Mercedes Mullins
Flex fuel kits are an increasingly popular way to convert a car to run on E85, a combination of gasoline and ethanol. The kits are designed to be easy to install, with some users reporting that they only needed to open the fuel lines and feed the new lines into the flex fuel sensor. The cost of a flex fuel kit varies depending on the vehicle, with eFlexFuel offering vehicle-specific kits starting at $699. Some users have reported that the kits have improved their car's performance and reduced their fuel costs, while others have noted potential drawbacks such as lower gas mileage and increased corrosion.
| Characteristics | Values |
|---|---|
| Cost of E85 flex fuel conversion kit | Starting at $699 |
| Cost of E85 fuel | $3.80 per gallon |
| Cost of regular gas | $7 per gallon |
| Ethanol content of E85 | Up to 85% |
| Ethanol cost | Less than regular gasoline |
| Ethanol energy levels | 1.5 times more required to reach same energy levels as gasoline |
| Ethanol environmental impact | Fewer toxic fumes and greenhouse gases |
| Ethanol corrosiveness | More corrosive to fuel lines |
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What You'll Learn
The cost-effectiveness of flex fuel kits
One of the main advantages of flex fuel kits is their potential for cost savings. Ethanol, a common flex fuel, typically costs less than regular gasoline, offsetting the lower gas mileage associated with flex fuels. For example, a user in California reported a significant decrease in fuel costs after installing a flex fuel kit, with prices dropping from almost $7 a gallon to $3.80 for E85. Additionally, flex fuel kits can improve a vehicle's performance, resulting in higher horsepower ratings without requiring expensive race gas.
However, it is important to consider potential drawbacks. Flex fuels, such as E85, have been associated with reduced fuel economy due to their lower power density compared to gasoline. This means that while ethanol is cheaper, more of it may be required to achieve the same energy levels, potentially negating the cost savings. Additionally, ethanol has been known to be more corrosive to fuel lines, particularly in older vehicles, which could lead to costly repairs.
When considering the cost-effectiveness of flex fuel kits, it is essential to research the compatibility of your vehicle. Some cars may not be designed to run on flex fuels, and installing a kit could potentially void the warranty. It is also worth noting that the availability of ethanol at gas stations may be limited due to its lower demand compared to gasoline.
Overall, while flex fuel kits can offer cost savings and performance benefits, there are also potential drawbacks and compatibility issues to consider. It is essential to weigh these factors before making a decision to ensure a cost-effective choice.
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E85 flex fuel conversion kits
E85 is a renewable fuel made from plant biomass, such as corn, and can reduce harmful emissions by up to 35-80% compared to gasoline. It has a higher ethanol content than regular gasoline, which can improve engine performance and increase horsepower ratings. However, it may also result in a slight loss of power density, leading to a small decrease in fuel economy.
One user reported that the eFlexFuel kit improved their vehicle's performance, with smoother running and increased power. They also praised the company's customer service and recommended the product to others.
Another option for E85 conversion is the ZZP LTG E85 Flex Fuel Conversion Kit from ZZPerformance. This kit constantly monitors the fuel's ethanol percentage and reports it to the ECM. It allows for any mix of E85 and premium gasoline, with the PCM adjusting fueling, timing, and boost accordingly. However, it requires some supporting modifications, such as a larger fuel pump lobe and an in-tank pump.
Overall, E85 flex fuel conversion kits offer a cost-effective approach to improving vehicle performance and reducing environmental impact. With easy installation and potential savings on fuel costs, these kits provide a viable option for those seeking to enhance their vehicles' capabilities and contribute to a greener future.
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Flex fuel kits for specific car models
The cost of a flex fuel kit varies depending on the specific car model and the type of kit purchased. For example, eFlexFuel offers vehicle-specific kits starting at $699, which include everything needed for a DIY installation. These kits are designed to work with various makes, years, models, and engines, and they do not require modifications to the factory ECU, OBD, or trigger a check engine light.
Another example is the P tuning flex fuel kit, which is available for purchase on Reddit and costs around $2000 when combined with the ECUTek dongle and license. This kit is designed to work with the FT86 platform, which includes the Subaru BRZ and similar models.
