How long have you drive a car? How often do you replace your engine oil? Do you know what’s the purpose of an engine oil?
The purpose of an engine oil is primarily to stop friction between all the metal surfaces in your engine from grinding together and tearing themselves apart and also to dissipate the heat generated from this process.
Another purpose of an engine oil is to transfer heat away from the combustion cycle and must be able to hold in suspension the malicious by-products of fuel combustion, such as silica (silicon oxide) and acids. It keeps the moving parts coated in oil and cleans the engine of such nastyy chemicals and buildups.
Exposure to oxygen will be minimised and thus oxidation at higher temperatures. The engine oil does all of these things under tremendous heat and pressure and for the most part without succumbing to fatigue or black death, the ultimate engine destroyer.
I’ll explain about Black Death next time.
