
Flex fuel, also known as E85, is a blend of 85% ethanol and 15% gasoline that can be used in vehicles designed to run on it. While flex fuel prices have been falling and are cheaper than regular gasoline, drivers may need to fill up more frequently as ethanol contains less energy. In Texas, more than 450,000 drivers own flex-fuel vehicles, and H-E-B has recently introduced E85 at selected fuel stations to cater to this market.
| Characteristics | Values |
|---|---|
| Price of flex fuel in Texas | $2.35 to $2.70 per gallon |
| Price of regular gasoline | $3.54 per gallon |
| Difference in price | Flex fuel is about $1 less per gallon than regular gasoline |
| Number of flex-fuel vehicles in the US | Over 10.6 million |
| Number of flex-fuel vehicles in Texas | Over 450,000 |
| Number of stations selling flex fuel | 2,300 in the US |
| Number of stations selling flex fuel in Texas | 5 |
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What You'll Learn

Flex fuel is cheaper than gasoline
Flex fuel is a blend of ethanol and gasoline designed for specific vehicles. It is a cheaper alternative to gasoline, with prices about \$1 less per gallon, according to the Kiplinger Agriculture Letter. The national average price of E85 is \$2.77, while the average price of a gallon of gas is about \$3.54. This makes flex fuel 32% cheaper than traditional gasoline.
However, it is important to note that flex fuel is not as efficient as gasoline. Vehicles get 25% poorer mileage when burning flex fuel, which means more frequent fill-ups. For example, a 2014 Ford Focus gets 40 mpg on the highway with gas but only 28 mpg with E85. Despite this, due to the significant price difference, flex fuel can still result in a lower cost per mile.
The savings from using flex fuel depend on your vehicle's fuel economy for each type of fuel. To determine which fuel is cheaper for your vehicle, you can use a formula that compares the price per mile of flex fuel and regular gasoline. This involves dividing the price of flex fuel by its fuel economy and doing the same for regular gasoline. Whichever option gives a lower number is the cheaper fuel.
Additionally, it is crucial to ensure your vehicle is compatible with flex fuel. While there are over 20 million flex-fuel vehicles on America's roads, not all cars are designed to run on flex fuel. Using flex fuel in an incompatible vehicle can cause damage to fuel lines, O-rings, and other plastic parts. Therefore, it is essential to check your owner's manual or look for an E85 label on the fuel door or a badge on your car indicating compatibility.
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Flex fuel vehicles are common
Flex-fuel vehicles, also known as flexible-fuel vehicles (FFVs), are becoming increasingly common. As of 2022, there were over 20.9 million FFVs in the United States, up from 10.6 million in 2014. This increase in popularity can be attributed to several factors, including the growing awareness of flex-fuel benefits, advancements in technology, and the availability of alternative fuel sources.
One of the main reasons flex-fuel vehicles are gaining popularity is the increasing awareness of their benefits. Flex-fuel vehicles offer a range of advantages over traditional gasoline-only vehicles. For example, flex-fuel vehicles can run on various blends of gasoline and ethanol, with some capable of using pure gasoline, pure ethanol, or any combination of both. This flexibility allows drivers to choose the most cost-effective and environmentally friendly fuel option. Additionally, flex-fuel vehicles often have improved acceleration performance when operating on higher ethanol blends, and consumers who drive them may receive tax credits that can reduce or eliminate their tax obligations.
The advancements in technology have also played a crucial role in the growing popularity of flex-fuel vehicles. Modern flex-fuel cars are equipped with advanced technology, such as electronic sensors, that can detect the fuel blend and make necessary adjustments to operate efficiently. These technological advancements have improved the performance and flexibility of flex-fuel vehicles, making them more attractive to consumers.
Another factor contributing to the commonality of flex-fuel vehicles is the availability of alternative fuel sources, such as ethanol. Ethanol is an environmentally friendly and economical fuel source that is sustainably produced from ingredients like cane sugar and corn. As more ethanol refining plants open, and consumers seek more sustainable options, the demand for flex-fuel vehicles capable of using ethanol is likely to increase.
It is worth noting that flex-fuel vehicles often look no different from their gasoline-only counterparts, and many vehicle owners may not even realize they own an FFV. This lack of distinction in appearance, along with similar sale prices, has contributed to the commonality of flex-fuel vehicles as consumers can unknowingly make the switch to alternative fuel sources without any additional effort or expense.
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Flex fuel is an ethanol-gasoline blend
Flex fuel, also known as flexible fuel or E85, is an ethanol-gasoline blend. It is a special technology that enables engines to run on more than one type of fuel simultaneously. Flex-fuel vehicles (FFVs) are designed to operate on a blend of gasoline and ethanol, with ethanol content ranging from 0% to as high as 85% in the standard E85 blend. Modern flex-fuel engines can burn any proportion of the blend as fuel injection and spark timing adjust automatically according to the blend detected by a fuel composition sensor.
