Fresh-gasoline storage treatment
Measure using the Storage formula rate
Choose package quantity by fuel volume
Choose the 32 oz gasoline stabilizer when a quart-size purchase suits the fresh fuel you plan to store. At the documented rate, total-container capacity is up to 80 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
Essential protection for winter boat storage
Added this STA-BIL 32oz fuel stabilizer to my boat's gas tank before off-season storage. It keeps the fuel fresh for up to 24 months and prevents varnish buildup in the carburetors. Fired up on the first crank in the spring with zero issues.
Easy measuring bottle and great value
The 32oz squeeze bottle with the built-in measuring dispenser makes treating precise gallons super clean and easy. MPN 22214 is a staple item for my outboard and lawn equipment. Highly recommended for keeping fuel fresh.
Fast shipping from Mariner's Warehouse
Ordered the 32oz STA-BIL fuel additive from Mariner's Warehouse and it arrived well-packaged within a few days. Prevents phase separation in ethanol-blended gas and keeps my marine engine running smoothly all season long.
No more clogged fuel jets or stale gasoline
I treat every tank of fuel with this product. It stops gum and sludge from forming inside the fuel lines and injectors. Makes off-season layups completely hassle-free for all 2-stroke and 4-stroke marine engines.
Reliable fuel treatment for peace of mind
Used this in my 150 HP Yamaha outboard before letting it sit for four months. Engine started up smoothly with no hesitation or smoke. Always keep a 32oz bottle on my workshop shelf.
Works great for both ethanol and non-ethanol gas
Great performance from STA-BIL as expected. Protects the internal fuel system components against corrosion and moisture build-up. The price on Mariner's Warehouse was the best I found online.
Top-notch stabilizer for all marine engines
Takes the worry out of leaving fuel in the tank during long periods of non-use. Easy to pour, accurate dosage markers, and protects the engine reliably every time.
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 32 oz gasoline stabilizer when a quart-size purchase suits the fresh fuel you plan to store. At the documented rate, total-container capacity is up to 80 US gallons. This is calculated total capacity across treatment events, not a single-tank dose.
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