STA-BIL Diesel Power Boost is a combination diesel fuel conditioner and lubricity agent designed as a year-around additive for the fuel system of diesel cars, light trucks, tractors, and marine engines. Contains cetane improver for easier starts and lubricity additives for low sulphur fuel. 20 oz. bottle cleans and treats up to 150 gallons.• The maximum cetane boost available• Boosts cetane up to 7 numbers• Improves fuel economy• Improves available power• Cleans and lubricates entire fuel system• Safe for all diesel engines Contains cetane improver for easier starts Lubricity additives for low sulphur fuel 20-oz. bottle cleans & treats up to 150 gallons | Sta-bil Diesel Power Boost, 20- Oz