[Ticker]

Thanks for posting the link - that's the only report I've ever seen with less than ~1200 ppm ZDDP. If you search, there are a number VOAs with results in that range as well. ZDDP as an additive degrades over time, but I wouldn't expect that much drop with 5K miles...even with the hard use.

5W20??

I have a sample of RP 10W30 out to Blackstone myself, and I'll make it available on return.