Originally Posted by DICKBEE7631
One would think at those temperatures you mention, even warm water would "cool" the surface and help stabilize any wax. Also, when I wash with a sheepskin mitt, the amount of warm water actually applied to the car's surface is relatively small compared to the amount of cold pre-wash and rinse that I apply.
Please don't think I'm suggesting that you wash a car when the surface temps are that high - you absolutely should not do so. Always work on a cool surface, whether that work is washing, claying, polishing, waxing, etc. And by "cool" I mean cool to the touch, and always work in the shade.