Compositions comprising at least one carbodiimide
View Patent ↗There is provided a power transmitting fluid top treat composition including at least one carbodiimide. The top treat composition may be added to a power transmitting fluid comprising at least one carboxylic acid comprising about 2 to about 24 carbon atoms.
1. An automatic transmission fluid composition comprising a major amount of base oil comprising caprylic acid, and 0.5 wt. % bis-(2,6-diisopropylphenyl)-carbodiimide,
wherein the fluid composition provides 4 ppm lead after exposing a lead bushing sample to the fluid composition for 50 hours at 150° C.
2. A method for reducing lead leaching in lead-containing automatic transmissions comprising providing a fluid composition comprising a major amount of base oil comprising caprylic acid, and 0.5 wt. % bis-(2,6-diisopropylphenyi)-carbodiimide,
wherein the fluid composition provides 4 ppm lead after exposing a lead bushing sample to the fluid composition for 50 hours at 150° C.