The engine uses about 3 to 4 quarts of oil before a oil change the it will go in limp mode. I have to get it rest and then add oil for the engine to run right. Also transmission don’t want to shift 3 to 4 gear it will be 35 mph to 65 before it shifts. When the car gs in limp mode I lose power going up a hill and almost got rear ended. They won’t do anything do to its a used car. No lights came on the dash till it acts up.