Skip the auto shop - Our mechanics make house calls

Q: What Is E85?

asked by on

What is E85?

E85 is a type of fuel that contains 51-83% ethanol. Ethanol is distilled from plants like corn and made into an alcohol-based fuel, combined with gas. It is known as a flex fuel or alternative fuel and is reserved for use in vehicles designed for it. These vehicles have forced induction engines with higher compression capabilities than other vehicles; E85 flex fuel can be used in these vehicles as well as regular gas. E85 flex fuel reduces the amount of harmful emissions, like CO2, that are expelled into the environment from the exhaust. The increased use of ethanol in fuel is more sustainable and costs less at the pump then regular fuel. However, the use of E85 flex fuel decreases gas mileage and may require more frequent refills of gas. It is commonly debated whether E85 is less expensive than regular fuel but widely seen as a fuel that is better for the environment.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. What Is E85?

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: Put gas in car instead of diesel

Hello. It is important that you do not drive this vehicle anymore until you can get it repaired. Your fuel system will need to be flushed, the fuel pump will need to be replaced, and it is possible that the...

Q: Fuel gauge fluctuation

A fluctuating fuel gauge on your Oldsmobile is an indication that the fuel level sensor is failing. When this happens, you will notice that the fuel gauge is moving as you turn corners and the gas sloshes around inside your...

Q: Fuel vapor leak

A mechanic would need to do a through inspection to see why the injectors were damaged, and check all vent hoses for leaks. Sometimes, a smoke machine can be used to find what is leaking. I recommend having a mechanic,...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.