I know this is a bland subject. I'm curious to hear what you think is the best washer fluid. I've used RainX 2-in-1 with pretty good results. I'm checking out Einszett 8.5 oz. fluid concentrate ($8 @ Amazon) which makes 7 gal. Anyone ever tried this? I know Einszett has a good reputation for interior cleaners.

 

The best is whatever is on sale!

 

I honestly can't recommend one, I personally dont use it and anytime someone does I am dealing with stain removal from the build up on the paint.

Oh and a peeve of mine is driving behind someone using theirs, it doesnt even hit their winshield but it shoots over their roof and all over my vehicle and glass.....

 

Had good luck with a weak, like 10/1, mixture of distilled water and iso. alcohol. Shouldn't stain the paint, just require a little more upkeep in detailing.

YMMV but it works for me.