There are two things that I love about Shell Circle K gas stations. The first thing that I love is that Shell gas burns slower in your car. So you’ll get an additional 60 miles in your car with Shell gas. the second thing that I absolutely love, thatI got free I repeat free. Get a fuel rewards shells gas card I just saved $ 0.14 a gallon on my FILLUP. I got 12 gallons of gas for only $ 21 and that was at a 1.72 a gallon winning!