10 Best Stored Fuel Stabilizers for Mega Savings

Want the best stored fuel stabilizers? We’ve compiled a list of top products based on expert reviews and real user experiences to help you choose the perfect one.

Storing fuel can lead to problems like corrosion and bad starts. Fuel stabilizers solve these issues by keeping gas fresh. Products like STA-BIL and STAR BRITE work well for this.
Users have shared real stories of easy engine starts after months of storage. These stabilizers help prevent rust and keep equipment ready.
Our guide picks the best options based on expert reviews and user feedback. You can trust our advice to find the right stabilizer for your needs. This list of top products will save you time and money.
Get ready to protect your engines and fuels for longer. These reliable choices make storage simple and worry-free. Check out the details to choose the perfect one.

List of Top 10 Stored Fuel Stabilizers

Image Title Best For Price
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, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz.

This fuel stabilizer is perfect for people who store vehicles, boats, lawn mowers, or generators for long periods. It protects against ethanol corrosion and keeps gasoline fresh for up to 24 months.

STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage, 8 oz. STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage, 8 oz.

This fuel stabilizer is perfect for anyone who stores cars, boats, lawnmowers, or other equipment for a long time. It keeps gasoline fresh and makes starting easy whenever you need it.

STAR BRITE PRO Star Gasoline Stabilizer - Fog & Protect Stored Engines & Entire Fuel System from Corrosion - Keep Gas Fresh for up to 1 Year - EZ Store EZ Start - 16 OZ (084316) STAR BRITE PRO Star Gasoline Stabilizer – Fog & Protect Stored Engines & Entire Fuel System from Corrosion – Keep Gas Fresh for up to 1 Year – EZ Store EZ Start – 16 OZ (084316)

This is perfect for anyone who wants to keep their engine in top shape. It’s super easy to use and protects your engine while it’s stored!

STA-BIL Fuel Stabilizer - 16oz STA-BIL Fuel Stabilizer – 16oz

Perfect for cars. Great for boats and small tools that sit still.

STAR BRITE PRO Star Gasoline Stabilizer - Fog & Protect Stored Engines & Entire Fuel System from Corrosion - Keep Gas Fresh for up to 1 Year - EZ Store EZ Start - 32 OZ (084332) STAR BRITE PRO Star Gasoline Stabilizer – Fog & Protect Stored Engines & Entire Fuel System from Corrosion – Keep Gas Fresh for up to 1 Year – EZ Store EZ Start – 32 OZ (084332)

This gasoline stabilizer is perfect for boat owners who store their inboard or outboard gasoline engines for months or a year. It helps people who want to keep fuel fresh, stop rust in tanks and pipes, and start their engine with ease later on.

Mercury Marine 12oz Quickstor Fuel Stabilizer Treatment 92-8M0047932 Mercury Marine 12oz Quickstor Fuel Stabilizer Treatment 92-8M0047932

Do you need to store your engine for a while? Then Mercury Marine Quickstor is perfect for you. This fuel stabilizer keeps your fuel fresh for up to a year. It also prevents nasty gunk from forming. It’s also safe for all engines, even those with catalytic converters.

Ethanol Shield Fuel Stabilizer 1 Gallon (128 oz) Prevents Corrosion - Gasoline Treatment That Protects Fuel System- Fuel Saver - Treats up to 1280 Gallons. Ethanol Shield Fuel Stabilizer 1 Gallon (128 oz) Prevents Corrosion – Gasoline Treatment That Protects Fuel System- Fuel Saver – Treats up to 1280 Gallons.

Ethanol Shield Fuel Stabilizer is perfect for boaters, RV owners, and anyone with equipment that sits idle for long times. It helps farmers, gardeners, and outdoor workers keep their engines running smooth and strong.

STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer - Prevents Rust and Corrosion, Helps Clean Fuel System For Improved In-Season Performance, Treats Up To 320 Gallons, 32oz (22240) , Blue STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer – Prevents Rust and Corrosion, Helps Clean Fuel System For Improved In-Season Performance, Treats Up To 320 Gallons, 32oz (22240) , Blue

This fuel treatment is perfect for boat owners who want to keep their engines running smooth and protect against ethanol problems. It helps prevent rust, clean the fuel system, and boost performance for better rides on the water.

STA-BIL 22208 Fuel Stabilizer - 8 oz. Size: 8 Fl. oz., Model: 22208, Outdoor/Garden Store, Repair & Hardware STA-BIL 22208 Fuel Stabilizer – 8 oz. Size: 8 Fl. oz., Model: 22208, Outdoor/Garden Store, Repair & Hardware

Want to keep your engine running smoothly? This STA-BIL Fuel Stabilizer is perfect for anyone who stores gasoline-powered equipment. It’s the simple way to protect your investments.

