Deal: Save on almost every type of auto service Midas Auto Service Experts provides with online coupons valid through September 30. An Oil Change Plus, including tire rotation, is just $24.99. Save $10 off services over $100, $20 off services over $200 and $30 off services over $300. And for those who serve, receive 10% off any service with your military ID. Visit the MIDAS site and enter 91016 for Monrovia’s zip code to view our local offers.