's Secret Diesel Winter Anti-Gel Additive

Hot Shot's Secret Diesel Winter Anti-Gel additive provides "Premium Diesel" qualities to standard diesel fuels in terms of detergency, stability, lubricity, winter operability, and cetane number. Performance benefits: * Greatly improves cold temperature performance * Provide further winter protection against freeze-ups * Contains a powerful cetane improver for quicker cold starts with maximum boost in power and performance * Recommended for ALL diesel engines * Guaranteed -65 degrees F and boosts cetane up to 5 points * Prevents fuel line freeze-ups down to -40 degrees F

Not Yet Reviewed

$5.03

$335.99

Driven Racing Oil Carb Defender Fuel Additive

Driven Racing Oil Carb Defender fuel additive utilizes special corrosion inhibitors to prevent costly repairs and poor performance caused by Ethanol blended gasoline and the moisture it attracts. It also restores performance and protects carburetors from performance-robbing deposits. The additive is designed for the unique needs of carbureted classic and performance vehicles that spend much of their lives in storage between cruises and special events.

5.0 out of 5 stars ( 21 )

$12.97

$77.82

Klotz Synthetic Octane Booster

Klotz synthetic octane booster is a top-treat fuel additive that increases the octane of the base fuel. The elevated octane level improves throttle response, mitigates early detonation, and stabilizes the flame front within the combustion chamber (especially when used in high-compression engines). The formulation also contains chemistry to improve lubricity, cleanliness, and storage stability. This additive is compatible with gasoline or ethanol blends. It is safe for oxygen sensors and catalytic converters, and it does not contain methyl tertiary-butyl ether (MTBE).

4.88 out of 5 stars ( 48 )

$7.50

$58.57

Boostane Premium Octane Booster

BOOSTane Premium Octane Booster is there for your peace of mind. With engines getting more and more horsepower out of smaller and smaller engines, we are becoming increasingly susceptible to the harmful side effects of poor or inadequate fuel quality. Whether you're in an area that only has low-grade fuel, or you have a vehicle that is susceptible to the harmful side effects of ethanol supplementation (E10), BOOSTane Premium is the solution. Harnessing that same innovative, proprietary carrier that BOOSTane built its name on, Premium's formula focuses on fuel restoration and sustainability. Premium is for the person who knows that their Hot Rod was designed around leaded fuel, and needs a little more than what is at the gas station. Or the luxury sports car owner who lives in an area that only has 91 octane, and during the summer needs a few more octane points to protect the vehicle from knocking or loss of performance. Either way, BOOSTane Premium gives those customers the effectiveness, convenience, and of course, peace of mind that their vehicle is safe at every fill up! Additional notes: * 2-stroke and 4-stroke octane booster * Works in all internal combustion engines, from hot rods and classics to luxury automotive and high performance * Convenient portable size for motorcycles, UTVs, ATVs, side by sides, and dirt bikes * Will raise your effective octane fuel number 8 octane numbers! * Use the BOOSTane App to blend exactly to your necessary specifications * Safe for use with catalytic converters and O2 Sensors * LOWER Compression Engines and 2 Stroke * Proprietary chelated carrier * Anti-corrosion against ethanol * Cleaning agents * Anti-carbon buildup * STREET LEGAL * Available individually or in larger quantities

5.0 out of 5 stars ( 3 )

$21.99

$659.70

Royal Purple Max-Clean Fuel System Cleaner & Stabilizer

Royal Purple Max-Clean Fuel System Cleaner & Stabilizer is a state-of-the-art performance fuel system cleaner that maximizes the performance of your fuel system. It restores fuel economy and deeply penetrates and cleans fuel injectors, carburetors, intake valves, and combustion chambers. Max-Clean is EPA/CARB compliant, safe for use in gasoline and diesel engines, and can be used with all ethanol blends or biofuels. It can also be used in both 4-cycle and 2-cycle engines and will not harm vehicle emissions equipment.

4.96 out of 5 stars ( 53 )

$15.99

$65.94

Lucas Octane Booster

Lucas Octane Booster is tested and proven to deliver three times more boost than most other brands. Lucas Octane Booster is a genuine performance enhancer! It can help stop engine knocking, raise MPG in high compression engines, and lubricate piston rings for improved cylinder life. Lucas Octane Booster is not street legal. Features include: * Safe for turbos, oxygen sensors, and catalytic converters * Suitable for use in fuel injected and carbureted engines * Provides more boost than most other brands * Promotes clean fuel burn for fewer emissions

4.85 out of 5 stars ( 40 )

$9.99

$119.99

Driven Racing Oil Injector Defender Fuel Additive

You can fight corrosion, low-quality fuels, and poor fuel stabilization with Driven Racing Oil Injector Defender fuel additives. They're engineered with antioxidants to protect fuel injection systems from harmful deposits, provide longer fuel life, and bring back the roar when you put it to the floor. Recapture your EFI system's power with Driven Racing Oil Injector Defender fuel additives; order the version recommended for your fuel application.

5.0 out of 5 stars ( 4 )

$12.97

$77.82

Lucas Safeguard Ethanol Fuel Conditioner

Lucas Safeguard ethanol fuel conditioner cleans up ethanol issues. Whether you use E-10, E-15, E-85, pure ethanol, or any mixture in between, including gasoline, it can be stabilized to prevent varnish and gum formation. Safeguard cleans injectors, valve seats, combustion chambers, and other critical fuel components. It combats deposits and protects your engine's lubricants from the harmful effects of alcohol combustion. Plus, it's completely soluble in all ethanol fuels, will not harm your filters, and contains effective additives to prevent the rust and corrosion associated with ethanol fuels. Condition your fuel with a product specially formulated for problems with ethanol--Safeguard from Lucas Oil.

5.0 out of 5 stars ( 22 )

$8.99

$148.87

Red Line 85 Plus Diesel Fuel Additive

Designed for use in all diesel engines, Red Line 85 Plus contains extremely powerful lubricants, detergents, seal conditioners, fuel stabilizers, and rust preventatives, but without smoke suppressant. This treatment contains additional cetane improvers, which boost the fuel 5-9 cetane numbers, and additional lubricants, which reduce wear in low-sulfur fuel by 75 percent. This improvement in lubricity and cetane will reduce detonation, assist starting, help reduce smoking, help prevent fuel system wear and leakage, and can provide 5 percent additional power and efficiency.

4.67 out of 5 stars ( 15 )

$12.68

$467.36

Lucas Diesel Deep Clean Fuel System Cleaner

Lucas Diesel Deep Clean fuel system cleaner reduces the cost and hassle of particulate filter maintenance, and is an excellent preventative maintenance product. It causes the fuel to burn much cleaner, thus eliminating a lot of particulate matter that would otherwise go into the exhaust system causing "regens". It also cleans out much of the matter already trapped in the filter, eliminating exhaust backpressure allowing the engine to run easier and cooler, as well as lowering the aggravation and down time associated with particulate filters. Lucas Diesel Deep Clean benefits include: * Reduces particulate matter in filters * Cleans fuel injectors * Restores power loss * Improves acceleration

5.0 out of 5 stars ( 1 )

$16.99

$299.99

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