Have you ever wondered if rain can substitute for a proper car wash? The simple answer is, “Not really.” While rainwater may rinse off some surface dirt, it falls short when it comes to thoroughly cleaning your vehicle. Here’s 5 Reasons Why Rain isn’t a Substitute for a Car Wash 1: Acid Rain One of the primary reasons why rain can’t replace a car wash is acid rain. Acid rain refers to any form of precipitation that contains high levels …