Quote Originally Posted by CX-5um View Post
I bet by 60k, oil analysis would indicate all lubricating additives would be spent. By 100k if not changed....the metal shavings themselves would be the lubricating agents.

I just do drain and fills because I may want to keep the car through 150k miles in severe (desert heat) conditions AND be able to give or sell car to friends/family with added peace of mind.
Iíll take that bet, but it wonít be with my fluid, because Iím not changing it. Thereís no use to at 60k, or even 100k, and itís not because Mazda told me so.

Metal shavings as the lubricant at 100k, ha, I needed that laugh this morning.