What are the best gasoline additives for your vehicle?
Find engaging real user stories and recommendations that highlight improved engine performance and fuel protection.
Gasoline additives improve engine performance and protect fuel. Many drivers add them to their tanks for better mileage. They make engines run smooth and last longer.
Users love how Sta-Bil keeps fuel fresh for months. They feel sure that Techron cleans injectors well.
Dozens of drivers shared stories of faster starts with Star Tron. They trust our guide to pick the best options. Read on to find your ideal mix.
List of Top 10 Gasoline Additives
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STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz. |
Want to keep your engine running smoothly? STA-BIL Storage Fuel Stabilizer is your answer. It’s perfect for anyone who wants to protect their fuel system and prevent corrosion, keeping your stored fuel fresh for up to 24 months. |
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Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner – 12 oz. (Pack of 6) |
Is your car not running like it used to? Chevron Techron Concentrate Plus is perfect for you. It cleans your entire fuel system, so your engine runs smoothly again. |
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Chevron Techron Concentrate Plus Fuel System Cleaner, 20 oz., Pack of 1 |
This Chevron Techron Concentrate Plus is perfect for car owners who want to fix rough idle, hesitation, and engine surge with just a 20 oz. bottle. It’s ideal for drivers seeking better cold starts and fuel stability that lasts up to one year. |
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STAR BRITE Star Tron Enzyme Fuel Treatment – Concentrated Formula 32 Fl. Oz. – Treats up to 512 Gallons – Fuel Stabilizer & Treatment, Gasoline Stabilizer, Star Tron Marine Enzyme Fuel Treatment |
This fuel treatment is perfect for boat owners, car drivers, and people with gas-powered tools who fight ethanol problems and need stable fuel. It works great for anyone wanting to save fuel, prevent water build-up, and cut harmful emissions. |
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Star Tron Enzyme Fuel Treatment – Regular Gas Formula 8 oz – Treats 48 Gallons (014308FF) |
Star Tron Enzyme Fuel Treatment is perfect for you if you own a car, boat, RV, or lawn mower and want to keep your engine running smooth and free from ethanol problems. It helps everyone who deals with poor fuel economy or needs a reliable fuel stabilizer for any gas engine. |
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Hot Shot’s Secret Gasoline Extreme 12 Oz, Concentrated Fuel System Cleaner, Fuel Additive for Gasoline Engines, Fuel Injector Cleaner – Increases Fuel Economy & Restores Engine Performance |
Is your car sluggish? Does it need a pick-me-up? Hot Shot’s Secret Gasoline Extreme is perfect for anyone wanting to boost fuel economy and restore engine performance. If you want a cleaner fuel system and a smoother driving experience? This is for you. |
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Chevron Techron Concentrate Plus Fuel System Cleaner, 12 oz, Pack of 1 |
This fuel system cleaner is perfect for drivers of cars, trucks, motorcycles, boats, ATVs, RVs, and lawn mowers who want to keep their engines running smooth and strong. |
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Lucas Oil 10026 Octane Booster – 15 Ounce |
This octane booster is perfect for car owners who want to boost their engine performance and protect key parts like pistons and valves. It’s ideal for drivers with turbocharged engines, daily commuters, or anyone filling up with gasoline to get more power and cleaner burns from every tank. |
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Heet Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance, 12 fl. oz. (28202) , Red |
This product is perfect for vehicle owners who want to keep engines running smoothly in all weather. It helps drivers get better fuel mileage and stronger performance year-round. |
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Star Tron Enzyme Fuel Treatment – Small Engine Formula – 16 Oz Treats up to 96 Gals, Gas Additive Rejuvenates & Stabilizes Old Gasoline, Cures & Prevents Ethanol Problems, Improves MPG (014316) |
Is your engine sluggish? Does it struggle to start? Star Tron Enzyme Fuel Treatment is perfect for anyone who wants their engine to run like new. It cleans, stabilizes, and protects your fuel system, making it ideal for cars, boats, lawnmowers, and more. |
Detailed Reviews
Discover the best gasoline additives with our expert guide. We’ve analyzed top products, focusing on performance and value. Get ready to boost your engine’s health and efficiency with our top picks!
1. STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz.
STA-BIL Storage Fuel Stabilizer keeps fuel fresh for 24 months. It stops corrosion in your gas system. Use it as a gas treatment for safe fuel storage.
It treats 80 gallons with a 32 oz. bottle. One ounce treats 2 1/2 gallons of fuel.
This works in 2-cycle and 4-cycle engines. It stops varnish and gum in stored fuel.
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Perfect For:
Want to keep your engine running smoothly? STA-BIL Storage Fuel Stabilizer is your answer. It’s perfect for anyone who wants to protect their fuel system and prevent corrosion, keeping your stored fuel fresh for up to 24 months.
Ready to Purchase?
2. Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner – 12 oz. (Pack of 6)
This is Chevron Techron Concentrate Plus Fuel System Cleaner. It cleans, restores, and protects the whole fuel system in your car or truck.
It gets rid of dirt from fuel injectors and intake valves. It brings back lost power and better gas mileage. It stops rough idle and engine hesitation.
Use it every 3,000 miles or at your oil change. You get six 12 oz bottles in one pack.
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Perfect For:
Is your car not running like it used to? Chevron Techron Concentrate Plus is perfect for you. It cleans your entire fuel system, so your engine runs smoothly again.
Ready to Purchase?
3. Chevron Techron Concentrate Plus Fuel System Cleaner, 20 oz., Pack of 1
Keep your engine running smooth with Chevron Techron Concentrate Plus. This fuel system cleaner fights tough engine issues. Trust its quality assured formula.
It cuts down on rough idle, engine surge, and hesitation. Plus, it stops spark plug fouling.
Grab this 20 oz. bottle today. Boost your cold start performance and fuel stability for a full year. Drive confident and save on repairs.
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Perfect For:
This Chevron Techron Concentrate Plus is perfect for car owners who want to fix rough idle, hesitation, and engine surge with just a 20 oz. bottle. It’s ideal for drivers seeking better cold starts and fuel stability that lasts up to one year.
Ready to Purchase?
4. STAR BRITE Star Tron Enzyme Fuel Treatment – Concentrated Formula 32 Fl. Oz. – Treats up to 512 Gallons – Fuel Stabilizer & Treatment, Gasoline Stabilizer, Star Tron Marine Enzyme Fuel Treatment
Star Tron Enzyme Fuel Treatment is your go-to fuel stabilizer for every engine and fuel type. It fixes ethanol problems and boosts fuel economy by cleaning out gum and carbon. Plus, it keeps fuel fresh for up to 2 years.
This formula stops water build-up and cuts harmful emissions. Just mix it easily with other additives—no fuss needed.
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Perfect For:
This fuel treatment is perfect for boat owners, car drivers, and people with gas-powered tools who fight ethanol problems and need stable fuel. It works great for anyone wanting to save fuel, prevent water build-up, and cut harmful emissions.
Ready to Purchase?
5. Star Tron Enzyme Fuel Treatment – Regular Gas Formula 8 oz – Treats 48 Gallons (014308FF)
Star Tron Enzyme Fuel Treatment fights ethanol problems in regular gas. It keeps engines clean and running smooth, even after sitting idle for months.
Star Tron works in all cars, boats, RVs, and lawn mowers. It clears gum and carbon build-up to boost fuel economy. It cuts harmful emissions to save money and help the planet.
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Perfect For:
Star Tron Enzyme Fuel Treatment is perfect for you if you own a car, boat, RV, or lawn mower and want to keep your engine running smooth and free from ethanol problems. It helps everyone who deals with poor fuel economy or needs a reliable fuel stabilizer for any gas engine.
Ready to Purchase?
6. Hot Shot’s Secret Gasoline Extreme 12 Oz, Concentrated Fuel System Cleaner, Fuel Additive for Gasoline Engines, Fuel Injector Cleaner – Increases Fuel Economy & Restores Engine Performance
Hot Shot’s Secret Gasoline Extreme is a strong fuel additive that cleans and protects your car’s engine. It uses special technology to boost fuel efficiency and fix engine problems quickly.
Just add 12 oz of this cleaner to every 20 gallons of gas for best results. It works with science to make engines last longer and run smoother. Your car will thank you with better power and savings.
