NHTSA Complaint #11521461 — 2016 HYUNDAI SONATA

I have owned my sonata since I bought it in 2016, brand new. Started having issues with having to get more frequent oil changes in 2021, of course after my warranty out. It ‘s supposed to make 5,000 m between changes for synthetic/hm oil, but when it first started the car would be not wanting to run right, jumping, engine seemed to be running rougher, which would happen right around or close to the 3,000mark. From there it got worse and worse. Oil changes started becoming needed at 2,000 or less miles between, so many mechanics say that Hyundai are the worst for burning excessive oil. Fast forward to 2022, even with the oil changes in every 2,000 miles or so, we started having to literally ADD extra oil to the engine between changes, to the point where we would worry and check it about halfway through the 2,000 miles and sure enough very low or barely any oil even in the car??? So we would add about 2-3 quarts, get it back to the right amount. Then at times right before oil change adding 1-2 more quarts. The car would start not running as well every time it deemed it necessary for an oil change, which was way too early AND after adding up to 5 quarts , just did what we had to do bc we kept being told, Hyundai’s are just bad for Burning excessive oil!! Throughout all this, not once did a check engine light, problem indicator light come on to say anything was wrong mind you. Here comes August 2023, oil had been changed yet again and it wasn’t time for even an early change at like 2,000 miles, 1-2 quarts of oil had already been added mind you.. We were driving two of our children home and the car just started bucking, jerking, shaking violently, smoke coming out everywhere, car completely quit operating, had to be towed, has not been driven since. Engine failure needing prob replace, oil level right after incident—surprise barely any oil! 135,000 on it/destroyed bc of excessive oil burn/engine issues, not paid off, missed work, forced to buy new car asap, unacceptable