Here is the latest UOA on my 2003 Honda S2000 taken when the car had 353,310 miles with an OCI of 40,259 miles. The car has an Amsoil Dual Remote Bypass Filter and a prelube pump which was installed when the car was almost new.
The car started consuming a lot more oil during this OCI (a little over 2 years). I'm not sure what's causing this. The car run's great, doesn't create any blue smoke and the plugs look normal. I haven't done anything to the engine except a valve adjustment at 200K miles. I replaced the PCV valve and that didn't help. It's possible that I have worn valve stem seals but since the engine is not misbehaving and I don't have any noises during deceleration I'm in no hurry to pull the head apart to change them.
The car started consuming a lot more oil during this OCI (a little over 2 years). I'm not sure what's causing this. The car run's great, doesn't create any blue smoke and the plugs look normal. I haven't done anything to the engine except a valve adjustment at 200K miles. I replaced the PCV valve and that didn't help. It's possible that I have worn valve stem seals but since the engine is not misbehaving and I don't have any noises during deceleration I'm in no hurry to pull the head apart to change them.