NHTSA Complaint #11567578 — 2017 HYUNDAI SONATA

I'm reporting the growing concern of my engine having rod knock or seizing . It has been burning excessive oil since I bought it at 80k miles. I have reached out to hyundai and they have denied me any help as the vehicle is past their 10y/100k mile warranty. Although my vehicle has extended warranty up to 150k miles for engine seize or rod bearing failure through them. There's no warning lamp but the piston slap noise is getting louder, I'm scared this problem might leave my family and I stranded in the middle of the night. Also scared that it can catch on fire due to almost running with no oil. I have to do my oil change every 1200 miles, instead of 3000. corporate hyundai has denied any type of assistance, I went to a dealer to get it checked out and they insist without proof of oil changes there's nothing they can do, i do them myself on all my cars and I'm VERY on top of my maintenance. I have scheduled an appointment 02/07/2024 to try and diagnose the growing issues with the engine itself.