Abstract: Lubricating oil compositions having excellent thermal and oxidative stability, wear control, copper corrosion control and compatibility with seal materials comprising a mineral oil having a) a Viscosity Index of greater than 110 and an aniline point of greater than 110.degree. C. and/or b) a linear+single ring paraffin content of greater than 68 wt %, and at least one polymer selected from olefin (co) polymer(s), polyalkyl (meth) acrylate(s) and mixtures thereof. The lubricating oil compositions are particularly useful as manual transmission and axle lubricants.
Type:
Grant
Filed:
August 3, 1998
Date of Patent:
March 7, 2000
Assignee:
Ethyl Corporation
Inventors:
Nubar Ozbalik, Sanjay Srinivasan, Vincent James Gatto