dubrocker04
+1y
nitrogen is the best to use. super dry, inert, and cost effective.
co2 is corrosive and not good to use. people may say they've used it forever with no problems, but in the end, nitrogen is way better.
now... on to helium. helium has a much fast expansion rate and a smaller molecular structure, so you get more going through the line. it is insanely fast and very fun to have. the down side is the price. it is way to expensive for a daily drive in my opinion.