IT does NOT work on black!!!! It left dirty spots and water spots all over my 4runner, if you have a black one, stay with the bucket and the sponge, griots garage sells some sweet car wash stuff.

 

I washed both of my vehicles last night with it. I will post pics tomorrow, both turned out spot free.

If you buy the Mr Clean from Sams Club, it comes with the 10X filter.

EDIT: Nevermind, its raining right now.

 

I bought one of these. I've used it about 10 times now on my black runner. It's worked perfectly every time in varying temperatures and cloud conditions. Obviously you just need to pay attention to which side to do first (which is not facing the sun). I would recommend it... a definate time saver.

 

it works great. i washed my mom's white ifiniti i30t, my dad's dark silver landcruiser and my black 4runner right after another and they all came out spot free.

i was so impressed i bought two more starter kits to give to my relatives.