Skip the auto shop - Our mechanics make house calls

Q: I think I accidentally put diesel fuel in my 2015 Nissan Altima.

asked by on

I was in a hurry to work and had to stop for gas. I stopped at a BP and noticed there was only one gas option, so I chose it anyways. I filled up aboh $8 before the gas wouldn't come out anymore, and the tank wasn't full. On the way to work the car was sputtering and acting a little funny. When I went leave work my car wouldn't start. It had a battery symbol and another hazard symbol on the dash. I know my battery wasn't dead because the radio, air, and lights were coming on. I was wondering if it is even possible to put diesel in a Nissan, as I've been told before that the diesel nozzle is too big and won't fit. Also, if I did put diesel what do I do and will it mess up my car? Thank you.

My car has 11000 miles.
My car's transmission is unknown to me.

Hi there. Yes, it is possible to put diesel into any vehicle as not all nozzles are differentiated. If this has happened, it’s not all bad, but not all good. The bad news is that all the fuel will need to be removed from the fuel tank, lines emptied, injectors cleaned, spark plugs replaced, and an oil change service. These are all of the steps I have performed when this has happened to my customers in the past to ensure no future problems. The diesel fuel is a lot like oil and will coat every surface it touches. The good news is that diesel shouldn’t damage any major components; at least I have yet to see this in my 21 years. YourMechanic has several available technicians to assist you with a no start inspection and provide a through estimate and direction of repair.

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!

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: TMPS/PS Light

Hello, and thank you for writing in. The power steering system, TPMS system, and the stability control are all connected. The problems do likely coincide. To start, consider any changes the TPMS system could have gone through (change of tires,...

Q: Gas leak

Hey there. As you may know a fuel leak can be extremely dangerous depending on the location and what is causing it. I would recommend not driving your car at all until you are able to have it looked at....

Q: Is it mandatory to get the cvt fluid changed at 30,000 miles or 60,000 miles. I've had 2 different nissan mechanics tell me both.

I would recommend following your owners manual for the service interval. The fluid should be changed with Nissan CVT fluid only and you should have the filter and cooler flushed. If you need some assistance with this, contact a professional...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.