Specially formulated for methanol use, Reduced friction and better protection from corrosion associated with the use of methanol fuel. Many top engine builders, carburetor builders and injection system suppliers use and recommended these products. Five versions are offered that have the same lubricating properties but vary in features such as color, scent and name. The scented Top Lubes contain a low dose of fragrance and in order to get the full impact it is recommended that you use a bottle of Fuel Fragrance in combination with the Top Lube of your choice. Each 16 ounce bottle of Top Lube treats 55 gallons of methanol.