Hi to all you mechanics out there. I have a volvo xc90 with 160k miles. I have a few questions to ask and i hope you guys can address them one by one.
Is it normal to see very very tiny metal particles in used engine oil under very bright sunlight in certain angles?
When i did my oil change last time, my mechanic stired the oil with his fingers and looked for metal particles. He said by stiring the used oil, you are able to see metal particles. Is that true? And if metals are present when oil is stired, is it normal? By the way my mechanic says he sees it in every car and that my car is like a normal car
If my oil filter does not have any metal dust/ shavings, does it mean my engine is good or is there a chance that it might be wearing abnormally without me knowing?