Image Full Size Small Preview Thumbnail Propel Fuels, a leading low carbon fuel retailer, has opened the company’s first Flex Fuel E85 station in Washington State, partnering with the Road Warrior Travel Center to introduce a new low cost, high performance fuel choice to the Yakima Valley. (Photo: Business Wire) Propel Fuels, a leading low carbon fuel retailer, has opened the company’s first Flex Fuel E85 station in Washington State, partnering with the Road Warrior Travel Center to introduce a new low cost, high performance fuel choice to the Yakima Valley.