Easy to replace on your own
Your Nissan's Fuel Tank Cap is a car part that isn't commonly talked about. You remove the Fuel Tank Cap, fill your vehicle's fuel tank, and then secure it back on with every trip to the pump, but that's probably the only time you think to acknowledge your fuel cap.
Your Fuel Tank Cap serves a big part in the efficiency of your Nissan's fuel system. You already know that it seals off your fuel tank and stops dirt, water, and other harmful debris from contaminating your gasoline. But did you know? The Fuel Tank Cap is also a component of your Nissan's evaporative emissions system (or EVAP).
As your engine runs, your fuel temperature rises, and it releases toxic vapors. However, with a securely-fitted Fuel Tank Cap, the EVAP system can safely contain and recirculate those emissions to stop them from being released into the air around your vehicle.
If your Nissan Fuel Tank Cap no longer clicks into place, or if it frequently loosens after you've already tightened it, you probably have an old or damaged cap. Since this component is also part of your EVAP system, your dashboard engine light may come on if your cap is malfunctioning. Other indicators of a damaged or worn Fuel Tank Cap include gasoline odors while the engine is running and diminished fuel mileage (with no change in your driving habits).
There are a couple of consequences of a Fuel Tank Cap that's no longer functioning correctly. A Fuel Tank Cap that doesn't fully seal may push damaging byproducts into the environment, but it can also cause other significant problems within your Nissan's engine. A failing Fuel Tank Cap can reduce your Nissan's engine performance lessen your fuel efficiency, and cause fuel leakage. It's wise to replace your Fuel Tank Cap as soon as you realize that it is no longer functioning correctly.
Replacing an old Fuel Tank Cap is simple, and you can do it yourself. Just be sure to shop genuine Nissan parts online to enjoy a seamless fit for your vehicle.
This Fuel Tank Cap (reference number 172519DC1C) will fit your Nissan Altima 2007-2013 or Nissan Maxima 2011-2021. Check out the What This Fits tab for additional information.
CAP ASSY-FILLER
Fits Maxima