Shell Donax TC – Premium transmission fluid for caterpillar Powershift transmissions –caterpillar TO-4 approved 1.31
Shell Donax
Shell Donax TC was specifically designed for modern Caterpillar transmissions. It provides excellent compatibility with transmission components and premium frictional characteristics to maximize equipment performance.
Applications:
• Shell Donax TC is specifically designed for Caterpillar transmissions with Variable Capacity Torque Convertors (VCTC), which are more sensitive to fluid quality
• It is also recommended for torque convertors, hoists brakes and hydraulic systems lubricated from a common sump, which are typically found in 777B, 785 and 789 series offhighway trucks
• Shell Donax TC exceeds the requirements of Caterpillar TO-2 and TO-4 for powershift transmissions
• Shell Donax TC 10W and 30 are Allison C-3/C-4 approved
Advantages:
• Improved Transmission Life – a key factor limiting transmission life in modern equipment is the compatibility of new friction materials such as F-37 and Rayflex with engine oils
• Active nitrogen containing components commonly found in many engine oils, can cause these friction materials to become brittle and break up resulting in reduced transmission life. Shell Donax TC is formulated without aggressive nitrogen containing components to ensure maximum life of clutch
frictional materials
• Superior Frictional Characteristics – improved efficiency
– a second concern being encountered with newer transmissions, particularly in transmissions with VCTC’s, is the phenomenon of “torque convertor stall”. Effectively the clutch slips at heavy loads limiting the performance of the equipment. Shell Donax TC is specially balanced formulation with frictional characteristics to help consistently maximize the output of your equipment, particularly when moving heavy loads
• Versatility – Shell Donax TC is formulated as an SAE 10W, 30,and 50 to provide you with seasonal flexibility. These oils are not formulated with Viscosity Index Improvers and hence comply with Caterpillar’s lubrication recommendations. (Multi-graded oils are no longer recommended for powershift transmissions by Caterpillar)
