dieharder wrote:
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Along the way between Toronto and Ottawa, just past Kingston, you'll see an exit (exit 556) for a town called Shannonville. Take a right at the exit and it's a short drive (about a mile or two) to the indian reserve where you'll find the least expensive gas in the entire area by a loooooong shot. Just today I'm seeing prices reported that are 15 cents a litre (57 cents/gallon) less expensive than here in Ottawa. On google maps, I see when you get to the main intersection, take a left and there is a gas station that will have no problem with a rig your size.
I often buy gas there since it's on the route to Sandbanks but if you have a DP, some of the stations sell dyed diesel (although it is clearly marked).