Fluid compositions for dual clutch transmissions
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United States of America Patent
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Issued Date -
Nov 23, 2006
app pub date -
May 20, 2005
filing date -
May 20, 2005
priority date (Note) -
Abandoned
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Abstract
An additive composition and lubricating fluid are disclosed that provide high steel-on-paper friction durability, good metal-metal extreme pressure performance characteristics and synchronizer performance. The lubricating fluid includes a base oil, a succinimide dispersant, a succinimide friction modifier, and a phosphonate. Also disclosed is a method for lubricating a dual clutch transmission employing a plurality of wet clutches, with the lubricating fluid of the disclosure.
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