No I don't think wmo and 2 piston rings snapped in half are related :-) I think it was in the ether. I knew I needed to rering back when I did a compression test what.. Half a year ago? So I got careless knowing I needed a rebuild and when I ran out of glowplugs from the junkyard I just started in heavy on the no no juice. Then there was the morning something was definitely different. (I believe I broke 2 lower compression rings in half that mornin)
It actually started better on wmo, I was just.. Out of glowplugs. Literally. And low on compression. Considerably