Recent Topics
Friend Picked Up New 2017 Hyundai Santa Fe Today
by crazyoildude
07/30/16 07:07 PM
15.5hp kawasaki engine uoa
by motor_oil_madman
07/30/16 06:25 PM
Best way to remove old tape pin striping
by 007
07/30/16 06:10 PM
Fram Ultra XG-2 Holes On Center Tube
by crazyoildude
07/30/16 06:03 PM
New Dillon CV-2001 Tumbler
by 2015_PSD
07/30/16 05:16 PM
Any video gamers?
by NavyVet88
07/30/16 04:40 PM
Full Synthetic High Mileage Oil
by jsjonz01
07/30/16 04:38 PM
Road trip on new vehicle?
by mrjlube
07/30/16 03:54 PM
Oil Infatuation
by Passport1
07/30/16 03:43 PM
FREE T-SHIRT, $10, AND GOD KNOWS WHAT ELSE....
by macarose
07/30/16 03:16 PM
Griot's Brilliant Finish Carwash
by SavagePatch
07/30/16 02:25 PM
Hanging 3rd - Honda Automatic
by RevelationLion
07/30/16 01:31 PM
Newest Members
kenb777, Indyfan3, RM53119, Ctanke, jractk
58649 Registered Users
Who's Online
67 registered (alanwayne1908, 07Piloteer, adamrc, AIRJAC3, Best F100, aquariuscsm, 6 invisible), 1745 Guests and 7 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
58649 Members
66 Forums
252460 Topics
4140695 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3203215 - 12/01/13 06:18 PM WD40 o rings ?
Ndx Offline


Registered: 04/04/08
Posts: 1773
Loc: IL
Hey Guys,

Anytime I have to slide something with o ring I will lube it with WD40
A) it will not migrate like let say vaseline but it will evaporate

WD40 website says safe for rubber
I seen some diy test where orings were not affected after seating for 24hrs

Should I replace orings that I used WD40 on ?
Or not worry about it ?

Top
#3203222 - 12/01/13 06:26 PM Re: WD40 o rings ? [Re: Ndx]
Quattro Pete Offline


Registered: 10/30/02
Posts: 31798
Loc: Great Lakes
If I remember our last discussion on this correctly, according to the manufacturer of WD40, it is safe on o-rings.
_________________________
'02 530i (Edge HM 10W-40)
'15 Q5 3.0T (Edge 5W-40)

Top
#3203226 - 12/01/13 06:27 PM Re: WD40 o rings ? [Re: Ndx]
morepwr Offline


Registered: 01/17/12
Posts: 1721
Loc: ventura, ca
Your correct. The WD40 will evaporate off and wont hurt a thing. No worries.

Top
#3203237 - 12/01/13 06:50 PM Re: WD40 o rings ? [Re: Ndx]
DB_Cooper Offline


Registered: 10/01/07
Posts: 347
Loc: Ga
Originally Posted By: Ndx
Hey Guys,

Anytime I have to slide something with o ring I will lube it with WD40
A) it will not migrate like let say vaseline but it will evaporate

WD40 website says safe for rubber
I seen some diy test where orings were not affected after seating for 24hrs

Should I replace orings that I used WD40 on ?
Or not worry about it ?


Don't worry about it...anything is better than nothing and WD-40 is harmless. Personally, I use Vaseline. Vaseline melts at about 100*F and I have not noticed any mess. It disappears very quickly around a hot engine. Never had a seal/lip or "O" ring leak with Vaseline..(knock on wood)

Top
#3203331 - 12/01/13 08:46 PM Re: WD40 o rings ? [Re: Ndx]
eljefino Offline


Registered: 06/15/03
Posts: 29471
Loc: ME
I've used motor oil on gas line fittings and the appropriate fluid (PS, ATF, etc) on everything else.

Probably too little to make any difference.

Top
#3203336 - 12/01/13 08:49 PM Re: WD40 o rings ? [Re: Ndx]
Donald Offline


Registered: 03/21/04
Posts: 17062
Loc: Upstate NY
O-rings are normally made of neoprene rather than rubber. Personally I would use a silicone based grease like Sil-glyde.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2001 Jeep Grand Cherokee Laredo 4.0- sold
1999 Dodge Ram 2500 w/Cummins- 4-sale


Top
#3203347 - 12/01/13 08:57 PM Re: WD40 o rings ? [Re: Ndx]
Ndx Offline


Registered: 04/04/08
Posts: 1773
Loc: IL
Thx, should I replace them then ?

According to WD40,neoprene is not affected by it...

For all variations : WD-40 demonstrates none to negligible deleterious effect to plastic, rubber, and metal hard surfaces. This includes Acetal, neoprene/hard rubber, HDPE, PPS Copolymer Polysulfone, Teflon, Viton, steel, galvanized steel hot dip, electroplated, copper, brass, magnesium, nickel, tin plate, titanium, and zinc

According to msd there are some rubbers that will swell after prolonged exposure... Orings are pretty tight sealing stuff so I wonder if it will evaporate or because its tight its just gonna sit there ?


Edited by Ndx (12/01/13 09:06 PM)

Top
#3220447 - 12/18/13 09:30 AM Re: WD40 o rings ? [Re: Ndx]
buck91 Offline


Registered: 04/17/12
Posts: 1644
Loc: West Michigan
Is wd40 still Stoddard solvent, mineral oil and an evaporative carrier?
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
1980 Yamaha XS850G

Top