Originally Posted By: saaber1
Originally Posted By: SuperBusa
Here's a few photos of a magnetic drain plug I use in my 05 Tacoma. This was at 5K on the engine, and the oil had 4K on it.
Great shot of break in wear! I bet the amount of crud drops exponentially as you get more miles on the engine. Do you know at what mileage your engine is normally considered to be "broken in"? I have seen both UOA Fe and magnet accumulations drop off considerably after the magic "broken in" point.
I put in a magnetic drain plug in my 110K mile Volvo. I change the oil every 7500 miles. Every time, there is a small amount of the same looking deposits on the end of the plug. Probably 1/3rd as much as pictured on his.
What I am curious about, is this stuff that managed to pass through the filter? Or through the bypass?
What about everything else in my engine that is made out of aluminum? Could this be passing through the same way that the ferrous metals are getting through?