Re: Intermitent sticky oil rings
Could be valve seals. I think I'd check the PCV valve and
hoses before anything. If it's plugged it presurizes the
crankcase, forcing oil up past the rings and down the valve
Clean the PCV valve squeaky clean make sure the hoses are not
plugged - some spider might have made a nice home in them.
All those chemicals (engine in a can) dilute the oil and wash
it off the cyl walls too.
Oil rings don't usually come and go.