Quote:
Originally posted by md21722
Larry,
From $13-24 depending on which lab one uses. Currently I am using www.avlube.com's oil analysis. They are running me about $21 shipped to my home and $1.52 for postage of the used oil back to the lab. From Tennessee it takes 2 days to reach the lab, and 2 days after that I get a PDF file with email discussing the results. George Morrison, a STLE CLS at AVLube also gets copied on the email and if anything is suspicious you will hear from him.
I have been running OA on my '87 300D because those engines are known to have problems with the head. On my latest sample traces of coolant were detected in the engine oil so I'm preparing for the head job.
You may recall on one of these motors, using 6000-10000 mile drains with synthetic I could not measure any chain "stretch" after 94,000 miles.
For my purposes, I believe synthetics work better and I did not factor in the OA into the cost of oil changes because of the known head problem with these engines. I would have done it anyway.
Regards,
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Excellent posting Brian, this is how large trucking company's have done it for years. Not to mention the US Navy.
