With an older car it just seems to make a lot of sense to send out a used oil sample and see what is going on inside the engine. This was my first time, so it's a baseline. It will take a few rounds before we have any trends.
The basic idea is simple. You tell them which oil you use, and you tell them what year and model car you have. They know which parts of the engine are made of what metals. If you have lots of tin in the oil, you may be wearing your bearings. If you have high levels of copper, tin & lead you may have bearing damage. Things like that.
Overall the news was great; I had almost no materials on my drain plugs, and the UOA had all green indicators - no excess of any engine metals or other chemicals that shouldn't be there. The oil viscosity had dropped a little bit which I guess is not uncommon.
I cropped out the service provider's name, but FTR I am very happy with the service so far. I am just trying not to take liberties with others businesses and so on.
Baseline Readout:
The only callout, viscosity, led me to add a bottle of fuel injector cleaner to a full tank of super, and then drive around. Dirty injectors can contribute to fuel dilution (gas in your oil) I don't know if the injectors have ever had this kind of treatment. Most good gas has detergents in it so I was not concerned I was going to have any big surprises. The engine feels a bit peppier, probably confirmation bias but I'll take it.
See you in another 3600 mi! (give or take)
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