What should you use when driving in fog?

When driving in fog, using low beam headlights is the recommended approach because they provide better visibility without causing glare. High beam headlights can lead to reflections off the fog, making it more difficult to see by scattering light around you. This can create a blinding effect that reduces visibility rather than improving it.

Fog lights are specifically designed to illuminate the road directly in front of your vehicle, providing additional visibility in dense fog, but they should typically be used in conjunction with low beam headlights rather than exclusively. Using lights in completely dark conditions may also not be helpful in fog; ensuring that you have proper lighting aids visibility without overwhelming the driver. By using low beams, drivers can maintain better control and awareness of their surroundings, which is crucial in foggy conditions.