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 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

Perfect for anyone with gas engines or tools—cars, boats, mowers, and generators. It works with all fuels, stops ethanol trouble, and keeps engines clean for better performance and fuel use.

Detailed Reviews

Looking for the best fuel stabilizer? We’ve gathered the top 10 products just for you. Fuel stabilizers keep your engine in tip-top shape. Read on to find the perfect fuel friend!

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, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz.

The STA-BIL Storage Fuel Stabilizer keeps fuel fresh for 24 months. It helps stop corrosion from ethanol fuels.
The 32 oz bottle treats up to 80 gallons of fuel and replaces Cub Cadet 22216 and 22287. One ounce treats about 2 1/2 gallons.
Keeps stored fuel fresh.
Prevents varnish and gum deposits.
Works in 2-cycle and 4-cycle engines.

Pros Cons
  • Keeps fuel fresh for up to 24 months.
  • Prevents harmful corrosion in your engine.
  • Works with both 2-cycle and 4-cycle engines.
  • Easy to use: treats up to 80 gallons with 32 oz.
  • Protects your fuel system from varnish and gum.
  • May not completely eliminate all fuel issues.
  • Requires proper measurement for effectiveness.
  • Storage fuel may still degrade over time.

Perfect For:

This fuel stabilizer is perfect for people who store vehicles, boats, lawn mowers, or generators for long periods. It protects against ethanol corrosion and keeps gasoline fresh for up to 24 months.

Ready to Purchase?

2. STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage, 8 oz.

STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage, 8 oz.

Keep fuel fresh with STA-BIL Storage. It preserves gasoline for up to 24 months. Easy starts for stored equipment.

Prevents corrosion of engines and fuel systems. It fights rust and keeps parts clean.

Pour into the gas tank before adding gasoline. Use 1 oz per 2.5 gallons. Then run the engine for 5 minutes.

Pros Cons
  • Keeps gasoline fresh for 24 months.
  • Prevents corrosion in fuel systems.
  • Ensures easy engine starts after storage.
  • Protects all types of engines.
  • Ranked as America’s top fuel stabilizer.
  • Requires running engine for 5 minutes after adding.
  • Must measure exactly 1 oz per 2.5 gallons of gas.
  • Expires 2 years once opened.

Perfect For:

This fuel stabilizer is perfect for anyone who stores cars, boats, lawnmowers, or other equipment for a long time. It keeps gasoline fresh and makes starting easy whenever you need it.

Ready to Purchase?

3. STAR BRITE PRO Star Gasoline Stabilizer – Fog & Protect Stored Engines & Entire Fuel System from Corrosion – Keep Gas Fresh for up to 1 Year – EZ Store EZ Start – 16 OZ (084316)

STAR BRITE PRO Star Gasoline Stabilizer - Fog & Protect Stored Engines & Entire Fuel System from Corrosion - Keep Gas Fresh for up to 1 Year - EZ Store EZ Start - 16 OZ (084316)

The STAR BRITE PRO Star Gasoline Stabilizer keeps your engine and fuel system safe from corrosion for up to one year. It works as an all-in-one treatment that stabilizes fuel and fogs the engine in one easy step.

Just add 1 ounce per 5 gallons of gas, fill the tank, and run the engine for 10 minutes to protect everything simply. This product fits all gas types, even ethanol blends, so it’s ready for any fuel you use.

Trust the Star brite name for quality made in the USA since 1973. Grab a bottle today to keep your engine fresh and ready. Take action now to protect your gear.

Pros Cons
  • All-in-one care for engines saves you time and hassle.
  • Easy to add – just mix and run for quick protection.
  • Stops rust in fuels and parts to keep things running.
  • Works with all gas types, including ethanol blends.
  • Guards during storage for up to 1 year of ready power.
  • Only for gasoline engines, not for diesel.
  • Must run engine for 10 minutes to mix.
  • Small 16 OZ bottle may not last long.

Perfect For:

This is perfect for anyone who wants to keep their engine in top shape. It’s super easy to use and protects your engine while it’s stored!

Ready to Purchase?

4. STA-BIL Fuel Stabilizer – 16oz

STA-BIL Fuel Stabilizer - 16oz

STA-BIL Fuel Stabilizer keeps your fuel fresh and ready. This 16oz bottle is a great product for easy use.

Add it to your tank with no hassle. It stops fuel from going bad. Keep your engine running smooth.

Pros Cons
  • Stops engine fuel troubles quickly.
  • Keeps fuel fresh for months.
  • Fights rust and bad smells.
  • Saves money on repairs.
  • Easy to add to gas tanks.
  • Higher price for small size limits value.
  • Needs proper mixing or engine damage occurs.
  • Not ideal for very old fuel tanks.

