Sta-Bil STAB22240 Marine Formula Fuel Stabilizer 32 oz

The Sta-Bil Marine Formula 360 Ethanol Treatment & Fuel Stabilizer (32 oz) is a professional-grade fuel additive engineered specifically for the demanding conditions of marine environments. Formulated to combat the harmful effects of ethanol-blended fuels, this concentrated treatment protects the entire fuel system with every fill-up — not just during seasonal storage.

This 32 oz bottle treats up to 320 gallons of fuel, making it an economical choice for regular use throughout the boating season. Simply add 1 oz per 10 gallons directly to the fuel tank prior to fill-up, then run the engine for approximately 5 minutes to circulate the treatment through the complete fuel system.

Key Features:

• More than 4x the fuel system cleaner compared to regular Sta-Bil — removes power-robbing deposits from fuel lines, carburetors, fuel injectors, and intake valves
• Double the corrosion preventers found in standard Sta-Bil Fuel Stabilizer
• Prevents corrosion caused by moisture and ethanol-induced water attraction
• Keeps ethanol suspended in fuel to prevent phase separation and water absorption
• Stabilizes fuel for up to 12 months during storage (when added to fresh fuel)
• Optimizes fuel performance for improved combustion efficiency and engine power
• Safe for use in all 2-cycle and 4-cycle gasoline engines, including gasoline/oil mixtures and all ethanol blends up to E85
• Compatible with all inboard and outboard marine engines, boats, and personal watercraft
• Also suitable for stored or infrequently used vehicles including snowmobiles, motorcycles, lawnmowers, tractors, RVs, and collector cars
• Quick-measure, easy-pour bottle design

Marine Formula Sta-Bil is ideal for year-round protection in frequently used marine equipment, and for winterization storage applications. For winterization, double the dosage to 2 oz per 5 gallons of fuel. Over-treatment up to 3x the recommended dose is safe and will not harm the engine or fuel system components.