I HAVE SEVERAL CASES OF 12 PER CASE -1 QT BOTTLES OF GUMOUT DIESEL FUEL CONDITIONER. EACH CONTAINER WILL TREAT 100 GALLONS OF DIESEL FUEL SO A CASE OF 12 CONTAINERS WILL TREAT 1200 GALLONS OF DIESEL FUEL. THIS IS FOR CASE LOTS ONLY AT 24 DOLLARS PER CASE OR 2 DOLLARS PER BOTTLE