AMSOIL Inc. has re-positioned two of its synthetic automatic transmission fluids to be included in the company’s Signature Series family – the AMSOIL Multi-Vehicle Synthetic Automatic Transmission Fluid and AMSOIL Fuel-Efficient Synthetic Automatic Transmission Fluid. Signature Series ATF provides high and low temperature performance and oxidation stability. In addition, AMSOIL Synthetic ATF is formulated to improve fuel efficiency, reduce transmission temperatures and increase equipment life.