The Blackstone report will advise as to what condition the oil is in, if the oil could be run longer and a very detailed report on all "ingredients" in the composition of the oil. A Blackstone analysis would be very strong and significant ally in any denied oil related warranty claim. One other important aspect of a Blackstone analysis is that they through the oil testing can look at unusual engine wear alerting to potential problems long before one would realize there was a problem sans the oil testing.