General capabilities expected from an engine lubricant

• Dispersivity or capacity to the cold parts of an engine clean
• Detergency or capacity to keep hot parts of an engine clean
• Thermal strength or capacity to withstand temperature changes
• Anti-oxidant or capacity to resist the action of oxygen
• Anti-wear or capacity to contain wear
• Anti-scuffing or capacity to preserve oil film even in the presence of high pressures
• Alkalinity reserve or capacity to neutralise acids formed during combustion or other sources thereby preventing corrosive wear
• Demulsibility or capacity to separate contaminants
• Resistance to hydrolysis or capacity to withstand the action of water which can affect additives
• Pumpability
• Centrifugibility and filterability or capacity to separate insoluble elements
• Anti-rust,corrosive and anti-foam are just some of the other properties required

Properties ideal for bearings

• Soluble for high speed fluid film hydrodynamic lubrication, hence, low viscosity with reduced oil film friction.
• Moderate bearing loads
• Improved heat transfer behavior
• Corrosion protection
• Cooling
• Low friction
• Good low temperature viscosity
• Good high temperature viscosity
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  Keywords: Lubricating oil, engine lubricant, gear case, Turbine oil, Oxidation, Recharging, Emulsification, Lube oil, Asphaltene Stress, Thermal, Oxidative stress, Acid Stress
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