Mountain Dew is a nice drink, full of caffeine, however nowhere near as nice as Schweppes SparkingDuet?, which can safely be consumed without the fear of not being able to get to sleep.
Orange and lemon flavour.
Mountain Dew sold in Australia is caffiene free, I believe Diet-Caffiene free Mountain Dew is available in NewZealand.
4 pages link to MtDew:
