>Mark,
>
>I bought a bottle of Rain X anti-fog treatment and it seems to work ok.
>I've used the Rain X that goes on the outside of the windshield, and
>noticed that it needs reapplication about once a week to remain
>effective.

Rain-X works great, and can even replace wipers in an emergency. But, in my
experience, it makes the wiper blades jump and skip if it is more than a
wek old. I had to use denatured alchohol to remove it from the wind screen.
It caused enough 'stiction' on my window to strip one of the wiper arms!
Once I cleaned the window, the blades run quite smoothly. My suggestion is
to keep your  wiper blades in good condition and save the rain-x for when
the motor burns out.
Ken

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Ken Bowen
kenb@sirius.com                             I've had all I can stanz and I
1969 Camper                                 can't stanz no more.
                                                        --Popeye