The price for premium gas blends is as much as 15 cents more per litre than regular gas. Gas companies make the pitch that premium's better for your car.
While it's true that some car makers recommend putting premium fuel in their high-end models, what about most of us who drive regular cars?
Marketplace takes on Canada's big gas station chains and asks whether Canadians are being misled into paying millions more at the pumps than they need.
It's the Marketplace gas challenge: Premium vs. Regular. You won't believe what we find out