WD-40 As Engine Degreaser
Moderators: Helpinators, Moderators
-
- Third Gear
- Posts: 819
- Joined: Wed Oct 27, 2004 6:54 am
- Location: Arlington, VA
WD-40 As Engine Degreaser
I stumbled on this post of a guy using WD40 to detail his engine bay (with amazing results!) http://www.autopia.org/forum/click-brag ... -pics.html
I went and tried it on an inconspicuous spot in my engine bay and it seemed help some. I've heard WD40 is nasty on rubber and some plastics, is this true? Will it leave a residue that could be flammable or really smelly?
I went and tried it on an inconspicuous spot in my engine bay and it seemed help some. I've heard WD40 is nasty on rubber and some plastics, is this true? Will it leave a residue that could be flammable or really smelly?
Last edited by Subaru_Nation555 on Tue Mar 30, 2010 3:55 am, edited 1 time in total.
'06 Impreza 2.5i wagon
-
- Fifth Gear
- Posts: 8360
- Joined: Mon Nov 06, 2006 3:41 am
- Location: Tenino, WA
Re: WD-40 As Engine Degreaser
I'm not buying that. You would have to remove parts to get them that clean. How could you fit your hand in those areas to clean them? Check out his motor mounts. They look pretty rusty in those pictures but then in the after pictures they're suddenly brand new and painted again.
His battery is totally different. He's changed spark plug wires. He doesn't mention changing these parts which you'd think he would. The before pictures have dates on them and the after pictures do not suggesting either they aren't his pictures, were taken with a different camera or perhaps 4 days later he changed the settings to turn the date off? I doubt it.
The bolts and nuts go from rusty to nice and shity steel again. C'mon. I don't know what his motive would be for lieing and maybe he's not but it sure looks fishy...get it? WD-40 is mainly fish oil! lolz
His battery is totally different. He's changed spark plug wires. He doesn't mention changing these parts which you'd think he would. The before pictures have dates on them and the after pictures do not suggesting either they aren't his pictures, were taken with a different camera or perhaps 4 days later he changed the settings to turn the date off? I doubt it.
The bolts and nuts go from rusty to nice and shity steel again. C'mon. I don't know what his motive would be for lieing and maybe he's not but it sure looks fishy...get it? WD-40 is mainly fish oil! lolz
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
-
- Fifth Gear
- Posts: 8360
- Joined: Mon Nov 06, 2006 3:41 am
- Location: Tenino, WA
Re: WD-40 As Engine Degreaser
On the next page he mentions powdercoating some items and admits to changing parts. If you keep going he mentions replacing bolts too. I believe he replaced the radiator and hoses as well.
So if that really is his car, he didn't just use WD-40 to get it to look like that. There was a lot more he didn't originally mention.
Your engine would smell horribly like WD-40 and I doubt it would go away any time soon.
So if that really is his car, he didn't just use WD-40 to get it to look like that. There was a lot more he didn't originally mention.
Your engine would smell horribly like WD-40 and I doubt it would go away any time soon.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
Re: WD-40 As Engine Degreaser
WD-40 is a pretty good cleaner, and a good preservitive/water displacer. It does the job it was designed for. If you leave it on, it will help prevent rust/corrosion, and it will keep stuff from sticking to it when you wash.
It will also act as an attractant, and collect dust and dirt from everywhere. You really need to clean w/ soap after WD40.
It will also act as an attractant, and collect dust and dirt from everywhere. You really need to clean w/ soap after WD40.
'92 Legacy SS, AGX, GC coilover, ALK, 20mm ARSB, FCD, MBC, iceracer, rallyx and DD
'87 Mustang GT roadracer, to many mods to list
'87 Mustang GT roadracer, to many mods to list
-
- Fifth Gear
- Posts: 8360
- Joined: Mon Nov 06, 2006 3:41 am
- Location: Tenino, WA
Re: WD-40 As Engine Degreaser
I was thinking the same thing.kbeefy wrote:It will also act as an attractant, and collect dust and dirt from everywhere. You really need to clean w/ soap after WD40.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
Re: WD-40 As Engine Degreaser
BULLLL SHIT dont belive it more like days and days of work or maybee a gallon of wd40 in a pressure washer
1990 Subaru Legacy L 89k auto to 5 speed winter daily driver
2004 Subaru WRX 80k
1988 Mazda Rx7 vert > Turbo 2 trans swap
1993 Honda Civic Vx Gutted
2004 Subaru WRX 80k
1988 Mazda Rx7 vert > Turbo 2 trans swap
1993 Honda Civic Vx Gutted
Re: WD-40 As Engine Degreaser
WD-40 is a cleaner when evaporated it leaves very little behind to lubricate with. Seems like a good idea I guess. I would do it after a hard hot drive and the crud should just wipe off.
