Is there actually any prohibition from using them on certain types of road.
I though the only rule was the obvious one of "turn off rear fog lights when
the following car is so close that it will be dazzled by them"? I tend to
keep my rear fog lights on in fog if I can't see any lights behind me, and
turn them off when I can see the headlights of the car behind (on the
grounds that when I can see him, he is probably close enough to be dazzled
by my fog lights).
Embarrassingly, I spent the whole of one journey religiously turning what I
thought were my fog lights off and on depending on whether I could see
anything behind me, only to discover at the end of my journey that I'd been
turning on/off the adjacent switch - for my heated rear window ;-) That was
on an old Mark II Golf where there were three rocker switches on the
dashboard - one for fog lights, one for heated rear window and one for
something else - unlike the modern trend of putting the fog light switches
as a pull-out on the on-dashboard light switch (modern VWs) or as a collar
on the light-switch stalk (most other cars I've driven).
Rather than tutting, perhaps you'd like to point me to the exact
regulations. OK, so I omitted to say "only use them when it's foggy",
because I thought that was blindingly obvious, though many people seem to
use them even when it's completely clear (not even light mist).
Is there something in the highway code about classes of road or its speed
limit which regulates when they may or may not be used, despite thick fog,
subject always to the "don't dazzle" rule.
Are they the ones driving around with their fog lights on when there is
I drive around 40 to 50 thousand miles a year and have done so for the
last 20 years.
How many times do you think in that time I have needed to use my fog
lights to meet the required 100m visibility guide line?
My memory is that you are supposed to put your fog lights on when visibility is less than 100 metres - lots of people put them on when you it is indeed a bit foggy but you can easily see more than 100M - and then leave them on!
Auto headlights are crazy, they turn on when you drive through a slightly shaded area of trees, then off again after 5 seconds.
But the worst thing is the always on EU daytime running lights fiasco. First thing I do is to disconnect them. You don't needs lights to see something when the sun is out!
They don't make fog like they used to. I've done about 30,000 miles a
year from 1980 to 2010 and I really only recollect a couple of occasions
when rear foglights weren't a positive nuisance. OTOH I remember 2
weeks of freezing fog in Leeds in the 1960s when you couldn't see a lamp
post at arm's length.
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