NHTSA Complaint #11603975 — 2013 KIA OPTIMA

I've had my car since late 2018. A couple years after having I've noticed it's burning oil. I made an appt at Evansville Kia dealership & was called the day before appt to be told the excessive oil consumption test was not part of the warranty. I asked what am I suppose to do keep spending money on oil? The mechanic told me to keep topping it off til it quits, cause he said it's going to quit. How is this safe? Not knowing when & where you will be when something happens. My car is now using a quart or more of oil every 500 or so miles. This is ALOT of money out of pocket.