- Joined
- Sep 26, 2010
- Messages
- 9,605
I was at my local WM this morning and saw the new MC oil for Powerstrokes meeting the new WSS-M2C171-F1 specification sitting on the shelf. Based upon what I see on the bottle "Contains More Than 1000PPM Phosphorus For Better Wear Protection", it makes me wonder if any HDEO with >1000PPM meets their specification; i.e. is that all that is required. I realize that is a broad statement, but...

