Oil

Oil is an incredibly important resource in GT. It serves two main purposes. One being power generation, while the other is material production. Looking through NEI can be a bit jarring, especially once you hit the cracked fuels. This guide will aim to break down the general concepts, and serve oil usage to you in a much more palatable way.

Power production
Power can be the first thing you use oil for. It can serve as your main generation starting in LV, and going as far as fusion (LuV) if you wish. It is incredibly strong, and arguably the single best fuel source for the early game. There's a lot of options, and a lot of discussion on the which is the best, but this can be a bit deceiving. At the moment it seems as though these are the best options for power.