🚗 Keep Your Engine Happy with Sea Foam! Dissolves deposits and cleans injectors for peak performance. No harsh detergents—just pure cleaning power for your engine. Provides high-temp upper cylinder lubricity to protect against wear. Stabilizes fuel for up to 2 years, keeping your engine ready to roar. Works seamlessly with both gas and diesel engines. Petroleum-Based Formula Corrosion Protection 1 Gallon Capacity Sea Foam SF128 Motor Treatment is a powerful 1-gallon solution designed to clean and protect your engine's fuel system. It effectively dissolves fuel deposits, stabilizes stored fuel for up to two years, and provides essential lubrication, all while being gentle on your engine with its petroleum-based formula.