This has been seen on here before. That is why I went w 3k miles oci's. It started burning on my Element between 3-4k miles. Element did not burn prior to use, was using it to remove heavy varnish. Stuck rings were fixed prior to Valvoline Restore and Protect being made.Oddly enough, my van is starting to burn Valvoline Restore and Protect. This is my second run at it. I’ll go back to MaxLife or Havoline in the 6qt box.