Does flex fuel get worse mpg? This is a common question among drivers who are considering switching to flex fuel vehicles. Flex fuel vehicles, also known as E85 vehicles, are designed to run on a blend of gasoline and ethanol, which is a biofuel made from corn. While the idea of using a renewable fuel source is appealing, many drivers are concerned about the impact on fuel efficiency. In this article, we will explore the potential effects of flex fuel on miles per gallon (mpg) and provide some insights into how to optimize your vehicle’s fuel efficiency.
Firstly, it’s important to understand that the fuel efficiency of a flex fuel vehicle can vary depending on several factors. One of the primary factors is the ethanol content of the fuel. E85 fuel contains 85% ethanol and 15% gasoline, while traditional gasoline contains no ethanol. Ethanol has a lower energy content than gasoline, which means that a higher percentage of ethanol in the fuel can lead to a decrease in mpg.
According to the U.S. Department of Energy, flex fuel vehicles can achieve up to 25% fewer miles per gallon when running on E85 compared to gasoline. This is due to the lower energy content of ethanol, which requires more fuel to produce the same amount of power as gasoline. However, this decrease in mpg does not necessarily mean that flex fuel vehicles are less fuel-efficient overall.
Another factor to consider is the driving conditions and habits. Flex fuel vehicles can be optimized for better fuel efficiency by adjusting the driving style and maintaining regular maintenance. For example, driving smoothly and avoiding rapid acceleration can help improve mpg, regardless of the fuel type. Additionally, keeping the vehicle’s tires properly inflated and ensuring regular oil changes can also contribute to better fuel efficiency.
It’s also worth noting that the cost of E85 fuel can vary significantly compared to gasoline. While E85 is generally less expensive per gallon, the lower energy content means that more fuel is required to travel the same distance. This can offset the cost savings and make the overall fuel efficiency of a flex fuel vehicle similar to or even worse than that of a traditional gasoline vehicle.
In conclusion, while flex fuel vehicles can experience a decrease in mpg when running on E85 compared to gasoline, the overall fuel efficiency is not necessarily worse. By optimizing driving habits and maintaining regular maintenance, drivers can maximize the fuel efficiency of their flex fuel vehicles. Additionally, considering the cost of fuel and the energy content of ethanol, drivers should weigh the benefits and drawbacks before making the switch to flex fuel.
