The price of gas at the pump hits Canadians directly when they fill up their cars. They pay, they suffer and they move on. They grumble, they hate you, but that is your problem.
The price of diesel hits everyone, because it has an impact on public transportation and on the cost of goods that have to be transported. This impact is more insidious and much more long-term than the price of ordinary unleaded gas. Naively, I always imagined that it cost much less to refine diesel than to refine gasoline because, for diesel, the processing is shorter and it uses things that you do not have to remove, except sulphur now.
Can you help a simple soul like me to understand why a product that costs less to refine costs more to buy?