Rizlone ZDDP additive

[Marc Haibeck]

That's a very useful document. Thank you for supplying it.

According to the list the 15W-50 Mobil 1 product still has the full ZDDP EP package. I think that a 50 weight viscosity is too high for an engine with less than 100k miles. Except for the higher parasitic friction loss it would probably work well.