Quote:
Originally Posted by vettestr
If your job is reading a mass spec report it would seem you would get good at it sooner or later.
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Only if the data is accurate to begin with. Charles Navarro used to have a spreadsheet on his LN Engineering site that listed a hundred or so of the more common oils along with the
Zinc, Phos, Boron, Moly, and detergent values. These values were derived from various
oil labs, all of whom you would recognize. Several of the
oil manufacturers complained (Brad Penn being one) that the numbers were just flat out wrong. As I recall, Charles did his best to either correct, or to at least annotate, their concerns. I further recall that Charles penned more than a few forum messages that addressed his frustration with the accuracy of
oil labs. I believe he now offers that service himself. Suffice to say that I would not pull my bearings out based on one lab report that spotted some errant metal. But I might if based on two, especially if they were from different labs....
