NHTSA Complaint #11420695 — 2017 HYUNDAI TUCSON

I bought my 2017 Hyundai Tuscon with 38,905 miles on it. My engine blew up at 70,806 miles while I was on my way to work.My husband was changing the oil and when he pulled the oil plug from the oil pan, NOTHING came out of the pan. We assumed the dealer just didn't put oil back in it or not enough. The mileage on the Tuscon the last time we took it to the dealer was at 54,988. We put a 7,500-mile oil change in it and the next oil change, it was dry again. No oil light, no engine light, no oil spots on the ground or the engine. No evidence of it leaking anywhere. Fast forward a few oil changes, sooner than suggested, we changed the oil at around 68,000 miles with no issues (only because we were changing the oil every 3,500 miles or so). Then while on my way home from work one evening, all my dash lights came on, my car sounded and ran extremely rough for the 15 miles I had until I reached my house. As I pulled up the driveway, you could hear it knocking loudly so I checked my oil and the engine was BONE DRY, it had only been 2,200 miles since the last oil change so it shouldn't have been empty. We added the 5 quarts of oil that it needed and drove it down the road a mile or so to listen and feel it, nothing was wrong; it sounded fine and ran well. The next morning it ran for 15 min in my driveway, warming up, and drove 8 miles and I heard a loud clank. It stalled, I was able to start it back up, it stalled again and I had to coast it half a mile to get it out of the road and into a driveway out of harm's way. It had to be towed to the dealer. They ran several tests to find out that "cylinder 3 had spun its bearings leaving heavy amounts of metal in the oil and pan noted, premature material failure of bearing is cause of rod knocking. Engine will need replaced due to introduction of metal on all moving components." It was in the shop for a month being repaired and now with only 5,222 miles on the engine, I've already had to add almost 4 quarts of oil in 2 months.