Re: Power Tank Gas?
Because CO2 can be found at any welding supply store for cheaper than the other gases you mentioned. Plus CO2 in a power tank is kept in liquid form so you can basicly get more air out of one tank full, in order to keep nitrogen in liquid form requires much more pressure and special fittings/hoses/regulators (that and it is around -297 F I believe) CO2 is just more practical and cost efficent.
97 Tj, 10" suspension lift, 38.5 SXs, 4.0, "flipped" dana 300. 44F/60R axles.
Locked up and Armored