Well I got directed to Coleman's website on another board and they have this:
Can I use unleaded gas instead when Coleman® Fuel is recommended?
Unleaded gas should only be used in Coleman® appliances marked as “Dual Fuel™” or Unleaded Fuel” and only the lowest octane unleaded gas available should be used. Unleaded gas contains additives that are more difficult to vaporize than the gas itself and the higher the octane rating of the fuel, the more additives mixed with the gas. Unleaded gas from Canada should never be used in any Coleman® appliance, even the “Dual Fuel™” and “Unleaded”, as there is an additive in the fuel which will damage the tank, valve, generator and burner assembly.
Coleman® “Dual Fuel™” and Unleaded” appliances have been designed to handle the additives in unleaded gas. The use of unleaded gas in any Coleman® appliance designed for use only with Coleman® Fuel can result in a rapid build-up of carbon in the generator and damage to the rust-resistant coating inside the fuel tank. The cost savings in using unleaded fuel in a Coleman® Fuel appliance would be rapidly offset by the cost of replacing the generator and eventually the fuel tank or entire appliance.
http://www.coleman.com/coleman/faq/faqreturn.asp?question=16
I had actually looked on their website and didn't find their FAQs originally. Now correct me if I'm wrong, but white gas is only a more refined version of unleaded. I can understand the additives part, and I can even imagine it gumming things up a little faster, but I can't imagine it being cost effective for them to produce two different setups.
Looking at the parts, they appear the same (not that that's scientific I know). I was hoping to be able to just swap the generator or maybe even just buy another tank with regulator/generator but I can't find them without either buying the whole stove or buying the seperate parts.
Hmm, maybe I'll just hit up Ebay for a used one.........
I had thought about buying the propane conversion, but I'm kind of partial to the gas for some reason- Probably nostalgia from camping with my folks when I was a kid is the only reason I can think of.
I had one of those refill adaptors to fill your one pound tank off a twenty pounder but I can't find it.