Question: how much caffeine in a 12 oz kickstart?
Answer: 9. Mountain Dew Kickstart (69 mg per 12 fl oz) As if regular Mountain Dew didn't have enough caffeine as is, they released an energy drink with even more of the good stuff. This energy drink has the same amount of caffeine as a Pepsi Zero Sugar, so it won't make you feel jittery if you drink just one can.