Can I Put E85 in My Dodge Charger? ProFlex for RT, SRT, SRT8

Can I put E85 in my Dodge Charger? That’s the question I researched, diving deep into the world of alternative fuels. However, diving into the world of E85 and your Dodge Charger requires understanding how this fuel affects your car’s engine, fuel efficiency, and overall health. Discovering the impacts on … Read more

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Written by: Mohammad Sameer

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Can I put E85 in my Dodge Charger? That’s the question I researched, diving deep into the world of alternative fuels.

However, diving into the world of E85 and your Dodge Charger requires understanding how this fuel affects your car’s engine, fuel efficiency, and overall health.

Discovering the impacts on performance and efficiency, I found intriguing results. Let’s explore the possibilities together.

Table of Contents

can i put e85 in my dodge charger?

Yes, you can use E85 fuel in certain models of the Dodge Charger that are designated as flex-fuel vehicles (FFVs). E85 is a gasoline-ethanol blend containing up to 85% ethanol.

Many Dodge Charger models, especially recent ones with 5.7L or 6.4L HEMI engines, are designed to run on E85 or any gasoline-ethanol blend in addition to regular gasoline. However, you should refer to your owner’s manual or contact a dealer to verify if your specific Charger model is an approved FFV capable of using E85.

If your Charger is not a factory flex-fuel model, there are aftermarket kits and modifications available that can enable E85 capability, such as:

  • ProFlex Commander adaptive flex fuel system
  • eFlexPlus and eFlexPro DIY E85 conversion kits
  • Model-specific E85 kits like the 2019-2021 Charger RT Scat Pack 6.4L kit
  • eFlexFuel kit utilizing technology used in high-performance vehicles

Just be aware that non-FFV modifications require proper installation and tuning. But for approved flex-fuel Dodge Chargers, you can safely refuel with E85 whenever it’s available.

What Is E85 Ethanol Fuel?

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E85 is a blend of 85% ethanol and 15% gasoline, offering a high octane rating that boosts your Dodge Charger’s engine performance.

Ethanol, a form of biofuel made from corn or other plant materials, stands out for its renewable energy credentials.

The Environmental and Economic Benefits

Ethanol-blended fuels like E85 are celebrated for their environmental impact. By opting for E85, you’re reducing your carbon footprint and contributing to lower greenhouse gas emissions. Economically, E85 can be cheaper than regular gasoline, making it an attractive option for fuel savings.

Why E85 Matters for Your Dodge Charger

If you drive a Dodge Charger, using E85 could mean enjoying higher horsepower and torque due to the fuel’s high octane rating. But, it’s crucial to verify that your model is flex-fuel capable. This information is typically found in your car’s manual or by consulting with the manufacturer.

Understanding Dodge Chargers and E85 Compatibility

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The Basics of Dodge Charger Fuel Requirements

When it comes to fueling your Dodge Charger, understanding what goes into your fuel tank is crucial. Each Dodge Charger model has specific fuel requirements that ensure optimal performance and longevity.

Generally, these cars are designed to run on regular unleaded gasoline with a minimum octane rating of 87. However, certain high-performance models might need premium gasoline to unleash their full potential.

E85 and Your Dodge Charger: A Closer Look

Now, let’s talk about E85 – a blend of gasoline and ethanol, often comprising up to 85% ethanol. The question is, can your Dodge Charger handle this type of alternative fuel? The answer isn’t a simple yes or no. It heavily depends on whether your car is a flex-fuel vehicle (FFV).

FFVs are specially designed to run on E85, regular gasoline, or any blend of the two, thanks to modifications in their fuel system and engine tuning to accommodate the higher ethanol content without risking engine damage.

Manufacturer Recommendations and Ethanol Compatibility

Dive into your vehicle manual, and you’ll find the manufacturer’s recommendations on fuel types. If your Dodge Charger is labelled as a flex-fuel vehicle, congratulations – you’re in the clear to use E85.

However, if it’s not, pumping E85 into your Charger could lead to various issues, from engine knock to potential fuel system damage, due to the different combustion characteristics of ethanol compared to gasoline.

The Power of E85 in Your Engine

When you switch from traditional gasoline to E85 in your Dodge Charger, you’re tapping into a higher octane rating. This means E85 can enhance your Charger’s power output and engine performance. Think of it as giving your car a more potent mix to run on, which can lead to improved acceleration and a more responsive throttle.

