It is important to give your machine the best care by supplying our Ultra1Plus™ Transmission Fluid SAE 50 Full Synthetic Manual (CD-50) is a fully synthetic power-shift heavy-duty transmission fluid specially formulated for heavy-duty manual transmissions requiring a non-EP oil in severe service conditions and extended drain applications. Offering exceptional transmission friction performance, smooth brake operation, gear/bearing wear protection, and increased equipment life, Ultra1Plus™ Transmission Fluid SAE 50 Full Synthetic Manual (CD-50) is formulated from synthetic base stocks with high viscosity-index and low pour point, providing superior all-climate, year-round performance. It also contains an anti-wear additive, as well as rust, oxidation and corrosion inhibitors to protect vital transmission parts in severe heat and conditions.