Skip the auto shop - Our mechanics make house calls

How Long Does a Gas Cap Last?

gas cap

The fuel that resides in your gas tank is used to power your vehicle and to supply the material needed for the combustion process. Making sure that the gas in the tank stays at the right consistency is important in the running of the vehicle. The job of the gas cap is to make sure that no trash or water gets into the fuel supply through the filler neck. The gas cap screws into the top of the filler neck and has a seal that helps to keep the trash out. The gas cap is used all of the time, which means that you will have to get the cap replaced eventually.

The gas cap can last up to 50,000 miles and in some cases longer if it is properly cared for. Not having this type of protection in regards to the gas supply in a car can lead to a variety of different issues. If the gas cap lets trash and dirt in the gas supply, then it will usually result in the fuel filter being clogged. A bad fuel filter will lead to a restriction in the flow of gas, which means that it will be very hard for the car to run normally.

The best way to detect damage with a gas cap is by taking the time to inspect it on a regular basis. Usually, you will be able to tell if the gas cap is damaged and getting it fixed in a hurry can reduce the damage it may do. There are a number of different types of gas caps out there and selecting the right replacement will take some time and effort on your part.

When a gas cap is in need of replacement, here are some of the things that you may notice:

  • The Check Engine Light is on
  • The seal on the gas cap is visibly damaged
  • The threads on the gas cap are worn or stripped out
  • The gas cap has been lost

Putting a new gas cap on a car will help to reduce the amount of trash that is allowed to get into your fuel supply. Getting a professional to offer advice regarding what type of gas cap to get can reduce the chance for error.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...


Related questions

Q: How do you remove the gas cap?

Without removing the gas cap, you won’t be able to fill your tank. Nissan makes it easy to remove and replace your cap, and even provides a handy holder for the cap during the filling process. Here’s what you need...

Q: Check engine light

Hi there, thanks for your question. I'd be happy to help. A [misfire can be caused by a variety of things other than bad spark plugs such as bad plug wires, vacuum leak, dirty fuel injectors, a weak fuel pump...

Q: The check engine light on for my 2005 Chevrolet Avalanche

Hey there, thanks for writing in about your 2005 Chevrolet Avalanche. If the gas cap was loose but then later taken care of, then the light may be due to another issue. You will need to have the Check Engine...