hmmm.. may have to ask Santa for it..
if there is I thing I know about myself, with my new cars, I am into washing & detailing the heck out of them often... for the first 6-8 months. Then, inevitably, my interest starts to wain and I start to dread it. So, anything like that which is legit, I might have to give a shot.
I did not realize it was just a filter. I assumed it was some 'stuff' they was sprayed onto the car in conjunction with the water and thus, it left some sort of film on it that reduced surface tension so the water bailed out. so I thought, if it is some 'stuff' what does that do to the finish and the windows over time.. some toxic film build up? but if it is just a filter...