Originally Posted By: cjhepburn
Looking at a few UOA from that link, it looks like PP/PU and Shell Rotella offer better results than most other oils as far as iron and copper.
Some folks see what they want to see.
Quote:
Miles on oil - 5,124
Pennzoil Platinum 5w-30
Aluminum - 4
Chromium - 1
Iron - 34
Copper - 13
Please compare to the above OP. My brain can't quite extrapolate such data. Given the lack of sample size, the time the oil is in, the total miles on each car, the region, the weather, etc - drawing such conclusions about one oil being suerior is dreamer thinking at best. We all do it, but it ain't right.