Originally Posted by Dracheous
Actually, it'd be a good choice for gas in the GBB's, its "odorless." NO MORE CABAGE SMELL! Just not as easy to stock up on. Nor is it as in-expensive as Propane.
Propane is odourless too. Odour is added by the bottling company as a safety feature, and I'm betting it's the same with propene/propylene.