How To Convert Your Car To E85

If you’re looking for a way to reduce your carbon footprint and save some money at the gas pump, converting your car to run on E85 might be the perfect solution for you.

E85 is a blend of 85% ethanol and 15% gasoline, and it’s a renewable fuel source that can be produced domestically. By using E85 instead of traditional gasoline, you can reduce your greenhouse gas emissions and support the American ethanol industry.

But before you jump into converting your car, it’s important to understand the benefits of E85 and whether your car is compatible with it. Converting your car to E85 requires some modifications, and not all cars are capable of running on this fuel.

In this article, we’ll walk you through the steps of converting your car to run on E85, from understanding the benefits of this renewable fuel to making the necessary modifications to your vehicle. So buckle up and get ready to take control of your fuel choices.

Understand the Benefits of E85

You’ll wanna hear about the perks of E85 – it’s a high-octane fuel that’s cheaper than regular gasoline and promotes cleaner emissions.

This ethanol-based fuel can have a significant economic impact on your wallet. E85 is often priced lower than gasoline, so you can save money at the pump. Plus, since E85 is produced domestically, it helps reduce our dependence on foreign oil, which can ultimately have a positive impact on the economy.

Aside from the economic impact, E85 also offers environmental benefits. This fuel is made from renewable resources, such as corn or sugarcane, and is considered a greener alternative to traditional gasoline. It burns cleaner, which means fewer harmful emissions are released into the atmosphere.

By using E85, you can reduce your carbon footprint and help contribute to a healthier planet.

Check Your Car’s Compatibility

If your vehicle isn’t designed for alternative fuels, it may damage the engine and fuel system. Before converting to E85, it’s crucial to check compatibility. You can use a testing kit or consult with a professional mechanic to determine if your car can handle E85.

If your car is compatible with E85, you may need to make some engine modifications to ensure optimal performance and efficiency. These modifications can include upgrading fuel injectors, fuel pump, and fuel lines. Additionally, you may need to adjust the timing and tuning of your car’s engine to run on E85. It’s essential to ensure that all modifications are done by a professional to avoid any potential safety hazards or damage to your vehicle.

Make Necessary Modifications

To make your car compatible with E85, you need to make necessary modifications to your fuel system. This includes replacing your fuel lines with materials that can withstand the corrosive nature of ethanol.

Additionally, you’ll need to install larger fuel injectors to ensure that your engine gets enough fuel to burn E85 efficiently. Lastly, adjusting your engine timing is crucial to achieve optimal performance with E85.

Replace Fuel Lines

Replacing fuel lines is a key step in converting your car to run on e85, and it’s important to use ethanol-resistant lines to ensure the best performance. Ethanol can corrode and deteriorate traditional rubber fuel lines, causing leaks and potentially damaging your engine.

Therefore, it’s necessary to replace your old lines with new ones that are designed to handle ethanol. When selecting fuel line materials, there are a few options to consider.

Stainless steel braided lines are a popular choice because they’re durable and resistant to corrosion, but they can be expensive. Nylon braided lines are a more affordable option, but they may not be as durable as stainless steel. Ultimately, it’s up to you to determine which material is the best fit for your budget and performance needs.

Regardless of the material you choose, make sure the lines are rated for use with ethanol and are properly installed to ensure a secure and leak-free connection.

Install Larger Fuel Injectors

Now that you’ve got your ethanol-resistant fuel lines in place, you’ll need to install larger fuel injectors to accommodate the higher flow rate of e85 fuel. This is because e85 has a higher oxygen content than regular gasoline, which means it requires more fuel to maintain the proper air-fuel ratio.

When selecting fuel injectors, you need to consider a couple of factors such as flow rate and impedance. The flow rate of the injectors should be sufficient to meet the engine’s fuel demand, and the impedance should be compatible with your car’s electrical system.

Before installing the new injectors, it’s important to take some precautions. Firstly, make sure the engine is completely cool before working on it. Secondly, disconnect the battery to avoid any electrical mishaps. Lastly, remove any residual fuel pressure from the fuel system by depressurizing the fuel lines.

Once you’ve taken these precautions, you can now proceed with the installation. Install the new injectors in the same manner as the old ones, making sure to tighten the bolts to the manufacturer’s specifications.

After the installation, reconnect the battery and start the engine to ensure everything is working correctly.

Adjust Engine Timing

Don’t miss out on the opportunity to improve your engine’s performance by adjusting the timing! Engine performance is directly affected by ignition timing. Adjusting the timing can increase power output, improve fuel efficiency, and even extend the life of your engine. However, it’s important to note that adjusting the timing can also cause damage if it’s not done correctly.