It is important to note that flex fuel kits are not compatible with all car models, and older cars with carbureted engines may require additional adjustments for compatibility. Additionally, flex fuel kits may impact fuel mileage, as ethanol has lower energy content than gasoline, resulting in lower miles per gallon. However, the lower cost of ethanol compared to gasoline can offset the mileage loss.
When considering a flex fuel kit, it is essential to research the compatibility and potential mileage impact for your specific car model to make an informed decision.
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The environmental impact of flex fuel kits
Ethanol burns cleaner than gasoline, resulting in fewer toxic fumes and a reduction in greenhouse gas emissions of up to 50%. This leads to cleaner air and improved air quality. Additionally, ethanol production involves the fermentation of grains, which absorb carbon dioxide from the atmosphere, further reducing lifecycle emissions compared to fossil fuels. The use of flex fuel kits can, therefore, contribute to a significant reduction in a vehicle's carbon footprint.
Another benefit of flex fuel kits is their ability to improve fuel efficiency. While flex fuel may not be as power-dense as gasoline, resulting in a potential dip in fuel economy, it provides more torque and horsepower. This increased performance can offset the higher fuel consumption, resulting in a more efficient vehicle overall. Furthermore, flex fuel is more cost-effective than traditional gasoline, leading to potential savings at the pump.
The environmental advantages of flex fuel kits extend beyond emissions and fuel efficiency. Ethanol production yields useful by-products such as distillers' grains, which can be used as high-protein cattle feed. Additionally, flex-fuel vehicles come with electronic sensors that detect the fuel blend and make necessary adjustments, ensuring optimal performance regardless of the fuel mixture. This adaptability contributes to the overall efficiency and environmental friendliness of flex-fuel technology.
While flex fuel offers numerous environmental benefits, it is important to consider potential drawbacks. The production of flex fuel relies on crops like corn, which can be susceptible to disease and weather conditions, and the availability of crops for other purposes, such as animal feed. Therefore, while flex fuel kits can significantly reduce environmental impact, careful consideration of the fuel's source and sustainability is essential.
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Installation of flex fuel kits
The cost of a flex fuel kit varies depending on the provider and the specific requirements of your vehicle. eFlexFuel offers vehicle-specific kits starting at $699, which include everything needed for a DIY installation.
Now, onto the installation process. Installing a flex fuel kit involves equipping your vehicle with technology to support functionality and efficiency when running on different fuel types. The process typically begins with confirming the compatibility of your vehicle's engine with the kit. Once compatibility is established, the engine bay is cleared of any obstructions to access the engine components. It is crucial to prioritise safety by reviewing the user manual and disconnecting the battery to prevent accidental electrical shorts.
The installation process itself involves carefully cutting the fuel line and inserting the flex fuel sensor between the cut ends. The provided clamps are then used to secure the sensor, ensuring it is installed in the correct flow direction as indicated by arrows on the sensor. The sensor reads the ethanol content of the fuel and adjusts the ECU's tuning to compensate for the ethanol level.
Some kits may also include fuel lines to redirect fuel into the sensor and a Bluetooth module to feed ethanol readings to a companion phone app. While most kits provide clear instructions for DIY installation, some vehicle owners may prefer to seek professional assistance or utilise the support services offered by the kit providers.
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Frequently asked questions
The cost of a flex fuel kit depends on the type of kit and the vehicle. Vehicle-specific kits from eFlexFuel start at $699.
A flex fuel kit is a sensor system attached to a car's fuel system. The sensor reads the ethanol content of the car's fuel and adjusts the ECU's tuning to compensate for more or less ethanol.
Flex fuel kits allow your vehicle to run on E85, gasoline, or a blend of the two. E85 is a renewable fuel produced from plant biomass like corn, which is cheaper and more environmentally friendly than gasoline.
Some people claim that flex-fuel vehicles have lower gas mileage than regular fuel-powered vehicles. E85 contains less energy than gasoline, so it will take 1.5 times more to provide the same energy levels.
E85 has been claimed to be corrosive and volatile, but this is a myth. The alcohol content can dry out suboptimal materials in older cars, but it will not eat away at your fuel system or cause it to blow up.
