What are the reasons for degradation of engine oils?
Every thing in this world has an life and the same applies to engine oils. OEMs generally notifies the period or kilometer (mile) for changing the engine oils. Vehicle owners should change the engine oils in line with OEMs notifications. In some cases, engine oils degrade faster. The reasons may be many, some are : • Piston rings having worn out resulting in gaps between the rings & the cylinder. This may result in oil becoming darker/thicker faster. In common terminology, it is called “Back Compression”. • The vehicles are used in extreme & dusty atmosphere, overload conditions etc. • Oil filters are not working properly. • Fuel dilution resulting in thinner oil. • Not using engine oil of correct specifications. • Using spurious engine oils. The high priced lubricants of well known brands are prone to this factor.
