A New Mountain Dew Flavor Is Coming—Though It Might Look Familiar to Fans

This summer, we’ll all be trying Mountain Dew Citrus Blackberry for the first time–or will we? This is a weird one, folks. Technically, I’m here to tell you about a brand-new Mountain Dew flavor debuting later this year. That being said, I’m pretty sure 95% of this soda is identical to a Mountain Dew Game Fuel variant that hit shelves a few years ago. This is a mystery; let’s split up and search for clues, gang.

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What is Mountain Dew Citrus Blackberry?

Recently, a PepsiCo-partnered website posted the Mountain Dew Citrus Blackberry product image seen above. That official render corroborated a few reports we’ve been hearing about a new store-exclusive Mountain Dew launching this summer. You may have noticed this new Dew doesn’t feature a fancy name like “Baja Blast” or “Supernova“; unfortunately, Mountain Dew has started naming their sodas after… the flavors of the sodas. I’m sure it makes sense from a sales perspective, but it’s boring as hell. I don’t want to drink Mountain Dew Dragonfruit; I want to drink Mountain Dew Fruity Dragonfire.

Wasn’t there already a Citrus Blackberry Mountain Dew Game Fuel?

Yes, and that’s what’s so confusing about this! In 2024, Mountain Dew released a Citrus Blackberry Game Fuel variant in partnership with the Diablo video game franchise. (Per our own Mountain Dew superfan Tyler Bowers, Mountain Dew Game Fuel: Citrus Blackberry featured “a disturbing lack of blackberry flavor”.) After comparing the nutritional facts of these Mountain Dews, I can confirm that Mountain Dew Game Fuel: Citrus Blackberry and the upcoming Mountain Dew Citrus Blackberry are nearly identical–with one glaring, obvious difference: Caffeine! The 2024 Game Fuel release contained 113mg per 20oz bottle, while the 2026 release will contain just 90mg per 20oz bottle.

How can I get my hands on the “new” Mountain Dew Citrus Blackberry?

Per our sources, Mountain Dew Citrus Blackberry will release exclusively at Casey’s gas stations starting in May 2026. At this time, I can confirm we’ll see the flavor in 20oz bottles, but I wouldn’t be surprised to see it in Casey’s soda fountains and/or slushy machines. This limited-time-only release is the first exclusive Mountain Dew release to hit Casey’s locations since Mountain Dew Overdrive. When Casey’s announced the discontinuation of Mountain Dew Overdrive in December 2025, the brand did promise we’d still see limited-edition Mountain Dew flavors drop exclusively at their stores. There’s plenty of discontinued Mountain Dew flavors we’d love to see return to shelves; I’m formally requesting Casey’s revive Mountain Dew Southern Shock ASAP.