Heated Windshield Washer Fluid Tanks?

How many gallons do our windshield washer fluid tanks hold? Should I put in more than one gallon at a time? I don't use the fluid any more than in my other cars, but my 7 guzzles it! Wish there was a way to control whether or not it's wasted on the headlamps...

It is just over 1 gallon

Thanks; found it: 1.325 gallons. The bottles at gas stations are only 1 gallon. :|

The headlights are only washed when they are on. You can just turn them off when you need to wash the windshield and then turn them back on if you need to.

Right; thanks.

I always thought the way that the headlight washers worked was really cool. Until I found out that the residue created water spots all over the fenders and hood of the car. Thanks for the tip about deactivating them.

Do we have heated windshield washer fluid tanks, and if not, why?

GM vehicles are advertised as having same!

Originally Posted by chrischeung

I always thought the way that the headlight washers worked was really cool. Until I found out that the residue created water spots all over the fenders and hood of the car. Thanks for the tip about deactivating them.

I think that stuff has alcohol in it too. I don't like it getting all over my hood because I figure it'll dissolve some of the wax. I wonder if replacing it with distilled water would help with the water spots.

Distilled water will help but it will also freeze.

Rubbing alcohol will help. First time I hit the washers with my lights on it looked like a horse ejaculated on the front of my car. One option I could do without.