Don't need a licence to fill it the service sattion attendants do

but you must have it inspected and approved.
Milage is almost identical to gasoline, only its 20 cents cheaper / litre here.
Octane in Aberta is between 102 and 104 depending on the time of year.
I got the parts through the " Calgary's bargain finder
http://buysell.com/ " just need patience heh.
Fill time isn't that long my dad has made/owned no less than 4 trucks/vans that run on propane with 11.5:1 compression. They all went like hell and even a truck sized tank 80L or so filling was about same as gas.
I expect to be on the street in a month or two ( I work slow.)