Originally Posted By: DemoFly
If they fell out of suspension they won't go back into suspension.
If the particles are big enough to be seen, they will get caught by the filter
That is the same as my thinking.
My ex's car has over 180,000 miles on it. That works out to 36 oil changes. Never shaken or stirred oil. Maybe it will only last 300,000 miles instead of 400,000.