Fuel Efficiency: The Trade-Off

It’s crucial to note that while E85 might boost your car’s pep, it does come with a decrease in fuel efficiency. E85 contains less energy per gallon than gasoline, leading to reduced miles per gallon (MPG). You’ll find yourself visiting the fueling station more often, but for many, the trade-off is worth it for the performance gains and environmental benefits.

Engine Wear and Durability: A Closer Look

Concerns about engine wear and durability with E85 are common, but let’s set the record straight. Modern Dodge Chargers, especially those designed as flex-fuel vehicles (FFVs), are well-equipped to handle E85’s ethanol content without risking engine damage.

The vehicle manufacturer ensures that fuel injectors, fuel lines, fuel filters, and the fuel pump are all compatible with ethanol. However, it’s wise to consult your vehicle manual and check your vehicle warranty for peace of mind.

Comparative Analysis: E85 vs. Gasoline

When we pit E85 against traditional gasoline, the narrative isn’t just about fuel economy. Yes, gasoline might take you further on a single tank, but E85’s higher octane rating provides a cleaner, more efficient combustion process.

This means you’re likely to experience a reduction in engine knock, potentially increasing the lifespan of your engine.

Moreover, the use of E85 in a Dodge Charger aligns with a commitment to reducing your carbon footprint and supporting renewable energy sources.

The environmental impact cannot be understated; switching to a biofuel like E85 significantly lowers greenhouse gas emissions, propelling us toward energy independence and sustainability.

Testimonials and Real-Life Experiences

“I’ve been fueling my Charger with E85 for over a year now, and the difference in horsepower and torque is noticeable,” shares a Dodge Charger enthusiast from an online forum. “Yes, my fuel consumption has gone up, but the performance boost and knowing I’m contributing to a healthier planet makes it worth it.”

Navigating the Challenges and Considerations

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Availability of E85 Fuel and Geographic Considerations

When you’re considering switching your Dodge Charger to E85, the first hurdle you’ll encounter is finding a fueling station. E85, despite its benefits, isn’t as widely available as standard gasoline. This scarcity is more pronounced in certain regions, especially where ethanol production isn’t prominent. Before you commit to E85, check the fuel station locator tools available online to ensure there’s a convenient supply near you. Remember, the convenience of fueling is crucial for your daily driving needs.

Potential Impacts on Vehicle Warranty and Insurance

One of the most pressing concerns I hear from Dodge Charger owners is whether using E85 will affect their vehicle warranty. It’s essential to consult your vehicle’s manual and talk to your dealer. Most modern Chargers are designed to handle E85, but using this fuel in a non-flex-fuel vehicle can lead to complications, potentially voiding your warranty. Insurance companies may also have policies regarding the use of alternative fuels, so give them a call to avoid any surprises.

Economic Considerations: Cost of E85 vs. Gasoline

At first glance, E85 often appears cheaper than regular gasoline, a fact that draws many to consider it. However, it’s crucial to factor in fuel efficiency. E85 has a lower energy content than gasoline, which means your Dodge Charger will go fewer miles per gallon. Let’s break it down:

  • Fuel Efficiency: E85 can reduce fuel economy by about 15-30% compared to gasoline. This variance depends on your driving habits and your Charger’s engine tuning.
  • Cost Analysis: Even if E85 is $0.50 cheaper per gallon, the reduced fuel efficiency might mean you’re not saving as much as you thought, or you could even be spending more in the long run.

However, the trade-off comes with higher octane ratings of E85, potentially boosting performance due to the advanced combustion properties of ethanol.

Technical Explanations and Real-Life Application

E85’s high octane rating can lead to increased horsepower and torque, as the engine can safely run more aggressive timing. However, this is only true if your Dodge Charger’s engine and fuel system are properly tuned for E85. Without the correct adjustments, you might not see a performance improvement, and you could risk engine damage.

Case Study: Real-World Experience

John, a Dodge Charger owner from Iowa, shares his experience: “Switching to E85 was a bit of a journey. Initially attracted by the lower price, I quickly realized the importance of having a flex-fuel compatible Charger. After consulting my dealer and ensuring my warranty remained intact, I noticed a slight dip in fuel economy but improved engine performance. It’s a trade-off, but for me, the benefits of supporting renewable energy and enjoying a bit more kick on the acceleration make it worthwhile.”

