WD40 & brake cleaner oxygen sensor safe?

[Blaine B.]

I'm gonna say WD40 and brake cleaner are both oxygen sensor safe since neither contain silicone. Am I right?

 

[motorcityxj]

I'm gonna say WD40 and brake cleaner are both oxygen sensor safe since neither contain silicone. Am I right?

brake cleaner yes, my dad told me years ago NOT to use wd40 near my car or my jeep.

 

[Blaine B.]

Oh ok. I know some people dripped in a drop or two of WD40 into the idle air controller where the "spring" and stepper motor are.....

 

[motorcityxj]

found this:

What does WD-40 contain?
While the ingredients in WD-40 are secret, we can tell you what WD-40 does NOT contain. WD-40 does not contain silicone, kerosene, water, wax, graphite, chlorofluorocarbons (CFCs), or any known cancer-causing agents.


its the second paragraph on this link

http://www.wd40.com/Brands/wd40_faqs.html

 

[Blaine B.]

That's how I first found out it didn't contain silicone......but is that (silicone) the only evil predator of oxygen sensors? Not sure.

 

[GrimmJeeper]

eazy-off oven cleaner will take anything off an o2 sensor :thumbup: ive gotten 2 cars to pass smog just by cleaning the buildup off of em

 

[8Mud]

found this:

What does WD-40 contain?
While the ingredients in WD-40 are secret, we can tell you what WD-40 does NOT contain. WD-40 does not contain silicone, kerosene, water, wax, graphite, chlorofluorocarbons (CFCs), or any known cancer-causing agents.


its the second paragraph on this link

http://www.wd40.com/Brands/wd40_faqs.html

If it isn't wax, it is likely some kind of resin. It leaves a coating with a fairly high electrical resistance.
Just to make sure I'm not full of it, I just went out and measured the resistance in a black steel brake spoon I'd sprayed with WD-40 a couple of days ago (mostly tack dried). It showed infinite resistance, I pressed down with aproximately twenty pounds of pressure and it still had infinite resistance. I scratched through the coating and had "0" resistance 200 ohm scale.
It sure enough leaves some kind of persistant coating. It may not be wax, but something with many of the same properties. It has been known to attack some kinds (compositions) of O rings.
I tried fresh oil on some blank steel, infinite resisitance with no pressure, "0" resistance (or nearly, the meter wandered some), with moderate (3 pounds or so) of pressure, 200 ohm scale.
WD 40 on most any low voltage connection, is asking for trouble.
I use WD 40 a lot, but am carefull what I use it on.
Most anything that leaves a persistant coating can't be good for an O2 sensor. I imagine they have designed around carbon, soot and other common coatings. I'd avoid unknowns or anything not labeled O2 sensor safe.

 

[Bradlybob]

I read something somewhere recently that the main ingredient is fish oil. I've seen guys spray it on a piece of sponge and catch catfish with it. Also seen it sprayed on lures. Maybe thats why it works as bait.

 

[RichP]

Geeze, won't it ever end, it's a WATER DISPLACMENT compound designed by boeing and used originally in B52's to protect the miles of WIRING harness's in them. WD0-WD39 aparently did not work out so well...

 

[Blaine B.]

I saw a video of a B52 crashing....and then exploding. Maybe the exploding wasn't from the gas tanks after all?

 

[RichP]

I saw a video of a B52 crashing....and then exploding. Maybe the exploding wasn't from the gas tanks after all?

That might have been from WD-39