Popsy - the 1/16/2011 UOA was without MoS2, and I believe I did add before the most recent, but the Moly count on both samples is almost identical. An earlier UOA on a different engine with one can of MoS2 shows Moly at 205
Maybe I didn't add?
Well, considering the boron and Moly levels, I think you forgot to add
I don't know these engines at all, but what about the possible coolant leak? I can't comment much on the results, but it is a beautiful car!
Strange, then maybe a Blackstone error ?
So, this was a 5 years old fill? Nice! Considering the metallurgy from this era, the carb setup, and no oil filter, I don't think it looks bad, I guess we can't compare with an uoa from a "modern" engine.
Popsy - believe it's a user rather than Blackstone error. The current fill definitely has the additives, but the previous, which this report covers, probably didn't.
I believe my tag: 1937 Alvis Speed 25 HDEO 15W40 w LM MoS2 is now accurate, but wasn't then.