[pct-l] Surface mail - Gas Canisters

[Frank Dumville]

Here's a good summary about shipping fuel.
http://www.gottawalk.com/shipping_fuel.htm

The brief answer for the US Postal Service is that fuel goes surface mail only. 
I suggest sending fuel separately. Surface mail can take a very long time to reach it's destination and you don't want to delay the arrival of the rest of your resupply parcel.

Frank