I am embarrassed to say I am a bit addicted to the carbonated soft drink Mountain Dew.
It's the BEST!  I love it, too!  I drink Diet Mountain Dew for breakfast!  
Really? Me too! I drink as many as 4 per day. There are other citrus soft drinks, like Mello Yello and Sun Drop, but I like Mountain Dew the best!
Does Mountain Dew have the most caffeine?
Mountain Dew
Mountain Dew (stylized as Mtn Dew) is a carbonated soft drink brand produced and owned by PepsiCo. The original formula was invented in 1940 by Tennessee beverage bottlers Barney and Ally Hartman. A revised formula was created by Bill Bridgforth in 1958. The rights to this formula were obtained by the Tip Corporation of Marion, Virginia. William H. "Bill" Jones of the Tip Corporation further refined the formula, launching that version of Mountain Dew in 1961. In August 1964, the Mountain Dew brand and production
List of citrus soft drinks
In addition to PepsiCo's Mountain Dew, Coca-Cola's Mello Yello or Dr Pepper's Sun Drop, there are a variety of smaller or regional brands for citrus soda. In deference to Mountain Dew's leading position in the market segment, some brands also use the word "Mountain" in their names.
Citrus Drop/Citrus Drop Xtreme.
Big K Citrus Drop is the generic version of Mountain Dew sold at Kroger stores. Its name plays another citrus drink, Sun Drop