Lubricating oil compositions for internal combustion engines...

C - Chemistry – Metallurgy – 10 – M

Patent

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C10M 129/40 (2006.01) C10M 163/00 (2006.01) C10M 167/00 (2006.01) C23F 11/16 (2006.01)

Patent

CA 2090647

ABSTRACT OF THE DISCLOSURE Essentially chlorine-free lubricating compositions having a TBN of 10-30 designed for use in internal combustion engines having silver bearing parts which provide protection for said bearings via the incorporation therein of certain unsaturated aliphatic carboxylic acids. An additive concentrate for said lubricating compositions is also disclosed.

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