Jonah said:
You might also want to try using some RainX. At highway speed, you almost
don't even need your wipers. When you do use them, the windshield comes
clean a lot better. I swear by the stuff.
I used RainX for quite a while and was satisfied until I also washed the car
(soon after applying RainX) with that no-dry car wash stuff by Mister Kleen.
That day we were on the freeway when it started to rain, and when my wife
turned the wipers on it looked like the blades were loaded with white paint!
The incompatible polymers, one trying to repel water and the other trying to
embrace it, apparently made a waxy film that was turned to something evil
and nearly opaque by trying to wipe water off it. It was the very devil to
clear away enough that we could drive - windshield cleaner did nothing at
all - and it took literally hours of scrubbing with Soft Scrub and a power
buffer to reduce it to the point where it wasn't a big problem. The
windshield has since been replaced (unrelated crack) and I have never used
RainX on this one.
I elected to stay away from RainX on the windshield because I was concerned
that we might go to a car wash where the no-dry stuff was used. Shunning
either sort of product is good enough. Too bad - RainX makes windshield
cleaning so much easier, especially for removing bugs. Even ice doesn't
stick well.
Mike