Mountain Dew Coolatta was a Mountain Dew flavored slushie drink that was released in 2011. It was only available at participating Dunkin' Donuts store locations.
Mountain Dew Coolatta was a Mountain Dew flavored slushie similar to that of Dew Iced at Cold Stone Creamery and Mountain Dew Freeze at A&W restaurants. Like Dew Iced, it had a similar taste and color to that of regular Mountain Dew but had the texture of a smoothie.
In April 2011, Dunkin' Donuts announced a new Mountain Dew flavored Coolatta. The new Coolatta remained available through the summer and all the way up until later that year when it was discontinued.