[Supr3me]

One of my buddies works in an aircraft testing facility and one of the things he can do is oil vaporization analysis. I gave him a sample of some new Liqui Moly 0W40 to burn (listed as baseline) and some used oil BMW 0W20 with about 4000 miles on it. Here are the results.
Has anyone seen an index of nominal ranges of elements for oil analysis for our engines? I'm guessing that one of the responses will be "just send it to Blackstone" and that's fair, but I always enjoy learning things and doing them on my own too.

eksigned I saw that you had uploaded one but it was hosted on a picture site that said it wasn't available anymore

[weehe126]

You would really have needed to use the same BMW oil for the baseline. I'm assuming you are making the switch to compare to on later changes, but can't really compare the two since they are different oils. Assuming Mo means moly, it is interesting how little the liquid moly has. I am a little concerned how high your iron (Fe) is. That is where the baseline of BMW oil would help.

[eksigned]

Here you go! Sorry for the delay. Didn't see a notification for some reason. Just happened to stumble upon the thread. lol

[Supr3me]

Thanks for the input. I'm concerned about the levels as well, iron included- assuming that the units are the same, ppm.

I went ahead and requested a Blackstone kit and will probably try to take an early sample prior to oil change - maybe do a 1500 mile test and a 3K mile test and start establishing a baseline.
At $30/test it seems like a cheap way to figure out if I'm headed for trouble with the power I'm making now.

Wish me luck with trying to pull a little bit of oil without making an insane mess =D

[F32Fleet]

Originally Posted by Sµpreme

Thanks for the input. I'm concerned about the levels as well, iron included- assuming that the units are the same, ppm.

I went ahead and requested a Blackstone kit and will probably try to take an early sample prior to oil change - maybe do a 1500 mile test and a 3K mile test and start establishing a baseline.
At $30/test it seems like a cheap way to figure out if I'm headed for trouble with the power I'm making now.

Wish me luck with trying to pull a little bit of oil without making an insane mess =D

https://www.bobistheoilguy.com/used-...hat-is-normal/


For the record Blackstone has found no statistical difference with regards to wear rates regardless of which oil was used.

[Supr3me]

Thanks, that was a really interesting read. I feel smarder now.

[G.Newt]

Originally Posted by eksigned

Here you go! Sorry for the delay. Didn't see a notification for some reason. Just happened to stumble upon the thread. lol

This was super helpful. I use the same oil, and while that's no indication our engines are wearing the same, it's good to hear that the oil is running well for you. Decently high levels of zinc and phosphorus for a non-diesel oil which makes me quite happy.