AMSOIL Synthetic Powershift Transmission Fluids are specifically designed for heavy-duty powershift transmissions. Formulated for extended drain intervals, AMSOIL Synthetic Powershift Transmission Fluids contain top-quality synthetic basestocks and a high level of top-quality additives selected specifically for powershift transmission performance. They offer unmatched transmission friction performance,smooth brakeoperation, reduced gear and bearing wear and increased equipment life. AMSOIL Synthetic Powershift Transmission Fluids extend time between overhauls.