Quote:
Originally Posted by jkv357
Artan - to prove your point you need to have the oil analyzed. That will tell you if it is still usable.
When you say "it's fine" - what does that mean? Is 100,000 mi without an oil change enough? If the engine is junk at that point, have you gained anything? You'll have to wait and see.
Have you ever seen stone get worn away by water? Oil under pressure with micro particles of abrasives (metal) will wear away metal parts - slowly, but surely...
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jkv357 - I understand what you mean, I will believe the lab results partially. They will say your oil contains this much amount of metal particles and so on, but i will not agree with them that they say it will wear the metal and you need to change it.
So as you say the water wears away the stone. - It is true, I have seen it. Logically somehow the oil should do the same in the engine but we are discussion at a very low level becuase we are not specialists on those areas. I believe that there is a devil sitting in a very small detail somewhere. I dont know where he is. However the best way to test it is to test it yourself. I like discussing while test is going on in my car. One thing that is convincing me that oil does not need to be changed is the oil in my car that is still good after 37000 km and the engine has no issued at all.