Can You Run E85 in a 2019 Mustang GT?

E85 is a blend of 85% ethanol and 15% gasoline. It’s a higher-octane fuel that can provide better performance, particularly for turbocharged or supercharged engines. However, it also has its limitations.

The Ford Mustang is an iconic American muscle car that has been thrilling enthusiasts for decades. With the release of the 2015 Mustang, Ford introduced an all-new design and engine options that have continued to evolve over the years. One popular modification among Mustang enthusiasts is the use of E85 ethanol fuel. But can you run E85 in a 2019 Mustang GT? In this article, we’ll explore the answer to this question from multiple viewpoints.

Answer to Question

Before diving into the pros and cons, let’s first clarify what E85 is. E85 is a blend of 85% ethanol and 15% gasoline. It’s a higher-octane fuel that can provide better performance, particularly for turbocharged or supercharged engines. However, it also has its limitations.

The short answer is: yes, you can run E85 in a 2019 Mustang GT, but with some caveats. The engine control module (ECM) on the 2019 Mustang GT is programmed to run on standard unleaded gasoline, and modifying it to run E85 would require additional programming or reflashing.

Pros:

• Performance boost: Running E85 can provide a noticeable performance increase due to its higher octane rating.
• Environmental benefits: Using E85 can reduce greenhouse gas emissions by up to 34% compared to traditional gasoline.
• Flexibility: With the ability to run E85, you’ll have more options for fueling your car when traveling through areas with limited access to standard gasoline.

Cons:

• Limited availability: E85 is not widely available in many parts of the country, making it inconvenient to use.
• Engine modification required: To run E85 safely and efficiently, you may need to modify or reflash the ECM, which can be costly and requires professional expertise.
• Potential for engine damage: Running E85 without proper modifications or testing could result in engine damage due to its higher ethanol content.

Conclusion

In conclusion, while it is technically possible to run E85 in a 2019 Mustang GT, there are pros and cons to consider. If you’re looking to take your car’s performance to the next level and have access to E85, running this fuel can be an exciting option. However, if you don’t have access to E85 or aren’t comfortable with modifying your engine control module, it may not be the best choice for you.

Additional Considerations

Before making a decision, consider the following:

• Check local availability: Ensure that E85 is available in your area before making modifications.
• Consult a professional: If you’re unsure about how to modify or reflash your ECM, consult with a professional mechanic or tuner who has experience working with E85.
• Research and testing: Conduct thorough research and testing to ensure that any modifications are safe and effective for your specific vehicle.

By understanding the potential benefits and drawbacks of running E85 in your 2019 Mustang GT, you can make an informed decision about whether this fuel is right for you.