CODE 4316. Must present printed coupon prior to car wash. Valid only at the Mr Wash Full Service locations. Not valid with taxi cabs, fleet accounts or other offers. Car wash coupon valid at Mr Wash. Good at participating locations. One coupon per customer. Not valid with any other offer. With Valpak® coupon only. Must present coupon at time of purchase. Not valid on mobile site. Coupon void if altered.