Don,

I have wondered the same thing - however there have been times when I've
come close to running out - sure it was because I didn't plan well - but
I've considered carrying a small can on longer trips.

Maybe our Canadian members can chime in (to confirm or correct) on what I am
about to say. I've found that traveling in Canada (401/402 Sarnia, ON to
Kingston, ON)  that gas isn't always available when you might expect it.
They have wonderful service station/rest areas along the express way and for
the most part those are right there when you need them - however should you
miss one and need to exit to get gas I've found that unlike the US - there
isn't always a gas station waiting near the exit. I've exited before to find
I'm in a very rural area and the nearest town - well let's just say it
wasn't real apparent which way to go to find it.

I'll readily admit this was probably mostly due to my unfamiliarity with
where we were - but it certainly made me consider carrying at least a small
amount of gas.

--
Thanks,

Jeff
'85 GL (Gertie)
'90 Carat (Grover - the noble parts donor)
'86 (We call this one Scrap)
'78 Bus (Melissa) Patty's Bus