Mercedes Mullins
Flex-fuel vehicles (FFVs) are capable of running on either regular gasoline or E85, a combination of 85% ethanol and 15% gasoline. The first commercial flexible fuel vehicle was the Ford Model T, produced from 1908 to 1927, and FFVs have been growing in popularity since. In this article, we will explore the history of flex-fuel vehicles, the advantages and disadvantages of E85, and how to determine if your car is an FFV.
| Characteristics | Values |
|---|---|
| Number of flex-fuel vehicles in the US | 21 million by the end of 2017 |
| Flex-fuel vehicles in other countries | Brazil has the largest fleet of flex-fuel vehicles in the world; Thailand also has some |
| Flex-fuel vehicles in Europe | Volvo offers some models in the European market; Peugeot and Renault offer models in Sweden, Benelux, France and Switzerland |
| Flex-fuel vehicles in Brazil | Hyundai, Kia, Mitsubishi, Nissan, Volkswagen |
| Flex-fuel vehicles in Thailand | Mitsubishi, Nissan |
| Flex-fuel vehicles in North America | Ford, General Motors |
| First flex-fuel vehicle | Ford Model T, produced from 1908-1927 |
| Flex-fuel vehicles can run on | Gasoline, ethanol (blends up to E85), or a combination of the fuels in the same tank |
| Ethanol content in E85 | Up to 85% ethanol |
| Ethanol content in E85 in winter | Reduced in some regions to avoid cold-weather starting problems |
| Ethanol content in E85 in summer | Up to 83% ethanol |
| Ethanol production | Typically from corn; some producers also use cane sugar or agricultural waste products |
| Environmental impact of ethanol | Reduced greenhouse gas emissions, improved combustion, less oil used |
| Flex-fuel vehicle identification | Yellow fuel cap, badge or decal indicating E85 use allowed, character in the vehicle identification number |
Explore related products
What You'll Learn
History of flex-fuel vehicles
The history of flex-fuel vehicles (FFVs) dates back to the early 1900s when various fuels, including gasoline, diesel, alcohols, and electricity, competed for dominance in the automotive transportation market. Petroleum emerged as the clear winner and remained the primary fuel source until the 1973 oil crisis. This crisis sparked a renewed interest in alternative fuels, particularly methanol and ethanol, which could be produced domestically. Of the two, ethanol won out due to its lower toxicity, potentially greener production process, and support from political groups like the Iowa corn growers lobby.
The term "flexible-fuel vehicle" (FFV) or "dual-fuel vehicle" (colloquially called a flex-fuel vehicle) refers to an alternative fuel vehicle with an internal combustion engine designed to run on multiple fuels or fuel blends, usually gasoline blended with ethanol or methanol fuel. The technology for FFVs was created in 1980, and manufacturers began producing them in 1988 after the Alternative Motor Fuels Act passed, which provided credits for the production of vehicles that ran on alternative fuels.
Henry Ford's iconic Model T, built from 1908 to 1927, featured carburetor jets that could be adjusted to run on gasoline, ethanol, or a mix of the two, making it the first commercially produced "flex-fuel" vehicle. However, it wasn't until the late 1990s that ethanol FFVs became commercially available, with Ford introducing the first commercial FFV in 1996. By 2006, Ford, GM, and Chrysler had pledged to double their FFV production, and other manufacturers like Audi, Nissan, VW, Mercedes, and Toyota also entered the market.
In the United States, flex-fuel vehicles are commonly known as "E85 vehicles" as they are optimised to run on E85, a blend of 85% anhydrous ethanol fuel and 15% gasoline. The use of ethanol blends such as E85 can reduce greenhouse gas emissions, improve combustion, and decrease the use of oil, making it a more environmentally friendly option. Brazilian flex-fuel vehicles, on the other hand, are designed to run on a wider range of ethanol blends, from E20-E25 gasoline to 100% hydrous ethanol fuel (E100).
