Position Title. Car Wash Assistant Manager. Starting Wage. $16 - $20 per hour (DOE). Location. West Fargo, ND. Position Summary. The Car Wash Assistant Manager is responsible for overall operation and profitability of the car wash when the Car Wash Manager is not working. The Car Wash Manager drives business by focusing on the customer's experience and is responsible for physical appearance of site, equipment maintenance, and chemical and supply ...