Engine Burning Oil problems of the 2018 Kia Motor Optima

2018 kia Optima ex a/t. My wife drive this car to work every day, 45-50 mile round trip for the past couple years. We have noticed that oil consumption is starting to become a problem. Im unsure the exact amount it goes through but it seems to be almost 3-4 quarts between oil changes. Every now and then it would randomly be a quart low, but no leaks, no noticeable smoking, no check engine lights. My wife has had a few times where the car would randomly loose acceleration nad slow way down. The car would come back up to acceleration after pulling over to the shoulder of the freeway when it happens. Im wondering if it might be related to the oil consumption, but not sure. It has the recal for the knock sensor update which we are waiting for Feb 28th, thats the time the dealer can get the car in for it. Our closest dealer is 150 miles from home. We have owned it since new and this is the only problem we've had with it. I hope we can get this resolved. No new car should go through this much oil at almost $6 a quart or more.

I originally leased my 2018 Optima with 98 miles on it and bought it out at the end of my lease this was my second Optima, I also had 2 Hyundai sonatas. Since I'm in sales I had the added mileage on it. At 98,000 miles the engine started ticking. I originally had a 2013 Hyundai sonata that when it hit 105,000 started ticking only to find that it was burning oil (1. 5 quarts a week) so I was hesitant about another kia but the dealer assured me that kia had been aware of the problem and that they had fixed it. Guess what?! it hasn't. I took my vehicle in every 1,000 miles for oil change and have the documents showing how much oil was being burned off. According to kia corporate there is nothing wrong even though my vehicle requires a quart of oil every 1,000 miles and was under owners warranty. Never again. People watch your vehicles. This is a know problem with kia and Hyundai and they do not honor their warranties.