[mark turton]

would you? and has anyone used it on self cleaning glass?

as for real ground in dirt on glass i found that pure water alone doesnt always get some of the compounded film of grit on glass. even after using a still full flock.

 

[G Griffin]

I don't know whether I'd use it or not.
But they don't get as dirty and are easier to clean. Plenty of water should do it and is recommended. In fact, dry spells are the main problem for self cleaning glass.
I think you can use washing up liquid, so I'd probably go for Ecover, if I had to.