Karl GMC Marshalltown IA

Resources

Tools and tips for getting the most MPG out of your vehicle.

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  Gas Savings Tips

  Inflating your tires, watching your speed and checking your route are a few examples of how you can save gas. [More coming soon!]

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  Gas Price Averages

  Charts and prices for the nation. All data is collected from the U.S. Department of Energy.

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  Alternative Fuel

  Learn about the various sources of fuel that can be used for motor vehicles.