[ujiro]

Propane = green gas. Green gas just has a pre-added lubricant. So, pick up an AI gun gas kit (for sale at the ASC Mart, ad is on the top of the page), and go down to Canadian tire and pick up the Coleman propane tanks (mini ones for camping).

BTW, this question has been asked and answered about a million times. Please just use the search function next time to see if your question has already been asked before making a new thread.