Navigating the Fueling Process

Using E85 is not just about pouring a different type of fuel into your tank. It’s about understanding the fueling process, from handling and storage to the actual refuelling. Always ensure your fuel system is flushed if switching from gasoline to prevent any fuel mixture issues that could lead to poor engine performance or damage.

Case Studies and Real-World Applications

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Real-Life Success with E85 in Dodge Chargers

I’ve had the opportunity to connect with several Dodge Charger owners who’ve made the switch to E85 fuel. Their stories are not just testimonials; they are powerful case studies that highlight the compatibility and performance enhancements E85 can bring to your car.

One Dodge Charger owner, Alex, shared how transitioning to E85 significantly increased his car’s horsepower and torque, thanks to E85’s higher octane rating compared to standard gasoline. This improvement in engine performance was noticeable from the get-go, giving Alex’s Charger a new lease on life with a more responsive throttle and aggressive acceleration.

Another case study involves Sam, who noticed her Charger’s fuel efficiency slightly dipped but was more than compensated by the cost savings on E85 fuel and the environmental benefits of using a cleaner, more sustainable fuel source. Sam pointed out the importance of regular checks on the fuel system to ensure fuel lines, fuel injectors, and fuel filters are in top condition, given E85’s corrosive nature compared to regular gasoline.

Expert Insights on E85 Use in Performance Vehicles

Automotive experts and engineers I’ve spoken with underscore the importance of ensuring your Dodge Charger is flex-fuel capable or has been properly modified for E85 use. They stress the significance of understanding your vehicle’s manual and manufacturer’s recommendations regarding fuel type to avoid engine damage or voiding your vehicle warranty.

Experts suggest that while E85 can enhance engine performance due to its high octane rating, it requires precise engine tuning and adjustments to the fuel mixture for optimal performance and to prevent issues like engine knock or a triggered check engine light.

The Future of Ethanol Fuels in the Automotive Industry

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Trends in Ethanol Fuel Development

The automotive industry is steadily moving towards more sustainable and renewable energy sources, with ethanol fuels like E85 at the forefront of this transition. The drive towards energy independence and reducing the carbon footprint of vehicles has made ethanol an attractive alternative fuel.

Technological advancements are enhancing ethanol’s performance and compatibility with a wider range of vehicles, not just those labelled as flex fuel. Developments in fuel injectors, fuel lines, and engine tuning techniques are making it easier and more efficient to run on E85, boosting fuel economy and engine performance.

Regulatory and Market Influences on Ethanol Use

Fuel regulations and specifications are evolving to accommodate and encourage the use of alternative fuels like E85. Fuel standards are being updated to ensure fuel quality and safety for consumers, while fuel availability is increasing, making it more convenient to refuel.

Fuel prices and the environmental impact of fuels are significant drivers in the market’s shift towards ethanol. As fuel prices fluctuate, the often lower cost of E85 becomes an attractive option for many drivers, coupled with the desire to reduce greenhouse gas emissions and support sustainable fuel sources.

Engaging with Your Car’s Fuel Future

Switching to E85 in your Dodge Charger isn’t just about following a trend; it’s about being part of a larger movement towards sustainability in the automotive industry. Whether you’re drawn to the performance benefits or the environmental advantages, using E85 is a step forward in reducing our carbon footprint and promoting energy independence.


Can I Use E85 Fuel In My Dodge Charger If It’s Not Specifically Designed For It?

It depends on your vehicle model. Some older models may not be compatible with E85 due to differences in materials used in their construction. It’s best to consult with a qualified mechanic or refer to your owner’s manual to determine if your specific Dodge Charger can safely run on E85 fuel.

Will Using E85 Void My Vehicle Warranty?

Using E85 fuel alone should not automatically void your vehicle warranty. However, modifying your vehicle or making unauthorized adjustments to accommodate higher ethanol blends might affect certain aspects of your warranty coverage. It’s advisable to review your warranty terms or consult with a dealership representative for clarity before making any modifications.

Can I Mix Regular Gasoline With E85?

