Used oil Analysis Blackstone vs. Cat

[JayG]

I was curious, so I had identical samples from my last oil change tested by both Blackstone and CAT. The CAT analysis ($19) is less $ than Blackstone ($25 + postage). CAT is really fast, a day or 2 and Blackstone take longer, mainly due to mailing it

Interesting that they gave different results. I would think that since the sample came out of the same oil, they would be almost identical and you can see the results are different.

The only difference was I did not send in the Blackstone sample for a few weeks after the oil change and the CAT sample was the next day

I know Jake Raby swears by the CAT analysis, but in looking at them it appears the Blackstone one shows more metals. I have to change the oil on my 996 soon and will do a double analysis as well and see what the results are.

Any ideas as to why they got different results. The Blackstone one is certainly easier to read