When driving in fog, which headlights should you use?

When driving in fog, using low beam headlights is the best option because they provide better visibility in such conditions. Low beam headlights emit a wider, shorter light beam that illuminates the road immediately in front of your vehicle without creating significant glare. This is important because fog can reflect light back into the driver's eyes, making visibility worse.

High beam headlights, on the other hand, can cause increased glare when the light hits fog, rain, or snow, which can blind the driver and reduce visibility even further. Fog lights are specifically designed to project a wide, low beam of light that helps to illuminate the road just above the ground, but relying solely on them may not be sufficient in all fog conditions. Parking lights do not provide enough illumination for driving, especially in low-visibility situations like fog. Therefore, using low beam headlights is the most effective choice for safe driving in foggy conditions.