Perfect For:

Perfect for cars. Great for boats and small tools that sit still.

Ready to Purchase?

5. STAR BRITE PRO Star Gasoline Stabilizer – Fog & Protect Stored Engines & Entire Fuel System from Corrosion – Keep Gas Fresh for up to 1 Year – EZ Store EZ Start – 32 OZ (084332)

STAR BRITE PRO Star Gasoline Stabilizer - Fog & Protect Stored Engines & Entire Fuel System from Corrosion - Keep Gas Fresh for up to 1 Year - EZ Store EZ Start - 32 OZ (084332)

Say goodbye to engine woes. STAR BRITE PRO Star Gasoline Stabilizer keeps fuel fresh for up to one year. It shields engines during storage too.

This stuff protects your boat’s gas and parts. One bottle does the stabilizing and fogging. Mix it in, and relax all winter long.

Fit for inboard and outboard engines, it stops corrosion. Grab yours now and ensure easy starts. Try it on your next adventure.

Pros Cons
  • Keep gas fresh for up to one year.
  • Prevent corrosion in fuel tank and system.
  • Protect engines during long-term storage.
  • Stabilize and fog in one easy step.
  • Works great on inboard and outboard engines.
  • Limited quantity of 32 OZ may not suffice for big boats.
  • Gasoline-only formula won’t protect diesel engines.
  • Expect higher costs if applied frequently for extended storage.

Perfect For:

This gasoline stabilizer is perfect for boat owners who store their inboard or outboard gasoline engines for months or a year. It helps people who want to keep fuel fresh, stop rust in tanks and pipes, and start their engine with ease later on.

Ready to Purchase?

6. Mercury Marine 12oz Quickstor Fuel Stabilizer Treatment 92-8M0047932

Mercury Marine 12oz Quickstor Fuel Stabilizer Treatment 92-8M0047932

Quickstor fuel stabilizer keeps your gas fresh and ready. One 12-ounce bottle treats up to 60 gallons of fuel. Add it before you store your boat for long trips.

It stops fuel from breaking down over time. Gum and varnish won’t build up in key parts.

This stuff works for regular gas and ethanol blends. It’s safe for engines with catalysts. Grab a bottle to save your motor now.

Pros Cons
  • Helps fuel stay fresh for up to a year.
  • Prevents gum and varnish in fuel lines.
  • Treats up to 60 gallons per bottle.
  • Stabilizes fuel for long-term storage.
  • Safe for catalyzed engines.
  • Doesn’t fix old fuel problems.
  • Needs exact measuring for best results.
  • May cause mild smells in tanks.

Perfect For:

Do you need to store your engine for a while? Then Mercury Marine Quickstor is perfect for you. This fuel stabilizer keeps your fuel fresh for up to a year. It also prevents nasty gunk from forming. It’s also safe for all engines, even those with catalytic converters.

Ready to Purchase?

7. Ethanol Shield Fuel Stabilizer 1 Gallon (128 oz) Prevents Corrosion – Gasoline Treatment That Protects Fuel System- Fuel Saver – Treats up to 1280 Gallons.

Ethanol Shield Fuel Stabilizer 1 Gallon (128 oz) Prevents Corrosion - Gasoline Treatment That Protects Fuel System- Fuel Saver - Treats up to 1280 Gallons.

Tired of fuel problems? Ethanol Shield Fuel Stabilizer is here to help! It protects your engine and fuel system.

This fuel stabilizer works in all engines. It also prevents water issues.

Your fuel will stay stable for up to 3 years. It’s easy to use. Protect your engine today!

Pros Cons
  • Fuel lasts longer: Stabilizes gas for up to 3 years.
  • Engine stays safe: Stops ethanol damage and costly repairs.
  • Works everywhere: Protects all 2 and 4-cycle engines.
  • Stops water trouble: Guards against rust and fixes hoses.
  • Proven strength: Tested and used by top makers.
  • Expensive for small engines needing little fuel.
  • Won’t fix old engine damage.
  • Requires careful measurement to avoid overuse.

Perfect For:

Ethanol Shield Fuel Stabilizer is perfect for boaters, RV owners, and anyone with equipment that sits idle for long times. It helps farmers, gardeners, and outdoor workers keep their engines running smooth and strong.

Ready to Purchase?

8. STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer – Prevents Rust and Corrosion, Helps Clean Fuel System For Improved In-Season Performance, Treats Up To 320 Gallons, 32oz (22240) , Blue

STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer - Prevents Rust and Corrosion, Helps Clean Fuel System For Improved In-Season Performance, Treats Up To 320 Gallons, 32oz (22240) , Blue

STA-BIL 360 Marine treats fuel. It cleans the fuel system. It fights rust and removes gum.

