Quantity of (8) Bottles: Howes - 32 oz. Treat Diesel Fuel Conditioner & Anti-Gel, Reduces the cold filter plugging point of your base fuel by an average of 20 degrees, Provides superior cold weather protection and is safe and effective on all diesel and biodiesel blends up to B-20, prevents fuel from gelling, increases power and fuel economy. Treatment ratio above 0 degrees Fahrenheit ounces to gallons and less than 0 degrees Fahrenheit from 1 ounce to 2.5 gallons, guaranteed to prevent gelling. Made in the USA