Yes, you can mix regular gasoline (E10) with E85 to create a blend that falls somewhere in between. This can be useful if E85 is not readily available or if you want to gradually transition to higher ethanol blends. However, it’s important to note that the performance and efficiency benefits of using pure E85 may not be fully realized with a blended fuel.

Will Using E85 Improve My Dodge Charger’s Horsepower?

Using E85 fuel can potentially increase the horsepower of your Dodge Charger, especially in high-performance models like the Hellcat. Ethanol has a higher octane rating than regular gasoline, allowing for more aggressive timing and increased power output. However, it’s important to consider other factors such as engine modifications and tuning to fully optimize performance gains.

Is E85 Fuel More Affordable Than Regular Gasoline?

E85 fuel is often priced lower per gallon compared to regular gasoline. However, since ethanol contains less energy per unit volume than gasoline, you may experience reduced fuel efficiency when running on E85. Therefore, the overall cost savings will depend on factors such as local fuel prices and your vehicle’s specific mileage on different fuels.

References & further reading

Discovering E85 and Your Dodge Charger

E85 Compatibility with Your Car Model

Before we dive in, let’s get something straight: not all Dodge Chargers are ready to sip on E85. Your car’s vehicle manual is your best friend here. It tells you if your car model is a flex-fuel vehicle (FFV) or if it’s strictly a gasoline lover.

Understanding Ethanol’s Role

Ethanol isn’t just any fuel. It’s a high octane rating champion, meaning it can make your Dodge Charger perform like it’s got a cheetah under the hood. But, there’s a catch. Ethanol is also a bit of a clean freak, potentially causing engine damage if your fuel system isn’t prepared for it. Websites like the U.S. Department of Energy’s Alternative Fuels Data Center ( can provide a wealth of information on ethanol content, fuel economy, and fuel type compatibility.

Engine Performance & Emissions: The Deep Dive

The Heart of Your Dodge Charger: The Engine

Ethanol’s higher octane rating translates to fewer engine knocks and potentially more horsepower and torque. However, introducing E85 to a non-FFV can lead to a symphony of check engine lights.

The American Automobile Association (AAA) ( often releases studies and reports on how different fuel types affect engine performance, including those on ethanol-blended fuels.

Breathing Easy: Emissions and Environmental Impact

Using E85 means your car’s emissions will have a makeover. Greenhouse gas emissions take a nosedive, making your Dodge Charger a bit more green. The Environmental Protection Agency (EPA) ( has comprehensive data on fuel emissions and environmental impact, ensuring you’re well-informed on how your fuel choice affects the planet.

Practical Advice: Living with E85

Fueling Up: Not a Regular Gas Station Run

Finding an E85 fueling station might have you playing a bit of hide and seek, depending on where you live. The Energy Independence and Security Act has pushed for greater fuel availability, but it’s still a journey. Tools like the E85 Finder app and websites ( can make this quest a bit easier, listing fueling stations and fuel prices near you.

Keeping Your Charger Happy: Maintenance and Upgrades

If your Dodge Charger is an FFV, or you’re considering making the switch, maintenance is key. Fuel injectors, fuel lines, fuel filters, and the fuel pump might need more attention or an upgrade to handle the ethanol content. Resources like Car and Driver ( and MotorTrend ( offer guides and articles on fuel system maintenance and upgrades.

The Bigger Picture: Ethanol and Sustainability

Driving Towards a Greener Future

Embracing E85 is more than just about powering your Dodge Charger; it’s about driving towards sustainability and reducing our carbon footprint. Organizations like the Renewable Fuels Association ( and the National Renewable Energy Laboratory (NREL) ( offer insights into renewable energy, biofuel, and their role in achieving energy independence.

In our journey to understand the compatibility of E85 with the Dodge Charger, remember, it’s not just about filling up the fuel tank. It’s about understanding the fuel blend, its impact on your car model, and how it aligns with your lifestyle and values.

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About Mohammad Sameer

My name is Mohammad Sameer and I have over 3 years of hands-on experience repairing cars, motorcycles, and trucks. Ever since I operated on my first engine in 2018, I’ve been passionate about all things automotive. In 2021, I launched my blog “Motoring Mastery” to share my knowledge with car enthusiasts and DIY mechanics.