They tend to be left on and of course come on when the auto headlights come on and the DRLs come off.
But it's really just done for looks. I think about the only time I've found foglights to be really useful is at night when I'm parked at a car camping site and need to see - that way I don't have to use the light on my head, the foglights light the immediately surrounding ground pretty well (better than the headlights do).
I've even had times in dense fog where I tried with and without foglights on my gs400, audi, 4runner, silverado, and more and never noticed a truely worthwhile difference. A difference? Yeah, but not like 'hey that helps'... at all.
No true foglight is ideal for driving with in PLACE of your headlights.
Driving lights, maybe, but not foglights.
But it's really just done for looks. I think about the only time I've found foglights to be really useful is at night when I'm parked at a car camping site and need to see - that way I don't have to use the light on my head, the foglights light the immediately surrounding ground pretty well (better than the headlights do).
I've even had times in dense fog where I tried with and without foglights on my gs400, audi, 4runner, silverado, and more and never noticed a truely worthwhile difference. A difference? Yeah, but not like 'hey that helps'... at all.
007Runner said:Fog lights would work so much better for us if the law would allow us to turn off the headlights. Sort of defeats the purpose of good aftermarket fog lights. Wish the factory fogs were better, be one less thing to need to buy in the future.
No true foglight is ideal for driving with in PLACE of your headlights.
Driving lights, maybe, but not foglights.