What the hell is the point of these things??!

[Subsea7]

Originally Posted by Error404

Any science behind that?

Only that I bought a brand new van in 93, used rain-x on it, then every few months it needed blades, they were rotting along the edge and leaving streaks, this is brand new wipers mind. I continued using rain-x and after 1 year it had gone through 3 or 4 sets of blades.

The mechanic suggested stopping the use of rain-x as he had seen this before and suspected it was the chemicals in the formula, I did stop and used isopropyl to clean the glass and the next set of wipers lasted a year. Same brand (bosch) from same place.

Just my own experience, nothing more.