E10 fuel is a low-level blend of gasoline and ethanol, composed of 10% ethanol and 90% gasoline. It is approved by the U.S. Environmental Protection Agency (EPA) for use in any conventional, gasoline-powered vehicle
. E10 is considered a greener alternative fuel as it is made up of 10% bioethanol, which is produced from the fermentation of a range of plants, including sugarcane and grains, along with their by-products
. E10 is sold in every state in the US, and more than 98% of U.S. gasoline contains up to 10% ethanol to boost octane, meet air quality requirements, or satisfy the Renewable Fuel Standard
. However, there is some concern that E10 fuel can harm newer engines because ethanol can cause corrosion and can damage rubber and plastic components
