You never want to see white smoke coming from your exhaust. However, if it does happen, it's a good idea to get the problem ...

Even if your vehicle isn’t flashing any warning lights, the smoke coming from your exhaust is a signal that something might not be working properly. If your car is blowing blue smoke ...

Thick blue or gray smoke that doesn't dissipate ... If your engine is burning enough oil to produce visible exhaust smoke, the oil level will drop over time and require periodic top-offs.