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  1. DanielD

    Diesel at Speedway

    I am looking for best Diesel Fuel in Chicago area, I have Mobile 1 and Speedway gas stations, which one is better? Speedway : 1. Speedway No 2 Low Sulfur Diesel 500 ppm Sulfur Max 2. Speedway No 2 Ultra Low Sulfur Diesel 15 ppm Sulfur Max...