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That's an OK report. It's just ONE report, so we don't know much. For example, are wear metals (Iron, copper, Alum, lead) going up or down? Keep doing the tests. And update in 2019.
Why are you using a 10W40? You don't want to use a 10 weight oil. You should use a 0 or 5 weight. So, 0W40, 5W40, or 5W50.
See how low you are in the spec range for viscosity? That's classic Mobil One shearing down. I suggest using Mobil's 5W50, and it will greatly improve, and is still A40 Porshe approved. Your wear metals should follow, with a slight improvement in 1 or 2 changes, and drop 1 or 2 PPM.
There are a bunch a posts around 100 that have postings of the findings.....I am one of the last posts with four oil analyses, #199. Scroll up from there, but you can get lost with info in this thread.
So do the trends is what is more important than comparison to similar vehicles?
That makes sense now. That is very classic Mobil 0W40 shearing. Stop using it. Start using a quality A40 approved 5W40. Unless you drive in the winter, use a 0W40. Then change for spring-fall. Mobil 5W50 would be a great choice.
11-21-2018, 02:29 PM
Blackstone Oil Analysis report: How to interpret results
