What Happens If You Put E85 In Car By Mistake

Have you ever mistakenly filled your car with the wrong type of fuel? It can happen to anyone, and can be a costly mistake. If you have accidentally put E85 fuel in your car, you may be wondering what the consequences are and what steps you need to take to rectify the situation.

E85 fuel is a blend of ethanol and gasoline, with 85% ethanol and 15% gasoline. It is commonly used in flex-fuel vehicles, which are specifically designed to run on this type of fuel. If your car is not compatible with E85 fuel, it can cause serious damage to your engine and other components.

In this article, we will explore what happens when you put E85 fuel in a non-compatible car, and what you can do to prevent and rectify this mistake. So, let’s dive in and gain control over this situation.

Understanding E85 Fuel

Did you know that E85 fuel is actually a blend of 85% ethanol and 15% gasoline? Ethanol is a renewable fuel made from plant materials such as corn, switchgrass, and sugarcane. E85 fuel production is increasing in popularity as it reduces our dependence on fossil fuels and is environmentally friendly. It’s also cheaper than traditional gasoline, making it an attractive option for many drivers.

One of the major benefits of using E85 fuel is that it produces fewer emissions than traditional gasoline. This means it’s better for the environment and can help reduce air pollution. In addition, E85 fuel can also help reduce our dependence on foreign oil, as it can be produced domestically.

However, it’s important to note that not all vehicles are compatible with E85 fuel and using it in a non-flex fuel vehicle can cause serious damage to the engine. Therefore, it’s important to check your vehicle’s owner manual before using E85 fuel.

Effects of Using E85 Fuel in a Non-Compatible Car

Using E85 fuel in a non-compatible car can cause damage to the engine and other components. E85 fuel is a blend of 85% ethanol and 15% gasoline, whereas regular gasoline only has about 10% ethanol. The higher ethanol content in E85 fuel can cause the fuel system to corrode and damage the engine. This can result in reduced fuel efficiency and other performance issues.

When E85 fuel is used in a non-compatible car, the engine may not be able to handle the higher ethanol content. The fuel injectors and other engine components may become damaged due to the corrosive properties of ethanol. This can lead to reduced fuel efficiency, decreased engine power, and other issues.

It’s important to always check the owner’s manual or consult with a trusted mechanic before using any alternative fuel in a non-compatible car.

Steps to Take if You Accidentally Use E85 Fuel

If E85 fuel is mistakenly pumped into a non-compatible vehicle, the best course of action is to immediately stop using the fuel and drain the tank.

It’s important to identify the fuel type before pumping it into your car. Most fuel pumps have labeling that indicates the type of fuel they dispense. In case there’s no labeling or you’re unsure, it’s best to ask the attendant or check the owner’s manual for guidance.

Once you realize that you’ve used E85 fuel in your non-compatible car, don’t panic. Simply stop using the fuel and drain the tank. You should also check for any damage to the fuel system and engine before filling the tank again with the correct fuel.

It’s crucial to note that prolonged use of E85 fuel in a non-compatible car can lead to severe engine damage, which can be expensive to repair. Therefore, it’s important to be vigilant when identifying the type of fuel to pump into your car.

Prevention Tips

To avoid costly repairs and damage to your vehicle, always double-check the fuel type before pumping and use the correct fuel for your car. If you use the wrong type of fuel, like E85 in a non-flex fuel vehicle, it can cause significant fuel system damage and potential safety hazards.

E85 is a blend of ethanol and gasoline with a higher ethanol content than regular gasoline. This means it burns at a different rate and can cause engine damage if used in a vehicle that is not designed to handle it.

To prevent this from happening, always read the fuel type label at the pump before filling up and make sure it matches the type of fuel your vehicle requires.


So, what happens if you put E85 fuel in your car by mistake? It can cause serious damage to your engine.

E85 fuel is a blend of 85% ethanol and 15% gasoline, and it is only suitable for certain cars that are designed to run on it. Using E85 fuel in a non-compatible car can lead to engine misfires, reduced power, and even engine failure.

If you accidentally use E85 fuel in your car, the first thing you should do is stop driving and have your car towed to a mechanic. Do not attempt to start the engine or drive the car, as this will only worsen the damage.

Your mechanic will need to drain the fuel tank, flush the fuel lines, and replace any damaged parts in order to get your car running properly again.

To prevent accidentally using E85 fuel in your car, always double-check the fuel type before filling up at the gas station. Look for the E85 label on the pump, and make sure your car is compatible with this type of fuel before you use it.

If you are unsure, consult your owner’s manual or contact your car manufacturer for more information. By taking these steps, you can avoid costly engine damage and keep your car running smoothly for years to come.