TO-4 Fluids are mostly formulated in SAE 10W, SAE 30 and 50 viscosity grades designed to meet Caterpillar’s latest Transmission and Drive Train Lubricant specification. TO-4 exceeds and replaces Caterpillar TO-2 requirements. TO-4 provides improved clutch life when compared to the previous TO-2 Fluid along with improved control of gear wear in SAE 30 for transmissions, gear boxes, and SAE 50 for final drive trains. TO-4 has outstanding hydraulic oil stability and allows protection against high-pressure pump wear.

Today’s construction equipment is designed to deliver maximum power and efficiency. With increasing loads come greater power densities in the drain train causing wear and equipment failure. Repsol TRANSMISSION TO4 offers the following benefits to equipment owners and fleet managers:

  • Improved Clutch Life: Up to 45% over TO-2 fluids. Balanced static/dynamic friction provides clutch durability and maximum power transfer giving outstanding equipment productivity and reliability.
  • Wear Protection: Outstanding shear stability to keep the same viscosity along its use to prevent wear on gears, bearings, and clutches to give longer transmission life and less down time.
  • High Temperature Protection: Provides excellent thermal, oxidation, sludge, corrosion, and deposit protection for the increased transmission temperatures, severe service, and extended oil life.
  • Low Temperature Fluidity: Superior cold temperature flow characteristics assures ease of pumping, meantime reducing the wear during the equipment warm up.
  • Support seal compatibility: Which prevents leaks to reduce the consumption by topping up and increase the efficiency.

Besides Caterpillar, Repsol technology is recommended for use in heavy duty off-highway equipment including Caterpillar, Komatsu, Komatsu-Dresser and in transmissions manufactured by Eaton, ZF among others. Repsol technology has been tested in the field to demonstrate our capabilities when the OEM is not willing to provide any official approval.

 

OEM APPROVALS AND QUALITY LEVELS IN REPSOL PRODUCT:

OEM’S

SAE 10W

SAE 30

SAE 50

Allison C-4

X

X

Caterpillar TO-4

X

X

X

DANA Powershift Transmissions

X

X

Komatsu Dresser

X

X

Komatsu KES 07.868.1 (Transmissions and final drivers)

X

X

X

Vickers (35VQ25)

X

ZF TE-ML 03C

X

X

NA

ZF TE-ML 07F

NA

X

NA

 

Repsol TRANSMISSION TO-4 has been designed to guarantee maximum reliability for the lifetime of the equipment.

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