Thanks, Cozmo! I didn't see any smoke with any color in the mirror when I drive. But I will definitely have someone check it out next time when I start up the car.
Do you mean if the valve stem seals are bad, the mechanics can't detect it?
I used to have only local mileage on my car. But in the past three months, I drive 100-mile highway everyday. But you said highway drive should consume less engine oil, right? Well, I'd better have this problem clear up. At the same time, I got a bottle of engine oil in my trunk in case...
