Did a compression test on the S today and the numbers are crazy good
My car is a 2000 S2000 with 41,747 miles. Starting From front to firewall in order #1 245, #2 246, #3 241, #4 245

Mobil1 10/30 oil, about 1,800 miles on oil since changed.

 

Nice! What made you want to do the compression test? Just curious?

 

I bought the car back in Oct and never did a compression test. I figured I would get to it once I got my tester back from the friend I loaned it to monthssss ago

I want to do a valve adjustment and then do the leak down test next. The car runs and feels strong I'm just going through the car a little more as I get time.

 

Very nice. To my surprise when I did a compression check on my S2000 at 140k my compression on the lowest cylinder was 240 which I'm still I'm shock about

 

I just did mine also, 250 across the board. My S is also a 2000 with 85,000.

 

Wow, great numbers for higher mile cars I think the 250 psi is the top of the new engine standard. I will probably redo the test once the valves are adjusted and she has a fresh oil change.

 

Seriously great numbers on both cars.

Oil change shouldn't make a differnce on compression numbers, but if you have a valve slightly out of spec it may help, but those numbers are absolutely nothing to be concerned about. Motor looks to be super healthy.