Power transmission fluids having enhanced performance capabiliti

Details Power transmission fluids having enhanced performance capabiliti Power transmission fluids having enhanced performance capabiliti

1994-11-22

1996-11-26

Medley, Margaret

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

C10M14106, C10M13700, C10M11102

Patent

active

055782361

ABSTRACT:
Power transmission fluids are described that have a Brookfield viscosity of 13,000 cP or less at -40.degree. C., a viscosity of at least 2.6 mPa.multidot.s at 150.degree. C. in the ASTM D-4683 method, and a viscosity of at least 6.8 cSt at 100.degree. C. after 40 cycles in the FISST of ASTM D-5275. This is achieved by use of particular base oil and additive components in specified proportions. Evaluations to date indicate that the compositions evaluated possess a combination of performance properties deemed necessary by an original equipment manufacturer for a new generation of electronically controlled automatic transmissions equipped with torque converter clutches capable of operating in a continuous slip mode.

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