Iight guys, I just check my compression number again today. 200 in cyl 1, 175 on cyl 2, 140 on cyl 3, 200 on cyl 4. Add some oil into 3 and it rises to 175, add oil to number 2 and it rises to 225. I'm scared now that it could be my piston ring, but there are no symtoms or signs that could be my piston ring. The exhaust doesn't blow any smoke at all, during driving or idle. The only problem with the car is blown radiator after radiator, lagging on the motor between 2-3k rpm, cel light on for secondary o2 sensor and misfiring cyl 3. Hardly see any coolant mixing with oil. Maybe it still the blownheadgasket? Or is it definantly the piston rings? Someone please help me out.

 

Im probley wrong but ...

Hardly see any coolant mixing with oil.

You shouldnt see any should you ..?

 

There are too many variables at play here. It is nearly impossible to isolate the piston rings if you have a known blown head gasket. Perhaps a leak down test with oil added to the cylinder would work (I'm not sure).