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Blending relatively low levels of alternative fuels with conventional fuels is an important option for reducing petroleum use and an important strategy in the Clean Cities Program portfolio.
For more on program efforts to advance fuel blends, see our Fuel Blends Strategy page.
Examples of blends include E10 (10% ethanol/90% gasoline), B5 (5% biodiesel/95% diesel), and B2 (2% biodiesel/98% diesel). Blends can also consist of two types of alternative fuels, such as hydrogen and compressed natural gas (HCNG), which might be a combination of 20% hydrogen and 80% CNG, for example. Many coalition stakeholders use blended fuels in their fleet vehicles.
Use these pages to learn more about ethanol, biodiesel, and hydrogen/CNG blends.
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