PRI-G Fuel Stabilizer- 6 PACK CASE UNIT - Each Gallon Size Unit Treats 2040 Gallons of Fuel 1- 6 bottle Case of PRI-G 1 Gallon size units for gasoline = 6 gallons PRI improves ignition quality of your fuel by improving combustion efficiency Provides better fuel ecomony - 8 to 15% Each 128 ounce botttle. Treats up to 2040 gallons of gasoline PRI-G is a fuel stabilizer that preserves stored fuels in refinery fresh condition for years.