Re: Brand New Sedan Class Hatchback (Vista QJD VX) Reached Home
I have read a lot about lubrication during college days and later too. Let's see how much I can recall.
A lube oil should be able to make a thin film between the running parts in contact. In case of ideal lubrication, the parts are always covered by a layer of oil, and they are actually not in contact.
In case there is any air or water ingress, the oil should be able to withstand there content to some extent and maintain its properties. Synthetic oils are better.
Lube oil should control corrosion.
Lube oil should show resistance to oxidation. Synthetic oils are far superior than mineral oils in this aspect. Thats why we can use synthetic oils for longer time.
Another property is detergent property. This property lets oil remove dirt from the surface of metals. Here too synthetic oils are better.
I have written in more or less layman's terms, as I too have forgotten most of it. You can always get lots of information on net. Though its very clear, synthetic oils are better.