My 09 5.3l flex fuel v8 is burning oil agin. First thay eplaced the valve cover and it stoped for 7000 miles now its burning agin I checked the oil and its barley on the dip stick I think it went through 2+ quarts in only 1800 miles. Hope thay fix this problem for good the truck only has 34k on it. Look like im not alone on this problem.