I suggest you DO NOT waste your time or money on BSLabs.
--They give a fuel content number that they don't actually measure or test. They 'estimate' it (rather badly) based on a poor flash point test.
--They charge far too much for a test that doesn't include TBN (or TAN, for gear and tranny oils). Getting TBN costs an _additional_ amount that's just not reasonable.
--Their TBN test method is different than the industry norm, so their numbers are not comparable to those given by most labs.
--Their commentary is just silly or even flat wrong too much of the time. It seems to be aimed at making you feel good about your report, possibly without regard to what is happening.