GLENDALE, Ariz. — Clean Freak Car Wash, powered by Circle K, expands in the Phoenix Valley with a Glendale free carwash event. Free wash weekend welcomes Glendale residentsClean Freak will host a Free Wash Weekend from Friday, Sept. 19 through Sunday, Sept. 21. This Glendale free carwash event gives residents the chance to try Clean Freak membership options with added fuel perks. Commitment to community and customers“At Clean Freak, we believe in washing without limits,” said Morten Jensen, vice president of operations. What: New Clean Freak customers can enjoy a free wash and membership discounts.