Any one bother with it? Working in the heavy truck industry we use oil analysis all the time with Cat, Detroit, and Cummins. I have sent samples into Cat a few times, and they always come back good. When I was racing my Formula-Vee I would send in samples after each race weekend.

 

if i could get my turbo back and actually drive my car I would do this.

 

We do it at work on heavy diesels but I'm not likely to ever do it because I'm not going to tear down a Miata engine because it is showing a little too much iron in a sample. I'll wait until it blows up and then pick up another engine at the junkyard for $400 and be done with it.

Your situation may vary.