It is usually the speeding bu---rs behind me that I worry about! I doubt if there has been more than one or two examples of fog in our neck of the woods this year in which visibility was down to 100m Pic taken 5 mins ago .The mesh is a wee bit grubby like the rest of my van which is used as daily transport
http://i109.photobucket.com/albums/n54/ ... hgrill.jpg
This is a rant from another forum - - he makes a few interesting observations .
As has been stated previously, it is illegal for fog lights to be used in anything other than fog or falling snow with less than 100m (or thereabouts) visibility.
Fog lights annoy me for a number of reasons, some of them are linked:
- They do create more dazzle.
- Their vertical adjustment is not covered by the MOT, unlike headlights, thereby potentially creating even more dazzle. Who knows how to adjust their fog lights correctly?
- They are not “more visible” than dipped headlights.
- There is absolutely no need to use them during daylight hours under any circumstances as they are for seeing with not to be seen.
- They have no effect for driving at more than 15-20 mph as their lighting capability falls off the end of the bonnet and will not give sufficient warning of any hazards other than in situations for which they are designed – MAYBE!
- They use up more engine power (read more petrol, less performance) if combined with headlights.
- They are not more effective than main beam.
Consequently, the thing I find most annoying is the lack of any reasoned thought process which goes into the use of fog lights. Apart from those who use them no matter what and many opinions have previously been published on these people, there are those who must think "It's a little misty, I had better turn on my fog lights". They don't seem to think "having turned them on they make no difference whatsoever”. Perhaps more thought should go into the process of driving by all.
My last reason above re not being more effective than main beam may surprise a few people but try it out. You can actually see objects further away in thick fog/snow with main beam than any fog light that I have experienced and that includes Cibie Oscars. It just appears to be worse because you get a lot of reflections from the fog/snow and you think you can not see as far – ignore it and look through it – you can see further. In fact, in the past (read many years ago), I found the best option for distance was Cibie spotlights (not driving lights) as they penetrated further with minimal glare but they were rubbish for corners!
) I have a more "bling" 7" chrome set of spots at the moment,replacing the rally giants that i sold to NeilT...the rally giants did perform better...but didn't respond very well to a good polish! 
