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Oil fill gasket #4480822
08/06/17 12:31 PM
08/06/17 12:31 PM
Joined: Jun 2017
Posts: 110
FL, USA
shurguywutt Offline OP
shurguywutt  Offline OP
Joined: Jun 2017
Posts: 110
FL, USA


So I was looking at my oil fill cap the other day and did not notice a gasket like the drawing shows for # 10. Only other explanation is that it is there and it just looks like part of the cap. Any other Honda owners missing one?


2008 Pilot 2WD J35Z1 148k
Maxlife Blend 10w-30
FRAM Ultra Synthetic
Fumoto F106SX
Re: Oil fill gasket [Re: shurguywutt] #4480840
08/06/17 12:48 PM
08/06/17 12:48 PM
Joined: Aug 2017
Posts: 565
Nebraska
BJD78 Offline
BJD78  Offline
Joined: Aug 2017
Posts: 565
Nebraska
That got me to wondering so I went out to my 2002 CRV and checked and saw no gasket, however the cap goes on and seems to seal ok and no evidence of losing oil via the cap not sealing, so I am not going to worry about it. I think as long as it seals and does not leak it is OK.


2010 Forester:122K
2009 Sonata :189K
2010 Tucson:55K

OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.
Re: Oil fill gasket [Re: shurguywutt] #4480851
08/06/17 01:00 PM
08/06/17 01:00 PM
Joined: Jul 2008
Posts: 286
Bucks, PA
zfasts03 Offline
zfasts03  Offline
Joined: Jul 2008
Posts: 286
Bucks, PA
This is more like a big thick O-ring that sits in a round grove on the bottom of the fill cap. When in the correct position, you may not notice it is there. When missing, you will notice the empty grove.

For some reason on my `07 Accord the o-ring comes off the cap sometimes.


03 Corvette Z06
-Amsoil 5w-30 SS
07 Honda Accord 2.4L
-Amsoil 5w-20 SS
16 Suburban 5.3L
-M1 0w-20, XG10575
18 4Runner TRD Off Road
- Amsoil 0w-30 SS, TRD filter
Re: Oil fill gasket [Re: shurguywutt] #4480900
08/06/17 01:44 PM
08/06/17 01:44 PM
Joined: Mar 2004
Posts: 21,121
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 21,121
Upstate NY
I cannot imagine a "gasket" being using in a oil fill cap. It is almost certainly an o-ring.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Oil fill gasket [Re: Donald] #4480916
08/06/17 01:57 PM
08/06/17 01:57 PM
Joined: Aug 2010
Posts: 5,940
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,940
Champlain/Hudson Valley
My car has a flat gasket the thickness of the plastic used in many a water bottle but not as thick as, say, a Clorox bottle. It's a maintenance item.

Re: Oil fill gasket [Re: shurguywutt] #4480955
08/06/17 02:46 PM
08/06/17 02:46 PM
Joined: Jun 2017
Posts: 110
FL, USA
shurguywutt Offline OP
shurguywutt  Offline OP
Joined: Jun 2017
Posts: 110
FL, USA
I just looked again... It is there its inside a groove... I messed with it a little and got it loose. When its in the groove it looks like its not even there.


2008 Pilot 2WD J35Z1 148k
Maxlife Blend 10w-30
FRAM Ultra Synthetic
Fumoto F106SX
Re: Oil fill gasket [Re: shurguywutt] #4481119
08/06/17 05:45 PM
08/06/17 05:45 PM
Joined: Apr 2005
Posts: 600
NE Ohio
knerml Offline
knerml  Offline
Joined: Apr 2005
Posts: 600
NE Ohio
If you gasket was missing your CEL would fire

Last edited by knerml; 08/06/17 05:45 PM.

2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: Oil fill gasket [Re: zfasts03] #4481320
08/06/17 09:01 PM
08/06/17 09:01 PM
Joined: Dec 2009
Posts: 26,231
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 26,231
Regina, Saskatchewan, Canada
Originally Posted By: zfasts03
This is more like a big thick O-ring that sits in a round grove on the bottom of the fill cap. When in the correct position, you may not notice it is there. When missing, you will notice the empty grove.

Yes, I think my old Audi was the same way. You could also order a replacement gasket, or a replacement cap with gasket.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Oil fill gasket [Re: shurguywutt] #4481938
08/07/17 02:43 PM
08/07/17 02:43 PM
Joined: Aug 2017
Posts: 565
Nebraska
BJD78 Offline
BJD78  Offline
Joined: Aug 2017
Posts: 565
Nebraska
I did notice that O ring today under better light conditions. The Rubber O ring is pretty much flush with the cap surface, but it does not appear to be having oil blow by or leakage. Of course the cap on mine appears to be an after market cap not a Honda cap. I will buy an OEM cap if it ever starts leaking.


2010 Forester:122K
2009 Sonata :189K
2010 Tucson:55K

OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.

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