There was a recent suggeston/bug discussion about semiliquid generators & creosote in this section. I'd link to it but I cannot (I'm a newb).
In my creative mode Semiliquid Generators can burn creosote. When I build the exact same structure in Survival mode it will not burn creosote. That looks like a bug to me, or at least it looks suspiciously inconsistent. I understand from the previous discussion that there was no plan to make creosote work this way, but if it works in creative it surely ought to work in Survival.
So what's the deal - Is Railcraft's creosote supposed to be a valid fuel-source for a Semiliquid Generator or not?
I'm running IC2 2.0.316-experimental, the version that was bundled into the DW20 mod-pack.