As of 2022, there were over 20.9 million FFVs in the United States, with a concentration of 27 million in the US market by the end of 2021. Brazil leads the world in FFV adoption, with 30.5 million light-duty vehicles and over 6 million motorcycles as of March 2018. Europe, led by Sweden, and Canada are also significant markets for FFVs.
The Role of Fuel Pumps in Cars: Powering Your Vehicle
You may want to see also
Explore related products
How to identify a flex-fuel vehicle
The first commercial flexible-fuel vehicle was the Ford Model T, produced from 1908 to 1927. Since then, many car manufacturers have provided engines for ethanol fuel use.
Flex-fuel vehicles (also known as flexible-fuel vehicles or FFVs) can run on either gasoline or alcohol-based fuels like E85. The most common form of ethanol-based gas is E85, which contains up to 83% ethanol content during the summer months and a reduced amount in the winter in some regions to avoid cold-weather starting problems.
- Look for a ""flex fuel" badge or decal on the body of the car. Some automakers clearly mark FFVs with badging or a high-quality sticker on the exterior body, often featuring a logo with some variant of the word "Flex". For example, GM uses badging with the text "Flexfuel/E85 Ethanol" to indicate an E85 FFV.
- Check for a yellow fuel cap or a yellow ring around the filler. Since 2006, many new FFV models in the US feature a bright yellow gas cap to indicate E85 compatibility.
- Refer to the owner's manual. The owner's manual will confirm if your vehicle can use E85 fuel.
- Check the vehicle identification number. FFV models typically have a specific character in the vehicle identification number that indicates E85 compatibility. For example, for Chrysler models, the last letter of the 12-character Test Group Name posted on the Vehicle Emissions Control Information label (found under the hood) can be used to determine E85 compatibility.
- Look for a decal under the fuel door. Some FFV models have a decal or sticker under the fuel door indicating that E85 use is allowed.
- Check the fuel door. In some cases, the fuel door itself may indicate whether the vehicle is E85 compatible.
Using 88 Octane Fuel: Is It Safe for Your Car?
You may want to see also
Explore related products
$11.99
Flex-fuel vehicles in the US
Flex-fuel vehicles (FFVs) are designed to run on gasoline or a blend of gasoline and ethanol. The most common form of ethanol-based gasoline is E85, which typically contains 51% to 83% ethanol, depending on geography and season, although it can contain up to 85% ethanol.
The fleet of flexible-fuel vehicles in the United States is the second largest in the world, with over 21 million E85 flex-fuel vehicles registered by the end of 2017, up from about 11 million in 2013. Despite this, the actual use of ethanol fuel is limited due to the lack of E85 refuelling infrastructure and because many North American flex-fuel car owners are unaware they own an E85 flex-fuel vehicle.
Flex-fuel vehicles are becoming increasingly common in the Midwest, where corn is a major crop and is the primary feedstock for ethanol fuel production. Ethanol is a preferred fuel as it is a biomass fuel, addressing climate change and greenhouse gas emissions concerns. However, ethanol production is not without its drawbacks, as extensive farming can lead to soil erosion, deforestation, and water pollution.
Flex-fuel vehicles include Ford's F-150 and Taurus, Chevrolet's Silverado 1500, Impala, and Tahoe models, Chrysler's Town and Country, Nissan Titan and Armada, and Dodge Ram 1500 and Jeep Grand Cherokee. These vehicles often have a yellow fuel cap and a badge indicating E85 compatibility.
Calculating Car Fuel Consumption: A Guide to MPG
You may want to see also
Explore related products
Flex-fuel vehicles in Brazil
Brazil has the world's largest fleet of flexible-fuel vehicles. By March 2018, there were 30.5 million flex-fuel cars and light-duty trucks registered in the country, and over 6 million flexible-fuel motorcycles. In 2012, flex-fuel autos and light commercial trucks represented 88.6% of all light-duty registrations.
The Brazilian government made the use of ethanol blends with gasoline mandatory after the 1973 oil crisis. Neat ethanol-powered cars (E100 only) were launched to the market in 1979. However, ethanol-only cars fell out of favour in the late 1980s due to a shortage of supply and sharply falling gasoline prices.
