I have been learning so much about the inter-workings of automobiles lately, have you ever wandered what is the exact function of oil in you car?
“Your engine oil does two things. Primarily it stops all the metal surfaces in your engine from grinding together and tearing themselves apart from friction, but it also transfers heat away from the combustion cycle. Engine oil must also be able to hold in suspension all the nasty by-products of combustion such as silica (silicon oxide) and acids. Finally, engine oil minimises the exposure to oxygen and thus oxidation at higher temperatures. It does all of these things under tremendous heat and pressure.”
Read more: http://www.carbibles.com/engineoil_bible.html#ixzz1YQaUGAZY