What do you guys generally do with your creosote oil? I like to push a coke oven early on for coal coke, but I always fill it up with creosote and I don't really seem to make a lot of rails. I know it no longer burns in forestry engines, but have heard it will work with the railcraft steam boiler. How much creosote does it take to keep a boiler running indefinitely? Is there anything I can do with it besides making rails and putting it into a liquid fueled firebox? The iron tank is an option but I tend to be chronically short of iron, especially in the early game.