Fuel Treatment, Ethanol, Container Size 32 oz. , Size/Net Weight 32 oz. , Blue/Green, Bottle, Transparent, Treats 320 Gallons Dilution Ratio, Boiling Point 180 F, Flash Point 173 F, 0. 9 Specific Gravity, For Use With Ethanol Engines
- PREVENTS CORROSION – STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer is the ultimate treatment and protection against ethanol blended fuels. This formula contains PEA fuel system cleaners, and it removes water from your gas tank which prevents gum, varnish, rust, and corrosion from appearing.
- IMPROVES PERFORMANCE – By combating the effects of harsh marine climates, this fuel additive helps to clean your fuel system. With gasoline pumping through your engine, it is imperative to use this fuel treatment in fresh gas at every fill up in order to ensure your engine is operating at peak performance.
- VERSATILE – STA-BIL 360 Marine is an alcohol-free water remover that is very concentrated, and the 32 oz. bottle can be used to treat up to 320 gallons of fuel. This marine fuel stabilizer keeps fuel fresh up to 12 months, and it is safe for use in your boat, jet ski, and every gasoline-powered watersport engine.
- DIRECTIONS – Bottle Directions: To measure small quantities: remove small cap and seal (on long neck), squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour (measurements on bottle side). Usage Directions: 1 oz (30 mL) treats up to 10 gallons (38 L) of fuel. Recommended for use at every fill up in season for year-round performance and protection.
- SHELF LIFE – All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package! Proudly made in the USA by a family-owned company in Chicago, Illinois.


















Amazon Customer –
It seems to work boat has a 200-gallon tank and never had a problem with the fuel going bad over the winter. Just remember to add 1 oz per 10 gallons during the season and 1 oz per 5 gallons for winter storage.
Carl elder –
Works great for in my boat for winter. Thank you
Frank D. –
It’s a good deal to get the gallon.
G.A.B. –
This is extremely concentrated. More so than the regular Stabil. This is a good buy for someone who winterizes a lot of equipment, such as a dealership or service center. Otherwise buy the smallest container.
Slappified –
Goes a lot further then the standard red version. 1 oz treats 10 gallons so this will last me a long time.
Ray –
With the cost of any repairs, if using this saves me one repair it was worth it. I have switched to only using the marine formula. I started using for the boat but realized the added protection is a good thing.
FlyNavy –
My no nonsense boat mechanic had me switch to this stabilizer (and non-ethanol fuel.) He said it won’t last over 1 year, but will do well for 6-8 months.
Richard –
I use the Marine 360 for treating my gas that I use in all my small engine equipment (lawnmower, edgers, blowers, chainsaws, etc.). I find that the Marine 360 helps to prevent damage to the carburetors from the ethanol that is added in gas.