Well, to clarify, what I posted anyway which is what my experience is limited to, my eclipse was brand new when I got it and those cars required lots of little bs maintenance that was spendy. I got tired of doing it all and started just changing the oil. At about 60k miles the thing was running bad. Took it in and they changed the plug wires and 'flushed' the motor. They charged me 110 dollar for that alone! WTF. They were putting something in the upper part of the motor to clean the cyl heads, valves, springs etc...then they would put somethign in the oil and run the car shut it off, and then drain the oil and change it. Thing is they were putting oil in and running it again and then they would drain it AGAIN. It got rid of all the residual. I just didnt do it the 'right' way.
Buschur said I dont need to do that crap anymore as mine makes enough boost to literally blow all that crap out of the motor.
Those little 2.0 were/are HAAAARD on oil...mine has revved as high as 9500 rpm...thats as high as the tach goes...
Ive derailed this enough, sorry guys.