STA-BIL Fuel Stabilizer for Storage 1 Gallon — Keeps Gasoline Fresh up to 24 Months, Corrosion Protection

STA-BIL Storage is a professional-grade fuel stabilizer in a 1‑gallon bottle designed to keep gasoline fresh for up to 24 months and protect fuel systems during storage.

If you put vehicles, boats, lawn mowers, snow blowers, or generators into seasonal storage, degraded fuel and corrosion can cause hard starts and costly repairs. STA-BIL Storage uses a balanced blend of antioxidants, corrosion inhibitors, and detergents formulated specifically to preserve both ethanol and non-ethanol gasoline. The product is concentrated for treating large volumes and is commonly used by homeowners, fleet managers, and outdoor equipment technicians who need reliable long-term fuel protection.

How long will STA-BIL Storage keep my gasoline usable?

When dosed correctly, STA-BIL Storage preserves gasoline up to 24 months, maintaining combustion quality and preventing varnish and gum buildup. That extended life is useful for off-season equipment and emergency fuel reserves. For best results, add the product before filling the tank, then run the engine briefly to circulate treated fuel.

• Treats gasoline to remain stable for up to 24 months when used at labeled rates.
• Effective with ethanol-blended and non-ethanol fuels to minimize deposit formation.
• Concentrated 1 oz per 2.5 gallons dosing for economical long-term protection.

Will this protect my engine and fuel system from corrosion?

Yes — STA-BIL Storage includes anti-corrosive additives that form a protective barrier inside the fuel tank and fuel system components. That protection helps reduce oxidation and water-induced rust, which can damage carburetors, injectors, and fuel lines over time. Regular use during storage cycles reduces the chance of costly component replacement.

• Contains corrosion inhibitors tailored to preserve metal and rubber parts in fuel systems.
• Shields against ethanol-related phase separation and water contamination effects.
• Helps maintain seals, gaskets, and injectors by minimizing deposit formation.

How do I use STA-BIL Storage for best results?

Measure and pour the stabilizer directly into the fuel tank before adding gasoline, using the recommended 1 ounce per 2.5 gallons ratio. After filling, run the engine for about five minutes so the treated fuel reaches the entire system. Follow the printed expiration guidance—product is effective up to two years after opening and up to five years from production when stored properly.

• Pour into tank first, then add fuel to ensure complete mixing.
• Run the engine for ~5 minutes to circulate treated fuel through the system.
• Check the date code on the bottle: two years after opening, five years from production.

Does STA-BIL Storage work with all types of engines?

STA-BIL Storage is formulated to protect a wide range of gasoline-powered equipment, from small two-stroke tools to modern fuel-injected engines. It’s compatible with most materials found in fuel systems and is used across consumer and commercial applications. Avoid mixing with diesel fuels; use only for gasoline applications as directed.

• Designed for cars, motorcycles, boats, lawn and garden equipment, and generators.
• Compatible with both carbureted and fuel-injected systems using gasoline.
• Not intended for diesel—choose a diesel-specific stabilizer for diesel engines.

Who is this for: STA-BIL Storage 1 Gallon is intended for homeowners, seasonal equipment owners, marina operators, and fleet managers who want a dependable, concentrated solution to keep gasoline fresh during storage, prevent corrosion, and ensure easier starts when equipment is returned to service. It’s especially useful when storing multiple machines or maintaining a fuel supply for emergency use.