Fog lights on w/ High Beams, New GM trucks
Works just like on the last couple gen trucks. New 2020 Silverado Will see how much it helps. Last Chebby, 2016 model, it was night and day difference (pun intended, lol). Well not quite, but...
Forum Discussion
Fog lights are designed mainly for radiation fog and ground fog.
As fog floats above the ground at around 18” or so and up tens fo feet.
So low mounted fog light eluminates the ground through fairly flogless air.
High beams in fog just light up the moisture aerosols (droplets), which will glow and reflect light in all directions...including right back at the light source...the vehicle’s headlamps and the drivers eyes.
High beams are for high speed driving where you need to see whatever is out there. So that you can react to whatever it is out there.
Lighting up the pavement close to the vehicle will only light close things up and if traveling fast...no time to avoid whatever. Why high beam lens do NOT project light close.
Now for things like crawling off road, sure thing. You aren’t going fast but need to see far and close.
Fog lights need to be mounted less than 18 inches from ground level. If higher, then they are just headlights.
Tule fog (California Central Valley is famous for it) can have a low top and semi’s can have their driver’s eyeballs above that fog. Why I follow semi’s with proper distance, as they can see better than cars below.
Plus, in thick fog...turn off your main headlamps and just use properly mounted (height) fog lamps.
IMHO, I’d rather have a separate switch that I control manually...
As fog floats above the ground at around 18” or so and up tens fo feet.
So low mounted fog light eluminates the ground through fairly flogless air.
High beams in fog just light up the moisture aerosols (droplets), which will glow and reflect light in all directions...including right back at the light source...the vehicle’s headlamps and the drivers eyes.
High beams are for high speed driving where you need to see whatever is out there. So that you can react to whatever it is out there.
Lighting up the pavement close to the vehicle will only light close things up and if traveling fast...no time to avoid whatever. Why high beam lens do NOT project light close.
Now for things like crawling off road, sure thing. You aren’t going fast but need to see far and close.
Fog lights need to be mounted less than 18 inches from ground level. If higher, then they are just headlights.
Tule fog (California Central Valley is famous for it) can have a low top and semi’s can have their driver’s eyeballs above that fog. Why I follow semi’s with proper distance, as they can see better than cars below.
Plus, in thick fog...turn off your main headlamps and just use properly mounted (height) fog lamps.
IMHO, I’d rather have a separate switch that I control manually...
