Blackstone Oil Analysis worthwhile??
The "how many miles on your tow vehicle" thread prompted this. I'm in the same boat as the OP of that thread, I've got 215,000 miles on a 2002 1500HD with the 6.0l gasser. It's been a great truck, b...
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bpounds wrote:I use this oil and Last summer did the oil test. I went 11200 miles. Report was a good result and said could go 13000 next time. Not going that many miles again. I change in my garage . 99400 miles on truck. ChevmanCummins12V98 wrote:
It would be interesting to see if you are running you oil too long or not long enough.
Exactly. But once you get a few OCI into ownership, you've pretty much got the info and then you can back off on test frequency.
Until you change oil brand or weight. For example, I learned that Rotella 5W/40 synthetic was badly sheared down by the time 5k rolled around, and needed to be changed at about 3k. I was clued in by the injector noise too, but the tests told the whole story.
I don't run that oil anymore. It wasn't worthwhile.