PEA additives cleanse the fuel system, including injectors, lines, and pumps. It removes water, varnish, and gum and helps prevent corrosion.

Pour into the fuel tank before you fill up, using 1 oz per 10 gallons. Run the engine for 5 minutes to treat the entire system, and pair it with STA-BIL Storage for year-round protection.

Pros Cons
  • Cleans your entire fuel system to remove gum and varnish.
  • Protects against rust and corrosion for better engine life.
  • Boosts engine power and gas mileage for smoother rides.
  • Stabilizes fuel when your boat sits idle.
  • Easy to use—just pour in and drive.
  • Limited coverage up to 320 gallons.
  • Must pour before fill into tank.
  • Does not fix existing fuel issues.

Perfect For:

This fuel treatment is perfect for boat owners who want to keep their engines running smooth and protect against ethanol problems. It helps prevent rust, clean the fuel system, and boost performance for better rides on the water.

Ready to Purchase?

9. STA-BIL 22208 Fuel Stabilizer – 8 oz. Size: 8 Fl. oz., Model: 22208, Outdoor/Garden Store, Repair & Hardware

STA-BIL 22208 Fuel Stabilizer - 8 oz. Size: 8 Fl. oz., Model: 22208, Outdoor/Garden Store, Repair & Hardware

STA-BIL Fuel Stabilizer keeps your gas fresh for up to 24 months. Just add a little to your tank and say goodbye to stale fuel.
This product stops gum and varnish from building up. It works with all types of gasoline, even those with ethanol blends.
You can start your engine quickly after long storage. No need to drain the fuel first. Get your STA-BIL today to protect your equipment.

Pros Cons
  • Keeps fuel fresh for up to 24 months.
  • Eliminates the need to drain fuel before storage.
  • Ensures quick starts after storage.
  • Prevents gum and varnish buildup.
  • Works with all gasoline, including Ethanol blends.
  • Only for gasoline, not diesel fuels
  • Requires proper dosing for effectiveness
  • Adds cost for long-term storage

Perfect For:

Want to keep your engine running smoothly? This STA-BIL Fuel Stabilizer is perfect for anyone who stores gasoline-powered equipment. It’s the simple way to protect your investments.

Ready to Purchase?

10. 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 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 BRITE Star Tron is an ALL-ROUND ENGINE SOLUTION. The concentrated 32 oz bottle treats up to 512 gallons. It works in all engines and fuels.

It’s a ETHANOL PROBLEM SOLVER for common fuel issues. No exact measurement is needed.

It’s an OLD FUEL REVITALIZER that stabilizes fuel for up to 2 years. It can rejuvenate old fuel after months of inactivity. It disperses water and reduces gum, varnish, and emissions.

Pros Cons
  • All-fuel protection for engines and tools
  • Ethanol issues solved for smooth running
  • Old fuel reviver for stale gas
  • Gum and varnish removal boosts economy
  • Water control keeps fuel clean
  • May not fix all engine problems, just fuel-related ones.
  • Requires regular use to maintain best results.
  • Results May Vary Based On Engine Wear.

Perfect For:

Perfect for anyone with gas engines or tools—cars, boats, mowers, and generators. It works with all fuels, stops ethanol trouble, and keeps engines clean for better performance and fuel use.

Ready to Purchase?

Buying Guide

Storing fuel can cause issues like bad starts and corrosion. Fuel stabilizers keep gas fresh and prevent these problems.
Many users shared stories of easy engine starts after long storage. One boat owner said their motor fired right up after six months using STA-BIL. Another lawn mower user praised STAR BRITE for no rust in their fuel system.
Here are factors to consider when buying fuel stabilizers.
Storage Time Protection: Look for products that keep fuel fresh for months or years. STA-BIL works for 24 months in storage. This helps avoid bad starts when using again.
Corrosion Prevention: Choose stabilizers that stop rust in fuel systems. They protect engines from ethanol damage. This keeps parts like injectors clean.
Engine and Fuel Types: Pick ones that work in gasoline and ethanol blends. They suit 2-cycle and 4-cycle engines. This fits most boats and lawn tools.
Dosage and Ease of Use: Check how much to add per gallon. Add it before filling the tank. Run the engine briefly to mix it in.
Bottle Size and Capacity: See how many gallons it treats. A 32 oz bottle handles large tanks. Bottles last for multiple uses.
Additional Features: Some products also clean gum and varnish. Others prevent water buildup. These make storage worry-free.
Brand Trust: Go for known brands like STA-BIL or STAR BRITE. They have good reviews. This ensures quality and safety.
Price and Value: Compare costs based on treatment amount. A big bottle saves money long-term. Check deals for the best buys.