Availability of diesel in W. Canada - the more remote places

We have traveled up to the Yukon, Alaska and the North West Territories starting back in 1992 for the 50th anniversary of the Alaska Highway with a diesel pickup hauling a 5th wheel RV and have never had a problem getting fuel. Keep the tank topped up and don't run on fumes and you will be OK. If you have enough capacity you can save some $$ by filling in the larger centers.