To adjust the timing, you’ll need a timing light and a basic understanding of how your engine works. The timing light is used to measure the ignition timing while the engine is running. To adjust the timing, you’ll need to loosen the distributor lock bolt and rotate the distributor until the timing is at the desired setting.

It’s important to follow the manufacturer’s recommended timing specifications and make adjustments in small increments to avoid causing damage to the engine. By adjusting the timing, you’ll be able to optimize your engine’s performance and get the most out of your conversion to E85 fuel.

Start Using E85

To fully embrace the benefits of e85, you’ll want to fill up your tank with this renewable fuel source and feel the power of ethanol surging through your engine. However, before you start using e85, it’s important to weigh the pros and cons of this fuel source.

One of the biggest pros is the environmental benefit – e85 produces less greenhouse gas emissions than traditional gasoline. Additionally, e85 is made from renewable resources, such as corn or sugarcane, which means it’s a sustainable and domestically-produced fuel source.

On the other hand, availability and cost can be drawbacks to using e85. Not all gas stations carry e85, which can make it difficult to find if you’re traveling in a new area. Additionally, e85 can be more expensive than traditional gasoline, which means you may end up spending more money on fuel if you’re not careful.

However, many people find that the benefits of e85 outweigh the potential drawbacks, and they feel that they’re making a positive impact on the environment by using this renewable fuel source.

Maintenance and Upkeep

To ensure your car runs smoothly on E85, there are a few maintenance and upkeep tasks you should prioritize.

First and foremost, make sure you get regular oil changes to keep your engine running smoothly and prevent buildup of harmful deposits.

It’s also important to monitor your fuel efficiency regularly to ensure you’re getting the most out of your E85 conversion, and address any issues promptly to prevent more serious problems down the road.

By staying on top of these key points, you can ensure your car stays in top shape and runs efficiently on E85.

Regular Oil Changes

Ensuring your car gets regular oil changes is crucial when converting it to e85. The importance of frequency can’t be stressed enough, as e85 burns hotter than gasoline, causing oil to break down faster.

To maintain the health of your engine and prevent costly repairs down the line, change your oil every 3,000 miles or three months, whichever comes first.

When choosing the right oil, it’s important to look for one designed for high-performance engines. Synthetic oils are a great choice, as they offer better protection against heat and wear than conventional oils.

Make sure to use an oil with a viscosity rating that matches your car’s specifications. Using the wrong viscosity can cause engine damage and affect performance.

By regularly changing your oil with the right type, you’ll ensure your engine stays healthy and efficient, allowing you to enjoy the benefits of e85 without any issues.

Monitoring Fuel Efficiency

You’ll want to keep track of how efficiently your vehicle is running on e85 to ensure you’re getting the most out of your fuel and saving money in the long run. Real-time tracking of your fuel consumption can help you identify any issues and make necessary adjustments to maximize your fuel efficiency.

There are a variety of apps and devices that can monitor your fuel usage, including some that can provide fuel consumption analysis. By monitoring your fuel efficiency, you can also identify trends in your driving habits that may be affecting your vehicle’s performance.

For example, aggressive driving and excessive idling can reduce fuel efficiency while consistent speeds and gentle acceleration can improve it. Keeping track of your fuel consumption can help you adjust your driving habits to optimize your fuel economy and save money on fuel costs.

Addressing Any Issues Promptly

Now that you’ve been monitoring your fuel efficiency, it’s important to address any issues promptly. Prompt issue resolution is key to keeping your car running smoothly on e85. If you notice any problems, don’t wait until they become major issues.

Preventive maintenance is also important when converting your car to e85. Regularly checking and replacing components like spark plugs and fuel filters can help prevent problems from occurring in the first place.

It’s also a good idea to have your car inspected by a professional mechanic at regular intervals to catch any potential issues early on. By being proactive with maintenance, you can ensure that your car runs smoothly and efficiently on e85.


Congratulations! You’ve successfully converted your car to E85 and are now enjoying the numerous benefits of this environmentally-friendly fuel. By understanding the benefits of E85, checking your car’s compatibility, making necessary modifications, and starting to use E85, you’ve taken a step towards reducing your carbon footprint and contributing to a sustainable future.

However, it’s important to note that maintenance and upkeep are crucial for the long-term performance of your E85 converted car. Make sure to regularly check your fuel system for any leaks or damage, and replace any worn-out parts as soon as possible.

Additionally, it’s recommended to use high-quality E85 fuel to ensure optimal performance and avoid any potential issues. By following these simple steps, you can enjoy all the advantages of E85 while keeping your car in top condition.

Happy driving!