Get a FREE Classic Shake at Sonic!
What if you lived in a world where you could send a text message and get a free milkshake in response?
Thanks to Sonic, you do. For a limited time, you can get an offer redeemable for a free classic shake. Simply text the promo code DEALS to number 876642. You’ll receive a prompt to enter your zip code and once you do you’ll receive your offer for a free shake. Then just show it when you go to your local Sonic and you’ll be in milkshake heaven!