Anti-wear composition for low sulfur, low sulfated ash and low phosphorus lubricating oil composition for heavy duty diesel engines
Patent Information
- Authority / Receiving Office
- US · United States
- Current Assignee / Owner
- CHEVRON ORONITE TECH BV
- Publication Date
- 2007-03-01
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
FIELD OF THE INVENTION
[0001] The present invention is directed to a low sulfur, low sulfated ash and low phosphorus lubricating oil composition for low emission heavy duty diesel engines comprising (a) a major amount of an oil of lubricating viscosity and (b) at least 5 weight percent of an anti-wear additive composition comprising a metal salt of a Mannich condensation product based on the total weight of the lubricating oil. The present invention is also directed to a low sulfur, low sulfated ash and low phosphorus lubricating oil concentrate comprising (a) an oil of lubricating viscosity and (b) at least 5 weight percent of an anti-wear additive composition comprising a metal salt of a Mannich condensation product based on the total weight of the lubricating oil. BACKGROUND OF THE INVENTION
[0002] Heavy duty diesel internal combustion engines mounted on motor-driven vehicles, constructions machines and power generators are generally driven using gas oil or heavy oil (which is a ...