STA-BIL Diesel All-Season is an advanced all-year formula for all your diesel additive needs. It cleans and lubricates fuel injectors, provides anti-gel protection down to -40°F, and also boosts cetane. Safe for all diesel engines, it comes packaged in an easy pour, non-slip, 20-oz. bottle that treats up to 150 gallons of fuel.• Advanced year-round formula for all your additive needs• Cleans and lubricates entire fuel system• Demulsifies water• Anti-gel protection down to -40°F• Boosts cetane• Safe for all diesel engines Provides anti-gel protection down to -40°F Boosts cetane 20-oz. bottle treats up to 150 gallons of fuel | Sta-bil Diesel All-Season, 20- Oz