Now more and more families have cars, so today we will tell some matters needing attention. when the car park outside, maybe stick on the guano. by the time, how to wash the guano? You can not wash the guano directly, beacuse the guano will stick on the car paint, if you wash the guano directly, maybe destroy the car. The best method: first, soak the guano a certain time, then you wash the car with the microfiber towels.