Description & Applications:

Mobiltrans HD Series oils are latest technology products designed to optimise performance of off-highway transmissions, drive trains, and hydraulic systems without the compromises inherent in the mixed-fleet engine oils previously used in these applications. These lubricants are formulated to provide outstanding oxidation stability, elastomer compatibility, corrosion and rust control, and maximum protection against foaming.

The three grades, SAE 10W, 30 and 50, have optimum shear stability and excellent high-temperature/highshear viscosity. The SAE 10W grade has very good low temperature pumpability and a low pour point.

Mobiltrans HD Series lubricants meet Caterpillar's latest TO-4 specification which cannot be satisfied by commercial engine oil technology. This specification supersedes and replaces Caterpillar TO-2 requirements which have been in place since 1977. Whereas Cat TO-2 measured friction retention in bronze clutches only, Cat TO-4 meets very strict friction requirements for bronze as well as three paper and two elastomer disc materials including Viton elastomer. This ensures a markedly extended clutch life and improved transmission slippage control, even during high-load operation on a highly inclined slope at extreme temperatures. The technology provides an optimum balance between static and dynamic friction in a variety of clutch materials used in powershift transmission drive-train clutches, steering clutches, and wet brakes. It also minimises chatter in oil-cooled disc brakes. These attributes provide optimised durability for extended service.

Mobiltrans HD Series products are designed to lubricate the most demanding transmissions, drive trains, clutches and hydraulic systems in Caterpillar, Case, Komatsu and other contractor, off-highway contractor, logging, mining and farming equipment. They are also suitable for most automotive hydraulic applications. Mobiltrans HD Series products are recommended for most spur, helical, bevel and worm gear bosses, even under severe-duty applications. 

Performance, Features & Benefits:

Mobiltrans HD Series products offer the following benefits :

· Optimised clutch-friction retention and slippage control

· Significantly improved clutch life compared to the best API CD / Cat TO-2 engine oils

· Greatly improved control of gear wear in transmissions, gear boxes and drive trains

· Top performance in wet brakes, excellent control of brake chatter · Excellent hydraulic oil stability and protection against high pressure pump wear

· Outstanding FZG load-carrying capability and FZG gear wear protection

· Excellent pitting control

· Mobiltrans HD lubricants have passed General Motors THOT oxidation test used in ATF and Allison C-4 qualification.