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Petroleum and gasoline facts. Help in understanding octane and gasoline pricing.


  • B10

    The Weights and Measures Division of the Minnesota Department of Commerce wants to help you understand and be ready for the change in the minimum biodiesel content to 10%.

  • Biodiesel

    Information about biodiesel and requirements.

  • Gasoline Octane Facts

    Facts and myths to help in understanding gasoline octane.

  • Gasoline Pricing Facts

    Facts about gasoline that may help you make choices and decisions and good tips on how you can make your gasoline dollars go further.

  • Petroleum Contamination

    Info on how we monitor petroleum quality by checking all motor and heating fuels.