They have the same ammount of energy per item. Crafting normal fuel into advanced fuel just to liquify it seems like a pointless waste of immersite.
This mod was made for a SE+K2+BZ run, because latest SE's rebalance made biomethanol [and biofuel] beyond useless.
Sorry, I didn't mean you should add two new liquids. I just meant that you should allow biofuel to be turned into the same amount of liquid fuel since they have the same energy value, and the advanced fuel should just turn into more of the liquid fuel
Also I'm just using K2, not SE. Idk what BZ even is, but your mod works great for just K2. It even works with other fluid burning things like oil fired boilers!