You can buy air line anti freeze, but plain old rubbing alcohol works as well. A heat gun on the starter works too. But our bulk trucks leave out at around midnight, and this was not the thing we wanted to mess with at that hour. We have both Wabco and Bendix air dryers on our trucks and change the elements regularly, but some how a little moisture gets into the tank. We had separate air tanks for the starters. From the compressor we went through the dryer and then to the wet tank and from there to the dry tank and from there to about a 40 gallon tank for the starter. CF used to have upright tanks about the size of the muffler. I don't know of any fleets that still use air starters any more. Your compressor will pump more than you think. Brakes use a lot of air, and you probably will have air leaks. Don't get me wrong, I am not condemning air starters, but you should be prepared to occasionally have hell with a cold start.
