*Extended drains = more metal shavings grit (very small - looks / feels like metal sand ) in my oil drain catcher plastic container with 5W30 ... I noticed even MORE metal shavings grit with 5W20 versus 5W30 in extended drains (unscientific test for sure but noted none the less) .
Originally Posted by Rat407
Interesting. I never noticed metal shavings in my oil pan. I would think if you can see them then your engine is about to go.
Originally Posted by ChrisD46
* With a synthetic oil 5K OCI I notice less metal shavings in my plastic oil drain catcher afterwards versus 6K + OCI's .