This is my oil analysis on my 350is engine. I burn 93 octane and this was my first oil sample.

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Comment by Dick Booher on April 8, 2014 at 7:29pm
Thanks Larry. I will check that air filter and keep you in mind.
Comment by Larry Nelson on April 7, 2014 at 4:28pm
I own an oil analysis company in Arizona. My only concern is the Si number. Most engines have a limit for Si of around 15. You may want to look at the at the air filters rating as a way to reduce the Si. Especially since you don't live in a dusty region. Other than that everything else looks great. If you want to check out my lab look at

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