Driving in Fog – when do you use your fog lights?When do you and when don’t you use your fog lights?
Well think about why you use them, are they are more to help other vehicles see you? or are they to light the road up ahead. We think it is a bit of both.
The general rule of thumb is to use your dipped headlights and fog lights if visibility is less than 100 meters. In daylight these won’t dazzle other drivers but will show them that you are there. Remember to adjust your lights according to the changing conditions. Using your lights is not enough remember to use your demisters to keep the inside of the windows clear and your wipers for the outside, you might not even notice that it is the mist on your screen that is preventing you seeing and not just the fog.
Do not use your main beam in fog as this can dazzle others and create reflection off the fog so will impair your visibility further. As soon as you are out of the fog, turn your fog lights off. It is an offence to use them unnecessarily.
As we all know don’t follow others too closely by hanging onto their lights as their vehicle is displacing the fog so you may get the impression that the fog is not as dense as you thought.
Increase the distance between you and other road users as the roads may also be wet. If you have to overtake take extra care as the fog may be hiding oncoming vehicles that can’t see you either, after all the car in front could be heading for a collision and there is you following them!
Fog can also come with ice and snow, which can create freezing fog, your windscreen washers might not work in freezing conditions, it would be wise to avoid driving at all in these conditions.
Remember, also look for the coloured reflectors on the motorway, red is used along the hard shoulder, amber on the central reservation and green to highlight slip roads.
If you can avoid driving in fog then do so, stay safe out there.