What is the going rate for washing cars on a dealers lot?

[Real Riders]

Does anyone wash cars on a dealers lot? If so, what is the going rate for an exterior wash? I was going to start with small 20 car lots and was wondering how much to charge per car. The plan would be to use the car dealers water and my products. I will also be using the two bucket washing system from Autogeek. No drying, just wash the exterior of the cars.

[Shane731]

Usually around $2 or $3 per car, if I'm not mistaken.