I've been using Blackstone for 3 years (3 oil changes) and it's nice to get not only the report but comments from them detailing a few of the most important wear items.
Here is an example of the comments from my last report:
" Iron came down once again in this latest sample from your Newell Coach's 8V92T engine. We
wouldn't have expected iron to drop on a longer oil run like this -- usually it tracks up with more time on the
oil -- so that's a good sign that steel wear has actually improved quite a bit in your engine. Previously, your
per-mile iron wear rate (ppm/miles) was between 0.013 to 0.016 ppm/mile, but in this latest sample it's
dropped considerably, to just 0.005 ppm/mile - less than half of your previous wear. That's great to see! Fuel
is down as well. Nice report here!"
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