Fresh-gasoline storage treatment
Measure using the Storage formula rate
Choose package quantity by fuel volume
Choose the 1-gallon gasoline stabilizer when a larger purchase quantity suits your storage plans. At the documented rate, total-container capacity is up to 320 US gallons. Seasonal equipment often remains unused with fuel still in the system. A gasoline storage fuel stabilizer is intended for that storage-planning task, helping limit fuel deterioration and gum or varnish formation when used as directed. Add it to fresh fuel rather than relying on it to restore fuel that is already badly degraded.
Choose a package by the amount of gasoline you intend to treat over time. The treatment rate is different from the Marine formula and from diesel treatment, so measure using this product’s own directions. A larger container provides more additive; it does not change the dose or extend the stated protection period.
Before lay-up, check the fuel type approved for the equipment and follow the engine manufacturer’s storage procedure. Fuel-system treatment and internal engine preservation are separate maintenance tasks. A stabilizer is not a reason to skip other required storage steps or to use an otherwise unapproved fuel blend.
Keep a record of the treatment date, amount of fuel and measured additive. Reclose the container according to its label after use. Compare package sizes using current prices and your planned fuel quantity rather than assuming the entire container belongs in one tank.
Clear Product Details
Review the 16 oz gel format, specifications and application directions.
Surface Guidance
Check fiberglass, gelcoat and finish suitability before use.
Product Support
Ask about your surface and stain type before ordering.
Shipping & Returns
Review shipping information and return conditions before purchase.
FUEL & ENGINE CARE GUIDE
Plan the Correct Gasoline Storage Fuel Stabilizer Task
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Start with Fresh Fuel
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Measure the Volume
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Use the Storage Rate
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Circulate as Permitted
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Record the Treatment
Compare the Formula, Package and Maintenance Task
Fuel Treatment & Engine Care Selection Guides
What Customers Say
Great bulk size for treating large boat tanks
Buying the 1-gallon jug of STA-BIL (MPN 22213) is much more economical for treating my 100-gallon marine fuel tank. Keeps the gasoline fresh for up to 2 years and prevents varnish buildup over the winter layup. A must-have for large vessel owners.
Economical and effective for seasonal storage
I treat both my outboard boat tank and lawn equipment fuel cans from this gallon container. It prevents phase separation with ethanol fuel blends and ensures easy seasonal startups every spring.
Fast shipping and secure packaging
Ordered from Mariner's Warehouse and the gallon jug arrived quickly with no leaks or damage. STA-BIL is the trusted standard for preventing gum and sludge in fuel lines.
Essential for keeping marine fuel fresh
I've used STA-BIL fuel stabilizer for years on my twin-engine boat. The 1-gallon size offers the best value per ounce. No clogged fuel injectors or gummed-up carburetors after sitting for months.
Reliable protection against ethanol issues
Prevents corrosion and moisture buildup in gas tanks caused by ethanol-blended fuels. Easy to measure out and mix directly into the deck fill before storing the boat.
Best value for multi-vehicle & marine use
Having a full gallon on hand makes pre-winter fuel treatment quick and worry-free. Protects internal engine components and preserves fuel quality throughout long periods of non-use.
First-crank starts every spring
Flawless performance every time. Added this gallon stabilizer before parking the boat for four months, and it fired right up without stuttering or smoked fuel.
Frequently Asked Questions
Is this intended for gasoline or diesel?
This is the gasoline storage formula. Select the diesel-specific product for diesel fuel.
What dose does the manufacturer specify?
The rate is 1 US fl oz per 2.5 US gallons of fresh gasoline. Follow the supplied label.
How long is the manufacturer-stated protection?
The manufacturer states up to 24 months when used as directed with fresh fuel.
Can it restore badly degraded fuel?
Do not assume so. This storage treatment is intended to be added to fresh gasoline.
Is the dose the same as Marine treatment?
No. The marine product has a different rate. Use the directions for the exact formula.
Should I run the engine after treatment?
The product directions specify five minutes. Follow your equipment’s operating and storage instructions, including marine cooling requirements.
Does a larger container change the dose?
No. Container quantity changes total treatment capacity, not the dose per gallon.
How much can this package treat?
Choose the 1-gallon gasoline stabilizer when a larger purchase quantity suits your storage plans. At the documented rate, total-container capacity is up to 320 US gallons. This is calculated total capacity across treatment events, not a single-tank dose.
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