BTW -WD-40 is very bad for humans. Getting a little on ur skin is not so bad.
Using it with a spray bottle in a semi- enclosed space that ur practically sticking ur head in/ is bad bad news.
Expect to be very ill for 10-24 hours as it is easily inhaled. I hate the stuff with a passion, as it is one of the only things in the world that has truely made me ill way to many times! It says corrossive on the can.
I can't imagine it would be good for any plastics/rubber. A silicon lube is prefered for that i think. But I used to use it ALOT at work and i can't remember it graying or drying out any plastic there. In alot of Bicycle shops it is a staple cleaner/lube for everything
BTW -WD-40 is very bad for humans. Getting a little on ur skin is not so bad.
Using it with a spray bottle in a semi- enclosed space that ur practically sticking ur head in/ is bad bad news.
Expect to be very ill for 10-24 hours as it is easily inhaled. I hate the stuff with a passion, as it is one of the only things in the world that has truely made me ill way to many times! It says corrossive on the can.
I can't imagine it would be good for any plastics/rubber. A silicon lube is prefered for that i think. But I used to use it ALOT at work and i can't remember it graying or drying out any plastic there. In alot of Bicycle shops it is a staple cleaner/lube for everything
"Hows the transition look?"
91 turbo manual
BMX in the trunk!!!
91 turbo manual
BMX in the trunk!!!
Re: WD-40 As Engine Degreaser
Personally I've found that WD40 is subpar at just about everything, I've found no reason to use it. Specifically it's not a very good lubricant, and it's not so good for breaking stuck bolts loose.sublunacy wrote:WD-40 is a cleaner when evaporated it leaves very little behind to lubricate with. Seems like a good idea I guess. I would do it after a hard hot drive and the crud should just wipe off.
BTW -WD-40 is very bad for humans. Getting a little on ur skin is not so bad.
Using it with a spray bottle in a semi- enclosed space that ur practically sticking ur head in/ is bad bad news.
Expect to be very ill for 10-24 hours as it is easily inhaled. I hate the stuff with a passion, as it is one of the only things in the world that has truely made me ill way to many times! It says corrossive on the can.
I can't imagine it would be good for any plastics/rubber. A silicon lube is prefered for that i think. But I used to use it ALOT at work and i can't remember it graying or drying out any plastic there. In alot of Bicycle shops it is a staple cleaner/lube for everything
Re: WD-40 As Engine Degreaser
Amen.PB blaster for the win,WD-40 for the suck.Personally I've found that WD40 is subpar at just about everything, I've found no reason to use it. Specifically it's not a very good lubricant, and it's not so good for breaking stuck bolts loose.
94SS.Wiseco forged pistons,TD04,TMIC,WALBRO 225,440's,3" all the way,revtronix stage 2,enough other crap to fill the internet.
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
-
- Knowledgeable
- Posts: 9809
- Joined: Mon Jun 16, 2003 11:20 pm
- Location: Beverly, MA
Re: WD-40 As Engine Degreaser
I never use it, either. PB Blaster is much better as a penetrant and there are marine products that own for lubrication and penetration that also don't damage rubber. Shit, reading that sentence back, I could probably say that same thing to sell that product in rubber fetish magazines.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Re: WD-40 As Engine Degreaser
PB blaster is $10 a can and its a penetrant, exactly!!! well done guys, u read the can properly.
Slow down jesus!
Slow down jesus!
"Hows the transition look?"
91 turbo manual
BMX in the trunk!!!
91 turbo manual
BMX in the trunk!!!
Re: WD-40 As Engine Degreaser
Id hate to shop where you doPB blaster is $10 a can

Costs the same as WD in my parts,makes it even more of a no brainer.
94SS.Wiseco forged pistons,TD04,TMIC,WALBRO 225,440's,3" all the way,revtronix stage 2,enough other crap to fill the internet.
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
-
- Knowledgeable
- Posts: 9809
- Joined: Mon Jun 16, 2003 11:20 pm
- Location: Beverly, MA
Re: WD-40 As Engine Degreaser
Yeah, I'd never buy PB for that much. Same as WD40 around here as well. The marine stuff is about that price.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Re: WD-40 As Engine Degreaser
Are you cutting me up again. Don't you have something better to do than confuse people with your jiberish?
PB blaster is a penatrant wow! You should start a thread with that brilliant observation.
Loser!
