A service station is a retail fuel vendor that provides far more services then just selling gasoline. W.O.Stinson is a growing Canadian fuel distribution company based in Ottawa and they have in recent years expanded their number of service stations significantly in the direction of your precious Greater Toronto Area. There is a brand new one that just opened in Napanee.

on the map of Ontario, Napanee is only about one inch away.
Alternatively, you could go to the pits at your local race track and during their very short hours of operation, flash your CMA competition license and qualify to purchase race fuel from them at nearly twice the price.
... leaded fuel destroys catalytic converters and recent model street motorcycles all have one of those.