Medallion Plus^® Multi-Purpose Automatic Transmission Fluid (ATF) provides the highest possible heat and oxidation protection for automatic transmissions of automobiles and light duty trucks. It is the one fluid you need for most applications, allowing you to reduce the number of products you need to inventory.Medallion Plus Multi-Purpose ATF offers excellent low temperature performance and improved protection against high temperature deposits in heavy duty service. It has excellent corrosion and rust preventive properties, as well as rigid anti-foam characteristics. It will not cause excessive seal swell or shrinkage, nor will seals excessively harden or soften.