Buying a new car, the dealer is trying to sell me this Diamon-Fusion windshield treatment. They want close to $400, so I’m not likely to bite, but just curious it anyone has used this stuff. The claim is some “nano-technology” actually strengthens the windshield. And makes water run off. Thanks

Diamon-Fusion Windshield Treatment - Scam?

Craig58 January 16, 2008, 7:10pm 3

I don’t know what kind of car you’re buying, but I replace my windshield every few years/100K miles for about $250 when it becomes pitted.