March 4, 2024 No Comments FREE Car Wash at Sheetz Open the Sheetz app and login or register. Click Rewardz, then click Offerz and enter offer code: SHINYCLEAN to get an offer for a FREE $9 Car Wash at Sheetz. Locations. FREE Car Wash at Sheetz – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.