Fuel without ethanol is primarily utilized in applications where the potential drawbacks of ethanol-blended gasoline outweigh the benefits. These applications typically involve small engines, vintage vehicles, and aviation. The absence of ethanol helps prevent issues such as fuel system corrosion, material degradation (particularly in older rubber and plastic components), and water absorption, which can lead to phase separation and engine malfunctions. For example, lawnmowers, chainsaws, and other power equipment often perform better and require less maintenance when fueled by this type of gasoline.
The significance of this type of fuel lies in its ability to ensure the longevity and reliability of engines not designed to withstand the properties of ethanol. Vehicles manufactured before the widespread adoption of ethanol-blended fuels can experience significant damage due to ethanol’s corrosive nature. Furthermore, the lower energy content of ethanol compared to gasoline means that vehicles operating on fuel lacking this additive often achieve slightly better fuel economy and power output. The historical context involves the growing awareness of ethanol’s potential problems in specific applications, leading to the continued availability of this alternative fuel option.
