用rainx的当心:
WARNING!
First in to say this, many long term users of Rain X have reported it corrodes the windshield tank sensor to the point where it breaks it and you'll have to repair it for $$$$$.
Broke my windshield sensor on my Civic after about 4-5 years of use. It was TOTALLY corroded, googled it and found many people complaining about the same. Been using REGULAR blue stuff for over 7 years in the same car, NOTHING. The car is rusting more than the sensor!!!
DO NOT USE RAIN X, freaken thing cost me $180 to replace my damn sensor. I kept the repair bill, if someone sues in Canada I'm in!