Costco Gas Bar Downsview

The Downsview Costco gas bar at 100 Billy Bishop Way sits just off Wilson Avenue beside the 401/Allen Road interchange in North York, next to Yorkdale’s retail orbit. It is one of the busiest fuel sites in the city — the combination of warehouse traffic and highway access keeps the lanes moving all day.

Access requires an active Costco membership, with Mastercard or debit at the pump. Its price consistently ranks among the lowest in North York, which pulls the surrounding chains along Dufferin and Wilson down to compete. If the queue looks long, remember it moves faster than it appears — but Saturday mornings and the after-work rush are best avoided if you have the choice.