Flexible-fuel technology was developed by Brazilian engineers in the late 1990s. In March 2003, Volkswagen do Brasil launched the Gol 1.6 Total Flex, the first commercial flexible-fuel vehicle capable of running on any blend of gasoline and ethanol. By 2010, several other manufacturers were producing flexible-fuel vehicles, including Chevrolet, Fiat, Ford, Peugeot, Renault, Honda, Mitsubishi, Toyota, Citroën, Nissan, and Kia Motors.
Brazilian flex engines are designed with higher compression ratios, taking advantage of the higher ethanol blends and maximising the benefits of ethanol's higher oxygen content, resulting in lower emissions and improved fuel efficiency. Brazilian flex cars can run on just hydrated ethanol (E100), a blend of gasoline with 20 to 25% anhydrous ethanol, or any combination of both fuels. Pure gasoline is no longer sold in the country, so all Brazilian automakers have optimised flex vehicles to run with gasoline blends from E20 to E25.
The flexibility of Brazilian flex-fuel vehicles (FFVs) allows consumers to choose the fuel depending on current market prices. Ethanol has a lower fuel economy than gasoline, so flex cars running on ethanol get lower mileage than when running on pure gasoline. However, this is offset by ethanol's usually lower price per litre.
Understanding Your Car's Fuel Meter: A Guide
You may want to see also
Explore related products
Pros and cons of flex-fuel vehicles
The first commercial flexible fuel vehicle was the Ford Model T, produced from 1908 to 1927. Since then, many car manufacturers have introduced flex-fuel vehicles, including Ford, General Motors, Honda, Hyundai, Kia, Mitsubishi, Nissan, Peugeot, Renault, and Volvo.
Pros of flex-fuel vehicles
Flex-fuel vehicles have several advantages over traditional gasoline-powered vehicles. Firstly, they emit fewer emissions and greenhouse gases, making them more environmentally friendly. The vehicles are equipped with electronic sensors that gauge the blend of fuel and adjust the fuel injection and timing accordingly. This technology allows flex-fuel vehicles to burn different proportions of ethanol and gasoline, while conventional engines can only burn fuels with a small amount of ethanol. Additionally, ethanol is sustainably produced from crops such as corn and sugarcane, reducing reliance on imported oil. Furthermore, consumers who drive flex-fuel cars may be eligible for tax credits that can reduce or eliminate their tax obligations.
Cons of flex-fuel vehicles
However, there are also some disadvantages to consider before purchasing a flex-fuel vehicle. Firstly, flex fuel is not as economical as gasoline, and only a small percentage of gas stations supply ethanol. Flex-fuel vehicles may also have lower mileage than their gasoline counterparts due to the lower energy density of ethanol. Additionally, ethanol absorbs dirt easily, which can potentially corrode and damage the engine. The production of ethanol from crops can also impact the crop economy, potentially driving up the price of animal feed. Finally, flex-fuel vehicles have limited availability and may not be suitable for all drivers or regions.
The Dangers of Mixing Diesel and Petrol Engines
You may want to see also
Frequently asked questions
A flex-fuel car is an automotive drivetrain that can run on either traditional or ethanol-blended gasoline. The most common form of ethanol-based gas is E85, which contains up to 85% ethanol and 15% gasoline.
E85 is considered more environmentally friendly than traditional gasoline. Ethanol crops capture CO2 as they grow, and provide improved combustion, which releases fewer pollutants. It is also a renewable resource, produced locally in the United States.
Many manufacturers have offered flex-fuel vehicles, including Ford, General Motors, Chrysler, Toyota, Volkswagen, Volvo, Hyundai, Kia, Mitsubishi, Peugeot, Renault, and Honda.
You can check your owner's manual, or look for a yellow fuel cap or ring, or a decal or badge on the body or under the fuel door.
You can use an app or website to find your nearest E85 gas station.
