Ontario Costco Gas Prices

Costco operates 27 fuel centers in Ontario across 21 cities, with the largest cluster in Etobicoke (2 stations). Across the province, regular gas averages 174.9¢, premium runs about 24.7¢ higher at 199.5¢, and diesel sits at 193.9¢. The lowest-priced regular pump is at Costco N Mississauga in Mississauga at 168.9¢, while Sudbury in Sudbury sits about 11.0¢ higher. Across the province, regular pump prices have eased about 1.6¢ over the past week, from 176.5¢ a week ago. Premium has eased about 1.9¢ and diesel has eased about 3.0¢ over the same period. Diesel is sold at 1 of the 27 Ontario locations.