NHTSA Complaint #11514121 — 2016 HYUNDAI SONATA

I have 81345 miles on my car and I was driving on a long trip on a turnpike after 3 hours and approximately 150 miles of driving, the blinking check engine light came in my car and the engine lost power, I was unable to go past 50MPH in the posted speed limit of 70MPH. I had other 4 passengers in my car including 2 minors. had to tow it to Stoltz Hyundai of PA and the dealership told me it was low on oil and my car had 2 quarts of oil left which was unbelievable to me because I just had an oil change at 79123 Miles. I also had them replace my spark plugs at 79K miles. I was told by the dealership to perform an oil consumption test at a cost of approx. $400 and I was not covered under any kind of warranty as I am the second owner of the car. I have read online that there is a problem with the 2.4L Hyundai GDI engine of excessive oil consumption and nothing is done. the dealership is not helping either Hyundai. it's a clear problem with the Engine and I have proof of receipts for every recommended service performed on my car.