Download the GasBuddy app on your cell phone. You can select any grade of gas or select diesel. Hit the button so it will find your location and BINGO! It brings up fuel stations wherever you are at. Click the map button and you'll see where they are at. Follow the map and it will lead you right to them. We use Gas Buddy all the time when traveling. It's absolutely great! Plus, it give the price per gallon also. It's usually right spot on.
Click here and try it. No need to sign in. You can create a sign in if you want to earn points or report fuel prices. But the app works just fine without signing in. I never have.