If they wear out, oil can leak into the combustion chamber and burn, producing blue smoke. Black smoke from a car's exhaust typically indicates an overly rich fuel mixture — meaning there's too ...

Blue smoke typically means your car is burning oil, grey smoke may suggest oil burning, a bad turbocharger, or fuel system issues, while black smoke signals excessive fuel consumption. If these ...

As wildfires rage in the Los Angeles area, air quality is deteriorating and health risks from air pollution mount. Here’s what to know about staying safe.