Oil consumption the number 1 cause & a simple fix are you burning oil . Oil leaks plus why are your gaskets failing at the valve cover the rear main oil seal even the crankcase & all other leaks like o-rings . Find out how to stop oil leaks and check your pcv valve we are using a 2014 Hyundai elantra gt. Positive crankcase ventilation system. A direct injection or gdi using crc intake valve and turbo cleaner. Check out other procedures along with oil additives we try in another video like stp oil treatment.