PREVENTS ETHANOL DAMAGE – STA-BIL 360 Protection Ethanol Treatment & Fuel Stabilizer prevents corrosion caused by ethanol blended fuel. Effective in all gasoline blends, including ethanol and non-ethanol, this product helps increase engine power and fuel efficiency.

What do ethanol stabilizers do?

Fuel stabilizer keeps gasoline, especially gas with ethanol (E10, E15), from going bad in a vehicle being stored for a half-year or more.

Do fuel stabilizers really work?

Fuel stabilizers keep fuel fresh and effective for at least two years of storage time. … Old fuel can also leave gummy deposits behind in sensitive areas of the motor. The bottom line is trouble, unless you let a fuel stabilizer prevent it. This stuff really works.