Here's the latest UOA on my '03 Honda S2000 taken with 313,000 miles on the engine and just short of a 41K OCI. I'm using Amsoil Signature Series 0W-30 oil with an Amsoil Dual Remote bypass filter (EaBP-90) and an electric prelube pump: I switch the pump on and get full oil pressure before each time I start the car. The car still runs great. These are mostly highway miles.
I haven't done anything to the engine since the last oil change except change the PCV valve, add oil and change the oil and air filters. I'm not sure why the lead is ticking up but the other bearing metals are staying low. I have not used any fuel or oil additives.
I haven't done anything to the engine since the last oil change except change the PCV valve, add oil and change the oil and air filters. I'm not sure why the lead is ticking up but the other bearing metals are staying low. I have not used any fuel or oil additives.