NHTSA Complaint #11511020 — 2020 HYUNDAI PALISADE

I bought this car as a certified pre-owned, picked it up on January 18, 2023. This is our family car and we took it on a 350 mile each way road trip on Jan 27. Upon arrival to our destination, driving around the city I noticed a lot of white smoke coming from the exhaust. I checked the oil and there wasn't oil registering on the dipstick, so I added 5 quarts of oil to the car to get us home on Sunday Jan 29. Upon returning home, I got the car back to the dealer and they had it for a couple days but "couldn't replicate the smoke". The dealer began an oil consumption test based on Hyundai's instructions. Now I have to take the car back in every 1,000 miles to be checked. I picked the car up on Feb 9 and have continued to drive it around with white smoke coming out the back end in multiple scenarios: after sitting at a stoplight, stop sign, turning from a slow speed, or even starting to accelerate on the freeway after slow (not stopped) traffic. The engine knocks when accelerating after most turns, between 20-30mph. Not only is it embarrassing to have big white plumes of smoke at the back of the car, it doesn't feel safe for my family or good for the car to continue driving to get to 1,000 miles and go have it checked for the next 4,000 miles. Hyundai certainly knows of the problems and are making me "prove" issues through their oil consumption test. Meanwhile, I drive a car that has horrible exhaust fumes, and causes safety concerns as it could stop running anywhere, anytime.