Ethanol-blended fuel is becoming more common, particularly among enthusiasts. The high-octane ethanol provides a performance boost both on the road and on the track. Additionally, ethanol is made from renewable plant materials such as corn and sugarcane, and it burns cleaner than gasoline, helping to reduce emissions and lessen our reliance on fossil fuels.
While flex-fuel vehicles offer versatility and sustainability, there are some considerations when choosing this option. Firstly, the fuel economy (miles per gallon) is generally lower with increased levels of ethanol as engines are optimized for gasoline. This means that, although flex fuel can be cheaper per gallon, you may end up filling up more frequently, which could wipe out any savings. Secondly, flex fuel may be harder to find as there are only about 2,300 stations that sell E85 in the US.
Despite these considerations, flex-fuel technology offers a compelling solution for those seeking flexibility, sustainability, and innovation in their vehicles. With over 10.6 million flex-fuel vehicles on the road in the US, this technology is becoming increasingly popular and accessible.
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Flex fuel availability in Texas
Flex fuel, or E85, is a blend of 85% ethanol and 15% gasoline that can be used in vehicles designed to run on it as well as regular gasoline. There are about 2,300 stations that sell E85 in the United States, and many major gas station chains sell it, including Shell, Exxon, BP, Casey's, Sheetz, Kum & Go, and Maverik, among others.
The availability of E85 varies by region, with the fuel being more common in Midwestern states where ethanol production is higher. In urban areas, E85 is often available at larger fueling stations, especially near highways and major intersections. In rural areas, it may be harder to come by, but truck stops and agricultural regions tend to have more E85 options.
In Texas, E85 prices range from $2.35 to $2.70 per gallon at filling stations in the Midwest, with a national average of $2.77 per gallon. The average price of a gallon of gas in Texas is about $3.54, making E85 a cheaper alternative.
However, it is important to note that when using E85, you get fewer miles per gallon because ethanol contains less energy. For example, a 2014 Ford Focus gets 40 mpg on the highway with gas but only 28 mpg with E85. So, while E85 may be cheaper per gallon, you may need to fill up more frequently, which could wipe out any savings.
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Flex fuel's impact on mileage
Flex fuel, or flexible fuel, is an alternative to gasoline that is made from a combination of gasoline and methanol or ethanol. Flex-fuel vehicles (FFVs) are those that have internal combustion engines designed to run on more than one type of fuel.
The impact of flex fuel on mileage depends on a few factors. Firstly, it depends on the type of vehicle. While some experts assert that flex-fuel vehicles have similar mileage to regular fuel-powered vehicles, others claim they have lower gas mileage. For example, a 2014 Ford Focus gets 40 miles per gallon on the highway with gasoline but only 28 miles per gallon with E85, according to FuelEconomy.gov. However, a higher blend of regular gasoline and flex fuel (usually E40 to E60) can keep a vehicle's MPG about the same.
Secondly, the impact on mileage depends on the ethanol content of the flex fuel. The higher the ethanol content, the lower the MPG. E85, for example, is a blend of 85% ethanol and 15% gasoline, and it is common to get lower MPG with this blend. However, it is possible to find E85 with lower ethanol content, which will increase the MPG.
Despite the potential for lower MPG with flex fuel, the lower price of ethanol compared to gasoline means that it is still possible to save money by using flex fuel. For example, in June 2021, the average price for E85 in California was $2.85, while the average price for gasoline was $4.22, making E85 32% cheaper. Therefore, even with a 25% decrease in fuel economy, the use of E85 can result in overall cost savings.
In addition, flex fuel has benefits beyond potential cost savings. Ethanol burns cleaner than gasoline, resulting in fewer toxic fumes and less environmental pollution. Consumers who drive flex-fuel cars also receive tax credits that can significantly reduce or even eliminate their tax obligation.
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Frequently asked questions
Flex fuel, also known as E85, is a blend of 85% ethanol and 15% gasoline. It can be used in vehicles designed to run on it, as well as those that use regular gasoline.
The price of flex fuel varies across the United States. In the Midwest, E85 prices range from $2.35 to $2.70 per gallon. The national average is $2.77 per gallon. In Texas, HEB, a grocery chain, introduced E85 at a discounted rate of 30 cents less per gallon than unleaded gasoline.
HEB offers E85 at five fuel stations in Texas, located in Schertz, Buda, Austin, Killeen, and Waco.
















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