Q: Put the wrong type of gas into my car

asked by on

I bought my car a few days ago, and I put regular 87-ethanol gas in it. But, I am supposed to use premium gas. Can I mix premium gas in until the regular is gone? How do I do that?

Modern cars such as yours are able to use the 87 octane gas even though they are meant for 91 octane. The ECU is able to detect that the vehicle is running on 87 octane gas and reduces engine timing. When the car runs 87 instead of 91 it will reduce engine power and fuel efficiency. Your car will drive fine with this mixture. You can just refill it with the correct fuel when you are running close to empty.

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. Put the wrong type of gas into my car

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: my car runs weak

Hello there, many different parts can cause the vehicle to run weakly. It would most likely be a misfire condition, spark plug wire, fuel pump, low fuel pressure, or an oxygen sensor. A qualified technician, such as one from YourMechanic,...

Q: 210 gas mileage on a Nissan Maxima with a full tank of gas

Yes, change the fuel filter anyway. It's so old so you might as well. But that gas mileage is pretty much normal for Maximas. Those have V6 engines that are very powerful. Most people drive them reasonably fast. The faster...

Q: Clutch release bearing gone

The bearing will have to be replaced. I recommend having a reputable transmission handle this repair. I also suggest having the clutch and pressure plate replaced while they are in there. 

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.