Fog can be a killer not only in Europe but also in South Africa's Mpumalanga and the Western Cape. Prepare yourself...UK driver training specialist IAM Drive & Survive offers tips on how to drive in foggy conditions. 1 Before setting off, clean your windows and windscreen and make sure all your lights are working.2 Let others know if you are likely to be delayed.3 Use your dipped headlights. South African drivers take note - only use your high-intensity front/rear fog lights when visibility is less than 100m.WATCH YOUR DISTANCE4 Use your windscreen wipers on an intermittent setting to clear the fine water droplets that collect there.5 Slow down and keep enough distance between you and the vehicle in front to ensure you can stop safely within the distance you can see clearly.6 Avoid relying on the vehicle in front as a guide to hazards ahead. Fog makes it more difficult to judge how hard vehicles are braking and they might be slow to react.7 Brake gently but earlier than usual so your brake lights warn following drivers.8 At junctions, wind down the window to listen for approaching traffic.9 Keep some high-visibility clothing in your boot in case you have to leave your car.