Who analyzes oil?

 

Of course the dealer is going to tell you to come back in 3550.... they make money.

As has been said, follow the manual.

 

No, you don't need a psychiatrist and a couch There are many oil testing labs in big cities. Ask any engine rebuilders or stop by your local general avaition air ports (little private plane people) and they tell you where the nearest one is. It usually cost about $25 for a sample analysis - the result will tell you a lot about the wear and tear of the engine and the condition of the oil they you drained from the engine. There are also a lot of them on the internet - you can send them a sample
http://www.oillab.com/

 

Has anyone ever done this? I think I'm going to do it. I used to go 10k in my 91 accord and that car was running fine at 200k.