Just had my first oil analysis through Blackstone labs. Anyone else ever do em? I'm impressed with the time frame from sending sample to getting results. I like that they will keep track of all numbers and average them for my vehicle then compare them to my next analysis. Plus, they average all other engines that are the same as yours so you can see how yours is doing compared to the rest of the ones they do. I think I'm going to continue to use them and see if i can extend my oil change interval a little (have a bypass filter installed now). Any stories to share regarding fluid analysis?