NHTSA Complaint #11611868 — 2019 HYUNDAI KONA

My engine seems to have failed due to bad oil piston rings and Hyundai/ the dealership refused to look at it for that and denied my claim. Almost 3 weeks ago, my check engine light came on after (solid) after getting gas. It was running fine and I had an oil change appointment that Saturday so it should be good (I had a coupon expiring, so I was taking it in like 400 miles early for it's oil change). The car started losing a little bit power throughout the week- it didn't have the get up and go it usually does. On Saturday, first thing in the morning, on my way to my 8 am oil change, my car started a little rough (it had never done that before). I drive like 5 miles, then all of a sudden my car stutters, 2 blocks later dies, it restarted fine, but made a horrible noise. I drove it the block to the oil change place and my car was completely out of oil. No oil light ever came on and I have never been less than a quart (more than acceptable) at an oil change. There was no visible oil leak in my parking spot. It was towed to the dealership and the engine is blown. There has never been any visible oil leak and I have all records on carfax imputed by the mechanics.