So, I mean, statistically speaking he’s probably correct, the low rate of a couple of outliers is, well very low. But calling it useless also means he doesn’t understand the problem, it just writes off an area that doesn’t fit into that line of thinking, whether statistically important or not.
If I’m a chemist at maxlife, it’s very useful information because it demonstrates a potential costly problem with their product, or disclaimer issues such as mixing with someone else’s fluid. Perhaps another lubricant was used in mine before-hand, which didn’t work well with ML. I don’t know. But the experience is factual, and had I not flushed it out was going to be a personal statistic of $4500.