There are synthetic transmission fluids available, such as the Mobil 1 Synthetic ATF and Valvoline ATF +4 transmission fluids. Synthetic transmission fluids are designed to provide durability to transmissions and typically outperform conventional transmission fluid.
Some synthetic transmission fluid is designed to be used with certain brands of vehicles, such as the Valvoline ATF +4 designed for Chrysler, Dodge and Jeep vehicles. Other transmission fluids, such as the Mobil 1 Synthetic ATF is designed for modern high-performance vehicles, SUVs and light trucks. Synthetic transmission fluid is typically separated into automatic or manual transmission use. Some fluids come with a stop-leak additive, designed to help stop leaks in transmissions.