Windscreen wash soap

[ASH M]

Shield has a windscreen wash, its about 25 bucks for a bottle. 20ml treats 2 litres of water.

 

[andrewbuch]

Shield has a windscreen wash, its about 25 bucks for a bottle. 20ml treats 2 litres of water.

I use this

 

[BlueBeastie]

I've used it too, but struggling to find it.