Frequently Asked Questions What will happen with Rocket Auto Wash now that Silverstar Car Wash has purchased it? Expand Rocket Auto Wash will continue to operate exactly as before, with no significant changes. Can I use my old Rocket Auto Wash coupons and certificates? Expand Yes we are honoring all previous Rocket Auto Wash Coupons and Certificates. If I purchase a Rocket Auto Wash by Silverstar Gift Certificate, can I use it at any new Silverstar Car Washes? Expand Yes you can use it all Silverstar Car Washes in Iowa, Nebraska and South Dakota. How many Silverstar locations will there be in the Sioux City area? Expand In addition to Rocket Auto Wash by Silverstar, there will be 5 more new Silverstar locations in the Sioux City area built in 2020.
