Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Lubricating composition containing emulsion-sludge inhibitors

Patent ·
OSTI ID:5650148
A lubricating oil composition for use in the crankcase of an internal combustion engine, having improved resistance to the formation of emulsion-sludge in the area under the engine rocker cover, which contains the combination of an oxyalkylated alkylphenol-formaldehyde condensation product and an oxyalkylated trimethylolalkane.
Assignee:
Ethyl Corp
Patent Number(s):
US 4305835
OSTI ID:
5650148
Country of Publication:
United States
Language:
English