Carrying extra fuel in Canada

If this is going to be a one time deal, go with a couple of ~5 gallon fuel cans and secure from tipping (box or milk crates) in your truck bed, just for your peace of mind. In all the posts (Alaska) that I’ve read, I don’t think that I read about anyone running out of fuel. Definitely do not bypass the first gas station you see, there probably is not another on the other side of the town, I learned that lesson in northern Ontario where gas station and towns can be 100 miles apart. Increase your budget for fuel and grin and bear it when you find out that the $1.50 litre translates closer to $6.00 a gallon.
Legalities, none that I’m aware of, if there were any, just about everyone has broken the law.

Ken