- Seals off your fuel tank and prevents contaminants in your gas supply
- Plays an important role in the EVAP system
- Easy to replace on your own
Your INFINITI Fuel Tank Cap is one component that isn't commonly talked about. You take off the Fuel Tank Cap, fill your vehicle's fuel tank, and then tighten it back into place with every trip to the pump, but that's probably the only time you think to acknowledge your fuel cap.
Your Fuel Tank Cap has a vital role in the overall function of your INFINITI. You already know that it provides a seal for your fuel tank and stops moisture, debris, and dirt from contaminating your gasoline. But here's another thing: the Fuel Tank Cap is an integral part of your INFINITI's evaporative emissions system (or EVAP).
As your engine runs, the fuel in your vehicle heats up and generates harmful fumes. But, with the Fuel Tank Cap in place, the EVAP system can catch these exhaust gases to stop them from seeping out and contaminating the atmosphere.
If your INFINITI Fuel Tank Cap no longer clicks into its opening, or if it frequently loosens after you've already tightened it, you likely have a damaged or worn out gas cap. Because the cap is part of the EVAP system in your INFINITI, your check engine light may come on if your gas cap is breaking. Other indicators of a worn out Fuel Tank Cap include smelling gasoline while driving and decreased fuel efficiency (with no change in your driving habits).
There are a couple of consequences of a Fuel Tank Cap that has cracked or worn down. A Fuel Tank Cap that doesn't fully seal can release damaging byproducts into the air around your INFINITI, and it could also create other significant problems within your INFINITI's engine. A broken Fuel Tank Cap can decrease engine performance, lead to poor gas mileage, and cause fuel leakage. You should consider replacing the Fuel Tank Cap in your INFINITI immediately once you notice that it is not operating as it should.
Replacing an old Fuel Tank Cap is fast and easy, and you can do it yourself. You just need to shop directly with INFINITI Genuine Parts to get the best possible fit.
This Fuel Tank Cap (reference number 1725179961) will fit the following: INFINITI G35 2003-2006, INFINITI I35 2002-2004, INFINITI M45 2003, or INFINITI QX4 2001-2003. See the What This Fits section for additional information.
CAP ASSY-FILLER
Fits G35, I30, I35, M45, QX4