95E10

95E10 is a gasoline blend commonly used as fuel for internal combustion engines. The designation refers to a mixture containing 95% gasoline and 5% ethanol by volume. Ethanol is an alcohol produced from the fermentation of sugars and starches, often derived from sources such as corn, sugarcane, or cellulosic materials.

The addition of ethanol to gasoline is primarily driven by several factors. Ethanol is considered a renewable fuel, which can help reduce reliance on fossil fuels and potentially lower greenhouse gas emissions compared to pure gasoline, although the net environmental benefit is a subject of ongoing debate and depends on the production methods. Ethanol also has a higher octane rating than gasoline, which can contribute to improved engine performance and prevent knocking.

Most modern gasoline engines are designed to operate on blends containing up to 10% ethanol without requiring significant modifications. However, older vehicles or those with specific fuel system components may be sensitive to ethanol content, as it can be corrosive to certain materials like rubber and plastic. Therefore, it is generally recommended to consult vehicle manufacturer guidelines regarding compatible fuel blends. The widespread availability of 95E10 and similar ethanol blends varies geographically, with some regions having mandates or incentives for their use.