SAE J1285 (DEC1999)

Withdrawn Revision
Powershift Transmission Fluid Classification

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SAE J1285 (DEC1999)

Powershift Transmission Fluid Classification

PUBLISH DATE 1999
PAGES 5
SAE J1285 (DEC1999)

This SAE Recommended Practice was prepared by the SAE Fuels and Lubricants Technical Committee:

(a) to assist the designers and users of heavy-duty transmissions in the selection of powershift transmission fluids for field use and

(b) to promote a uniform practice for use by marketers of lubricants and equipment builders in identifying and recommending these fluids by type.

This classification is designed for fluids used in heavy-duty truck, bus, earthmoving, and marine transmissions or steering clutches.

The fluids must perform the following five functions:

  • Transmit hydrodynamic energy in a torque converter.
  • Transmit hydrostatic energy in hydraulic circuits.
  • Lubricate bearings, bushings, gears, and moving parts.
  • Provide proper frictional properties in lubricated bands and clutches.
  • Provide heat transfer medium for liquid- or air-cooled systems to maintain suitable operational temperature range.
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