>So how am I supposed to know how much steamroller fuel to buy if you won't even tell me which island you live on?

Fine, a small hint. The island is surrounded by the ocean. I know, I know I might be giving too much away for one as clever as you but I have faith you'll never get the steamroller here.

I mean, it's not like you've demonstrated a mind for interesting devices and you certainly couldn't make an engine that wouldn't be flooded by driving underwater or anything.