In Regrowth 1.7.10, I'm generating quite a lot of creosote oil from an automated coke oven system. I have need of a large amount of power, as well as a way to get rid of the stuff, so I was thinking about using combustion engines to kill 2 birds with one stone. Turns out that Buildcraft combustion engines don't accept creosote, and I don't have very much oil at my disposal. I need more power than what industrial steam engines can provide, that can be powered by a renewable resource, like creosote. I understand that the BC combustion engines can be run off of lava, but I'm not aware of any way to transport lava easily from the Nether to the overworld. Trying to mass produce lava with fire essence and buckets seems impractical and overly difficult, because I don't know how I would get it out of the buckets into a tank to be used. Can anyone tell me how I could utilize the creosote I have stored, produce infinite lava and store it, or how to transport it from the Nether?