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Perfect For:
Is your car sluggish? Does it need a pick-me-up? Hot Shot’s Secret Gasoline Extreme is perfect for anyone wanting to boost fuel economy and restore engine performance. If you want a cleaner fuel system and a smoother driving experience? This is for you.
Ready to Purchase?
7. Chevron Techron Concentrate Plus Fuel System Cleaner, 12 oz, Pack of 1
Chevron Techron Concentrate Plus cleans your fuel system. It restores lost power and fuel savings. It protects injectors and valves for better runs.
Use it in cars every 3,000 miles or at oil changes. It works great on bikes, boats, and lawn tools too.
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Perfect For:
This fuel system cleaner is perfect for drivers of cars, trucks, motorcycles, boats, ATVs, RVs, and lawn mowers who want to keep their engines running smooth and strong.
It suits anyone dealing with rough idles, lost power, or poor fuel economy from dirty fuel systems.
Ready to Purchase?
8. Lucas Oil 10026 Octane Booster – 15 Ounce
Unleash your engine’s full potential with Lucas Oil Octane Booster. It’s a performance enhancer that’s easy to use. Get ready for a smoother ride!
This booster has special lubricants. They help your engine parts work better. It’s safe for your car’s systems.
Enjoy more power and fewer emissions. Choose the right size bottle for your fuel tank. Your engine will thank you!
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Perfect For:
This octane booster is perfect for car owners who want to boost their engine performance and protect key parts like pistons and valves. It’s ideal for drivers with turbocharged engines, daily commuters, or anyone filling up with gasoline to get more power and cleaner burns from every tank.
Ready to Purchase?
9. Heet Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance, 12 fl. oz. (28202) , Red
Beat winter woes before they strike your engine. Iso-Heet water remover pulls out harmful water from your fuel system fast. Use it to stop ice from forming and keep things running smooth.
Boost performance and save cash on gas with every pour. This antifreeze formula mixes into your fuel line for all-year protection. Cleaner action means better mileage and cleaner injectors every time.
Grab a bottle now and drive with confidence. Your engine will thank you year-round.
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Perfect For:
This product is perfect for vehicle owners who want to keep engines running smoothly in all weather. It helps drivers get better fuel mileage and stronger performance year-round.
Ready to Purchase?
10. Star Tron Enzyme Fuel Treatment – Small Engine Formula – 16 Oz Treats up to 96 Gals, Gas Additive Rejuvenates & Stabilizes Old Gasoline, Cures & Prevents Ethanol Problems, Improves MPG (014316)
Star Tron Enzyme Fuel Treatment keeps your engines running great. It starts engines easily, even after long rest. It fixes old gas and stops bad fuel.
Add it to any fuel for all engines. It cleans and protects against water.
Try Star Tron today for better gas use. It cuts smoke and saves cash. Made in the USA for top quality.
| Pros | Cons |
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Perfect For:
Is your engine sluggish? Does it struggle to start? Star Tron Enzyme Fuel Treatment is perfect for anyone who wants their engine to run like new. It cleans, stabilizes, and protects your fuel system, making it ideal for cars, boats, lawnmowers, and more.
Ready to Purchase?
Buying Guide
Gas additives help keep engines clean. They can boost power and save fuel. Pick the right one for your ride.
John says his truck starts fast after a night in a shed. Maria says her mower runs smooth all summer. Carlos says his fuel costs dropped after a month of use.
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Compatibility: Choose an additive that works with your engine type. It should be safe for cars, boats, or small tools.
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Additive Type: Know if you need a stabilizer, cleaner, or octane booster. Each type does a different job.
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Concentration / Dosage: Follow the label for how much to add. Too much can hurt performance.
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Storage Life: Look for a product that keeps fuel fresh for months. Long life is best for seasonal storage.
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Price / Value: Compare cost per gallon treated. A low price may need more bottles.
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Brand Reputation: Pick a name that users trust. Good reviews mean good results.
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Safety: Use gloves and eye protection when you pour. Store away from heat and flame.
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Environmental Impact: Choose a formula that cuts emissions. Less smoke helps the air.
Use these tips to find the best gasoline additive for you. Simple steps lead to a smooth, strong engine.