How much fuel does one 10 oz bottle treat?

At the recommended 1 oz per 2.5 gallons, a 10 oz bottle treats about 25 gallons. Measure with the bottle's markings rather than guessing.

Is it worth it compared with draining the tank?

For most stored engines, yes. It costs under $8 and saves the work of draining and disposing of fuel, and it protects carburetors from gum and varnish.

Does it work with ethanol fuel?

Yes. STA-BIL Storage is formulated for all gasoline types, including ethanol and non-ethanol blends, and for regular or higher octane.

How long does treated fuel stay fresh?

STA-BIL rates it for up to 24 months of storage. Add it before the fuel sits, not after, so it mixes through the tank.

Can I use it in a diesel engine?

No. This is a gasoline stabilizer. Diesel equipment needs a diesel-specific treatment.

The best new price we track is $7.78 at eBay as of November 4, 2026. Prices at the other five stores run higher, so compare before buying.

Where is the STA-BIL Storage Fuel Stabilizer cheapest?

At eBay, for $7.78, as of our latest check.

What do buyers say about the STA-BIL Storage Fuel Stabilizer?

Rated 4.8 out of 5 from 165 ratings.

Where can I buy the STA-BIL Storage Fuel Stabilizer?

6 stores we checked sell it, including eBay, Amazon, First Choice Marine, Denver True Value, Home Central.

STA-BIL Storage Fuel Stabilizer

4.8

Best price now

$7.78at eBayObserved at 4:07 PM

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit eBay

STA-BIL Storage Fuel Stabilizer

4.8

Best price now

$7.78at eBayObserved at 4:07 PM

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit eBay

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Our take on the STA-BIL Storage Fuel Stabilizer

STA-BIL Storage is a gasoline additive that keeps fuel fresh for up to 24 months in stored vehicles, boats, generators, motorcycles and small engines. It prevents gum and varnish buildup so engines start after long idle periods, and it works in ethanol and non-ethanol gas. The 10 oz bottle treats 25 gallons at the 1 oz to 2.5 gallon dose. At $7.78 at eBay as of November 4, 2026, it is the lowest of the six new prices we track.

Best forStoring a car, boat or motorcycle for monthsSeasonal generators and snowblowersSmall engines that sit between usesEthanol-blend fuel in long-term storage

Pros

Keeps gas fresh for up to 24 months
Prevents gum and varnish in carburetors and fuel systems
Works with ethanol and non-ethanol gasoline
10 oz treats about 25 gallons, so one bottle covers a season
No draining needed before storage

Cons

Only for gasoline engines, not diesel
One bottle is small for large tanks or multiple vehicles
Overdosing adds cost without extra benefit
Does not fix fuel that has already gone bad

STA-BIL Storage Fuel Stabilizer prices at every store

eBayNew
In stockSold by firstchoicemarine
$7.78Observed at 4:07 PM
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Denver True ValueNew
In stock
$7.79Observed at 4:06 PM
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First Choice MarineNew
In stock
$7.78+ $12.15 shippingObserved at 4:06 PM
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WalmartNew
In stockSold by First Choice Marine
$25.26+ $8.95 shippingObserved at 4:06 PM
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Home CentralNew
Availability unknown
$7.79Free shippingObserved at 4:06 PM
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AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$9.29Observed at 4:07 PM
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Also available at

eBayCheck price at eBay
WalmartCheck price at Walmart

STA-BIL Storage Fuel Stabilizer price history

Lowest price we've seen: $7.78 on Nov 4 at eBay. Tracked across 6 stores since Nov 4.

What reviewers say

Owners rate it 4.8 out of 5 across 165 ratings, and the common theme is engines starting easily after months of storage. It is widely used for mowers, generators and boats over winter.

Pros

Engines start after long storage
Trusted brand for seasonal equipment
Easy to measure and pour
Works in ethanol gas

Cons

Small bottle goes fast with big tanks
Price varies a lot between stores

From eBay

10 fl oz bottle

Guarantee: eBay Money Back Guarantee: get the item you ordered or your money back
Returns: 30 days returns; seller pays for return shipping
Shipping: USPS Ground Advantage; located in Grain Valley, Missouri, United States
In the box: Sta-Bil Fuel Stabilizer 10 oz #22206

About the STA-BIL Storage Fuel Stabilizer

Are you planning to store fuel the right way? STA-BIL Storage Fuel Stabilizer is your key to maintaining freshness in stored gasoline for up to 24 months. This superior additive is engineered to ensure your machinery, including vehicles, motorcycles, small engines, boats, and generators, is ready to perform after periods of idleness. It eliminates the hassle of draining fuel before storage by preventing gum and varnish buildup, which ensures hassle-free starts. Effective for use in all gasoline types, such as ethanol and non-ethanol blends, STA-BIL Storage is an indispensable solution for all gasoline engines. The convenient 10 fl. oz. bottle makes treating your fuel straightforward, maintaining potency whether dealing with standard octane levels or higher. Treat all your storage needs with the confidence that comes from using an industry-leading product.

Specifications

color: RedSource
size: 10 ozSource
Container size: 10 ozSource
Net content: 10 ozSource
Container type

Questions and answers

How much fuel does one 10 oz bottle treat?: At the recommended 1 oz per 2.5 gallons, a 10 oz bottle treats about 25 gallons. Measure with the bottle's markings rather than guessing.
Is it worth it compared with draining the tank?: For most stored engines, yes. It costs under $8 and saves the work of draining and disposing of fuel, and it protects carburetors from gum and varnish.
Does it work with ethanol fuel?: Yes. STA-BIL Storage is formulated for all gasoline types, including ethanol and non-ethanol blends, and for regular or higher octane.
How long does treated fuel stay fresh?: STA-BIL rates it for up to 24 months of storage. Add it before the fuel sits, not after, so it mixes through the tank.
Can I use it in a diesel engine?: No. This is a gasoline stabilizer. Diesel equipment needs a diesel-specific treatment.
When is it cheapest?: The best new price we track is $7.78 at eBay as of November 4, 2026. Prices at the other five stores run higher, so compare before buying.
Where is the STA-BIL Storage Fuel Stabilizer cheapest?: At eBay, for $7.78, as of our latest check.
What do buyers say about the STA-BIL Storage Fuel Stabilizer?: Rated 4.8 out of 5 from 165 ratings.
Where can I buy the STA-BIL Storage Fuel Stabilizer?: 6 stores we checked sell it, including eBay, Amazon, First Choice Marine, Denver True Value, Home Central.