Use Rainex on Model 3 windshield?

[SammichLover]

Best way I have found to crystal clear and easy wiping blades is the use of a clay bar.

Agreed that regular cleaning of debris is a very important thing, even if looks clean there's often tiny particles stuck on that a clay bar will get. Even just a regular good wipe down with window cleaner and a microcloth a couple times/month makes a big difference.

 

[MacGreiner]

I have it applied on the rear camera - doesn't help and doesn't hurt.