Cat® TDTO-TMS is a proprietary transmission and drive train oil developed, tested, and approved by Caterpillar to deliver peak performance and unmatched protection. Engineered to meet the same rigorous standards as all Genuine Cat Parts, this advanced formulation helps extend component life by reducing wear on transmission gears. It enhances cold-weather performance, particularly in electronically controlled machines, ensuring smoother operation and improved efficiency. With optimized wear life for gears, bearings, and friction disc materials, Cat TDTO-TMS supports long-lasting reliability. Plus, its versatility across multiple compartments and extended drain intervals means fewer oil changes—saving time, reducing costs, and simplifying maintenance.