NHTSA Complaint #11567201 — 2015 HYUNDAI SONATA

About 20000 miles ago, I was informed by my servicing center that my Sonata came it without oil on the dipstick. My car currently has 90k and my engine is burning about 1qt of oil every 1000 miles. Many people have been having issues with these engines from Hyundai and Kia. My engine has been a part of a class action lawsuit regarding this problem but my specific model is never included even though the engine is. I've been checking my oil regularly and keep oil in my trunk at all time since this first happened but I'm getting close to my car being out of warranty. When I get my oil regularly changed at 3k - 4k miles, well below the the suggested 6k, is it my responsibility to add oil all the time or is it the responsibility of Hyundai to replace my engine for being faulty? My warranty expiration is coming up and I'm keeping this engine alive by adding the needed oil and even though my engine is part of a class action lawsuit. I'm not going to get any benefit of warranty extension or replacement from that lawsuit as my specific model isn't listed. I have a Sonata Eco 1.6 liter and it always the Sonata 2.0 and 2.4 they are listed even though the Tuscan with a 1.6 engine, the same as mine are included. There are thousands upon thousands of these vehicles on the road burning oil. It's bad for the environment and a ticking time bomb for everyone driving them. We need an investigation into these faulty engines and an actual fix from Hyundai and Kia.