Q: I filled my car with E85 and now there are multiple misfires.

asked by on

My gas tank was empty and I filled it with e85. Now it misfires, especially in high gear and under high load. I have gotten automatic range sensor, bank 1 o2 sensor low voltage, multiple engine misfire codes. I finally realized what I did after going through a full tank. I refilled with fresh 85 but the problem continues. I was going to start with replacing the o2 sensor but am fearful of chasing parts. Automatic Trans fluid looks good and no is full. Do you have any suggestions?

My car has 209643 miles.
My car has an automatic transmission.

Hi there. Sometimes E-85 can have several side effects, like the ones you’ve listed. However, before you start chasing parts, I would highly recommend having a professional mobile mechanic come to your location to complete an engine is misfiring inspection. This will allow them to pinpoint what’s causing this issue and recommend the right repairs if any.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I filled my car with E85 and now there are multiple misfires.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I import a phonebook from my cell phone?

When you pair a cell phone with HandsFreeLink, your phonebook and call history information will be automatically imported into the system.

Q: Adding park assist - 2014 Mercedes Benz CLA250

The car may or may not have the basic infrastructure to support this feature. Most established auto manufacturers do not support "field modifications" such as this for warranty and reputation reasons. Look for an automotive customizer in your area that...

Q: Valve adjustment on a 2010 Honda Odyssey

Yes it is bad if you don't do it. You'd want to have it checked at least. If they are not more than 4,000 of an inch off, you can leave them alone and drive it. But on Hondas, they...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.