NHTSA Complaint #11530792 — 2015 KIA RIO

After an oil routine change last May, my mechanic informed me that the engine had almost no oil. I had been hearing a rattle when accelerating at times and noticed the vehicle seemed to be having trouble when increasing speeds were necessary (entering higher traffic areas/highway on ramps). I had always met the scheduled oil change requirements since I bought it in 2019 but this was the first time I had been told of this. The mechanic told me that it has been known that these vehicles have this problem. I usually went to the same reputable mechanic. Now, as requested by the mechanic, I check the oil each week and find that I have to add 1 quart every 10 days or less to keep the engine from failing outright. The engine light periodically comes on and goes off again, but I was told it was possibly related to the catalytic converter. I do not feel confident driving it much longer especially on highways because of possible engine failure on very hot summer days leaving me stranded in the heat.