Hydroxy functionalized ashless additive
AssigneeThe Lubrizol Corporation
InventorYanshi Zhang
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Abstract
The disclosed technology relates to hydroxy functionalized ashless additives useful in engine oil compositions due to their ability to reduce deposits, particularly deposits seen in turbocharged direct injection (TDI) engines. The described additives include ashless saturated compounds having a long chain hydrocarbyl polymer terminated by a hydroxyl group. The disclosed technology also relates to lubricant compositions containing the described additives, processes of making the described additives, and methods of using the described additives.
Claims15
A lubricant composition comprising:
- (i) an oil of lubricating viscosity;
- (ii) an additive comprising an ashless saturated compound having a long chain hydrocarbyl polymer terminated by a hydroxyl group.
The method of claim 14 wherein the engine is a turbocharged direct injection (TDI) engine.
The use of an additive in a lubricant composition to reduce deposit control in a turbocharged direct injection (TDI) engine in which said lubricant composition is used, said additive comprising an ashless saturated compound having a long chain hydrocarbyl polymer terminated by a hydroxyl group.
Dependencies are inferred from the claim text.