difference (?): OEM vs aftermarket gas cap
07-12-2014, 01:32 PM
#1
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Thread Starter
Join Date: Nov 2012
Posts: 1
difference (?): OEM vs aftermarket gas cap
2010 Maxima SE, bought used with no service records or documentation. Last week I had Nissan green antifreeze and an OEM radiator cap installed. Though the vehicle passed inspection in March (which I'm told includes a gas cap gasket test) I'm wondering: if it (the gas cap) is as old as the car, should it be replaced with a new one? And if so, unlike the $25 radiator cap, can a fully functioning one be found on most reputable auto parts stores?
I'd read that silicone spray is suggested for the seal/gasket on gas caps. Not that I'm averse to spending the dough on a new cap, but seeing as how I've already got a can of that spray, what do you say on spritzing the seal?
Apologies in advance if question has been previously resolved; I went through 6 pages of forum threads looking for "gas cap" in the subject.
I'd read that silicone spray is suggested for the seal/gasket on gas caps. Not that I'm averse to spending the dough on a new cap, but seeing as how I've already got a can of that spray, what do you say on spritzing the seal?
Apologies in advance if question has been previously resolved; I went through 6 pages of forum threads looking for "gas cap" in the subject.
07-12-2014, 01:36 PM
#2
2010 Maxima SE, bought used with no service records or documentation. Last week I had Nissan green antifreeze and an OEM radiator cap installed. Though the vehicle passed inspection in March (which I'm told includes a gas cap gasket test) I'm wondering: if it (the gas cap) is as old as the car, should it be replaced with a new one? And if so, unlike the $25 radiator cap, can a fully functioning one be found on most reputable auto parts stores?
I'd read that silicone spray is suggested for the seal/gasket on gas caps. Not that I'm averse to spending the dough on a new cap, but seeing as how I've already got a can of that spray, what do you say on spritzing the seal?
Apologies in advance if question has been previously resolved; I went through 6 pages of forum threads looking for "gas cap" in the subject.
I'd read that silicone spray is suggested for the seal/gasket on gas caps. Not that I'm averse to spending the dough on a new cap, but seeing as how I've already got a can of that spray, what do you say on spritzing the seal?
Apologies in advance if question has been previously resolved; I went through 6 pages of forum threads looking for "gas cap" in the subject.
07-13-2014, 04:19 PM
#3
Member
Join Date: Sep 2011
Location: Lubbock, Texas
Posts: 245
The fuel cap is designed to mitigate air pressure in the tank through very small vents in the cap (much like the radiator cap). I think they're only about $20 or so on Nissanpartsasap.com. The cost compared to an aftermarket cap is not that much, so I'd say just get the OEM one and don't risk getting a bad aftermarket cap. I just replaced mine with an OEM one and it's certainly helped abate the pressure build-up.
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