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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I tested twice after initial break-in (10k) it helped form a better air filter change schedule. I was picking up too much silicone. reduced the filter to 15k and the problem wen't away. it's a good deal every 15-25k miles but honestly, when was the last time a modern engine blew-up?
