Hey Canadians! Any suggestions about which company sells the best gasoline?

    I only feed my monster high octane gas, of course, but I’m curious about which gas chain sells the best quality gas. Shell and Esso have a 93, Chevron has a 91 and PetroCanada has a 94, and they all say they have different additives. I don’t see that PetroCan is a member of the Top Tier program...