When driving in fog, which headlights should you use?

When driving in fog, it is important to use low beam headlights. Low beams are designed to provide adequate illumination without causing significant glare, which can be especially problematic in foggy conditions. Fog reflects light back toward the driver, and high beams, which project light higher and further, can make visibility worse by creating a "white wall" effect.

Low beams create a more diffuse, wider spread of light that helps illuminate the road immediately in front of the vehicle without reflecting too much off the fog. This clearer view allows drivers to better see road conditions, lane markers, and any obstacles or hazards that may be present.

While fog lights are specifically designed to cut through fog, mist, or rain and are particularly useful in these conditions, their use is typically intended to supplement low beams rather than replace them.

Using just parking lights is insufficient for driving since they do not provide the necessary visibility in low-visibility conditions like fog.