Originally Posted by Cujet
Interesting that you think your old bottle was more effective. The wikipedia page seems to indicate that the original formula still exists. Do you think that maybe the solvent evaporated enough to concentrate it?
I've been using Rain X regularly from the mid 1970's, and don't notice that it's worse than in past years.
I've heard it told several times here that it isn't the same formula it used to be. Now, we all know the value of anecdotal evidence. I have been using it since the 1980s, and can't say I've noticed a difference in performance. The only thing I've noticed, and I brought it up here before, is that I have always used J-cloths to apply it, and now, after a use or two, they become brittle and turn to dust, whereas in the past, they wouldn't. I have no idea if that's a Rain-X thing or a J-cloth thing.