In my opinion poorly designed low tension oil rings and “synthetic” oil just meeting specs that aren’t very stringent to begin with are a bad combination.Without a teardown that is impossible to verify and that sucks. Getting to heavily reduced oil burning would be about it. With everything else that clean why would the oil control rings stick that bad? Would thicker viscosity oils make that worse (harder to flow through/drain)?
I look forward to your end results and details of prior OTS oils used as well as OCI's.
Then on the BITOG bingo would HPL or whichever version Amsoil maybe help prevent that over the OTS versions? Our "normal" evaluations here at BITOG in my opinion are just like the video. Spotless, no junk, sludge or varnish under valve cover or even oil pan = happy and we've done great with maintenance. Things like this, bearing issues, Hyundai/KIA issues is just depressing for me.
It’s been hard keeping my mouth shut for 20k miles but my test is going well…