I purchased a sharp 2006 GS300 in October 2018 from autonation with 154,000 miles. It stated I had low oil and got the oil change done at around 156,000 miles only 2,000 miles later I was already low on oil again. I took it in to get an oil consumption test and within a few days the VSC light was on. I took it back in and was told that the catalytic converter was failing. Was I sold a lemon? I know the car has 150k+ miles but I really don't drive that often and expected to get at least 50k miles on it. Any comments would be appreciated.