Woodie wrote:They're almost moot the way they're set up, only useable with the headlights on. The point is to cut under the fog and not have the glare that regular headlights produce in foggy conditions. If you can only turn them on with the headlights, then that glare is already there and the fog lights themselves are near worthless.
I see what you are saying as most cars have the fog lights wired with the low beams. Therefore the fogs only come on with the lows and they turn off when the highs come on or when the lows go off.
I've personally driven in very very heavy fog up in the mountains where I used to live. The kind that is so thick you can literally stick your hand out and not see the end of your fingers well. In that stuff, the headlights do create quite a bit of glare, but it doesn't really matter because you can't see anyways, with or without low beams. The difference that fog lights make is that they illuminate the
road lines so you can follow them. This is especially true at night. The fog lights allow you to better see the lines of the roads and the reflectors so you know you are on the road.
Keep in mind you need to go very slow in this stuff. I used to crawl and go no faster than 10 mph as the foggiest parts were along the cliff side of the mountain.
High beam usage is a known mistake that people make. It creates more glare that worsens your vision in the fog. However, much like those who don't use headlights in the rain, there are always those clueless idiots.