Mountain Dew Wiki
Mountain Dew Wiki
Sweet Lightning

Sweet Lightning is a Franchise Exclusive Mountain Dew flavor available since April 2019 only at KFC restaurants.


Sweet Lightning is a Sweet Peach and Smooth Honey flavor of Mountain Dew and is yellow-orange in color. It is similar to the cancelled flavor Happy Dew Year, which partly has a similar shade of peach flavor. It is also close to the relationship between Taco Bell and Baja Blast of having a proprietary beverage chemically, specifically designed to taste best for the food that the restaurant serves.


Its tagline is "DEW charged with Natural & Artificial Sweet Peach & Smooth Honey".


On March 4th, 2019, PepsiCo filed a trademark for Sweet Lightning titled "MTN DEW SWEET LIGHTNING." It was then quickly rumored that Sweet Lightning would get released exclusively at KFC restaurants, which was later proven in a Reddit post weeks later.

On March 31st, 2019, in a r/MountainDew Reddit post, Sweet Lightning got first leaked by a user named "FightingCommander," showing an image of Sweet Lightning in a soda fountain. This was the first confirmed sighting of Sweet Lightning, with further sightings appearing after.


  • This flavor was leaked months in advance on the Mountain Dew Subreddit.
  • Around early 2022, rumors came about that Sweet Lightning may be released in stores for a limited time. However, this has never been confirmed, nor has there been any concrete evidence supporting this.
  • There are also KFC/Taco Bell combined restaurants, where both restaurants' exclusive Dew flavors, Baja Blast and Sweet Lightning, are available.