We’ve owned a V70 wagon since it was new in 1998 and it burned a quart of oil about every 3 tanks of gas which I ascribed to the synthetic oil slipping by the rings. My daughter’s boyfriend rolled the car on a ski trip and voila! after 140,000 miles it no longer burns oil. What happened???
A sticking piston ring that no longer sticks ? You went to confession and made a good act of contrition ? I hope no one was hurt. If so, you’ve found a new cure for excessive oil consumption. Someone will buy it.