C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 125/24 (2006.01) C10M 125/22 (2006.01) C10M 163/00 (2006.01) C10M 171/02 (2006.01)
Patent
CA 2409793
A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryldithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature may reach 200 to 260°C.
Fujita Hirokazu
Iwamoto Shigeru
Nagamatsu Hiroyuki
Chevrontexaco Japan Ltd.
Sim & Mcburney
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