OK, so I've done this trip MANY times:
Winnipeg - Thunder Bay - WaWa - S.S. Marie - North Bay - Ottawa - Montreal - Reverie-du-Loupe - Moncton - Amherst NS.
I think I know most of the skunks and porcupines on the route BUT next year (2018) we will be driving a MUCH larger trailer (34' Fifth) and a diesel truck.
So knowing the limiting factor in refueling is the ridiculously small fuel tank (96 liters / 25 US gallons) and leaving a safety margin my effective range is (1/3 tank as safety margin) 150 - 175 miles (240 - 280 km) at average 10 miles / gallon. (I'm old school and still think in mpg).
SOOOOooooo at last the question(s) .... I have good options within that parameter until I get to
MATTAWA ONTARIO - Basecamp ID's 3 Fuel locations (verified by Google Earth) .... looking at ground level none seem capable of navigating in a 45 foot long rig.
ARNPRIOR ONTARIO - Shell I've used before - but now seems to tight.
RIGAUD QUEBEC - no good options I can see.
ST FLAVIN QUEBEC ** OR AREA - no good options I can see.
St-Alexandre-de-Kamouraska QUEBEC ** OR AREA - no good options I can see.
The rest of the trip seems OK ...... I've checked all resources that I can think of (the best resource is Google Earth), many Truck / Flying J stops when viewed at street level or Google Earth (overhead) seem OK for Semi's but the area for cars / trucks is not usable.
BTW - really ... really ..... really don't want to play with the big boys ....