I made a date squirt earlier this week again, What did you do? Let me guess? caught in the vise of work and traffic?
PB blaster is a penatrant wow! You should start a thread with that brilliant observation.
Loser!
I made a date squirt earlier this week again, What did you do? Let me guess? caught in the vise of work and traffic?
"Hows the transition look?"
91 turbo manual
BMX in the trunk!!!
91 turbo manual
BMX in the trunk!!!
Re: WD-40 As Engine Degreaser
Umm..hope theres some sarcasm there bucko,if not you are clearly unable to take part in any form of normal chat - seeing as no one here has made any personal remarks at all aside from you, in fact I dont even know what put the sand in your vagina here.Please STFU if you really are that much of a douche.Are you cutting me up again. Don't you have something better to do than confuse people with your jiberish?
PB blaster is a penatrant wow! You should start a thread with that brilliant observation.
Loser!
I made a date squirt earlier this week again, What did you do? Let me guess? caught in the vise of work and traffic?
94SS.Wiseco forged pistons,TD04,TMIC,WALBRO 225,440's,3" all the way,revtronix stage 2,enough other crap to fill the internet.
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
-
- Knowledgeable
- Posts: 9809
- Joined: Mon Jun 16, 2003 11:20 pm
- Location: Beverly, MA
Re: WD-40 As Engine Degreaser
Wow, I usually don't bother to respond to morons, especially those whose insecurity must be crushing to anyone with the misfortune to occupy a close space with them, but I also have used PB and marine products (Zep 45 and PLS) to CLEAN SHIT AS WELL. Amazing that such an innocuous topic had to be brought to such a level. Congratulations. Or maybe I'm just not catching the sarcasm.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Re: WD-40 As Engine Degreaser
All you have said is PB blaster for penetration. This thread was started about cleaning up the engine bay.
Your in the wrong place brother.
Quote from Harley-performance.com about wd-40
"Almost 60% of this solution is an aromatic corrosive solvent designed to penetrate with a suspended paraffin lubricant designed to remain upon evaporation. There are rumors that WD-40 will actually eat away at certain metals and rubber, but the fact remains that WD-40 is NOT a CHAIN LUBE."
Quote from wiki
"Formulation
WD-40's formula is a trade secret. The product is not patented in order to avoid completely disclosing its ingredients.[2] WD-40's main ingredients, according to U.S. Material Safety Data Sheet information, are:
50%: Stoddard solvent (i.e., mineral spirits -- primarily hexane, somewhat similar to kerosene)
25%: Liquefied petroleum gas (presumably as a propellant; carbon dioxide is now used instead to reduce WD-40's considerable flammability)
15+%: Mineral oil (light lubricating oil)
10-%: Inert ingredients
There is a popular, but incorrect, urban legend that the key ingredient in WD-40 is fish oil.[3] The WD-40 web site states that it is a petroleum based product [4]"
A little something on PB blaster now Straight from the companies DATA sheets
Stability: This product is stable.
Conditions to avoid: Avoid excessive heat, sources of ingition and excessive water.
Avoid contact with strong oxidizing agents and strong reducing agents (strong
acids or bases.) Avoid mixture with water.
Materials to avoid (incompatability):
Hazardous Decomposition products: Carbon monoxide, carbon dioxide, and various hydrocarbons.
Hazardous Polymerization: Will not occur.
AND....
Solvent Naptha 40-50%
Heavy petrolium distilate 20-30%
Hydrotreated light distilate 30-40%
----------------------------------------------------------------------------
Conclusion-
Seems pb blaster is different huh it doesn't like water!
WD-40 is a water displacer hence WD
If you want to add something to that, I call it a conversation
Your in the wrong place brother.
Quote from Harley-performance.com about wd-40
"Almost 60% of this solution is an aromatic corrosive solvent designed to penetrate with a suspended paraffin lubricant designed to remain upon evaporation. There are rumors that WD-40 will actually eat away at certain metals and rubber, but the fact remains that WD-40 is NOT a CHAIN LUBE."
Quote from wiki
"Formulation
WD-40's formula is a trade secret. The product is not patented in order to avoid completely disclosing its ingredients.[2] WD-40's main ingredients, according to U.S. Material Safety Data Sheet information, are:
50%: Stoddard solvent (i.e., mineral spirits -- primarily hexane, somewhat similar to kerosene)
25%: Liquefied petroleum gas (presumably as a propellant; carbon dioxide is now used instead to reduce WD-40's considerable flammability)
15+%: Mineral oil (light lubricating oil)
10-%: Inert ingredients
There is a popular, but incorrect, urban legend that the key ingredient in WD-40 is fish oil.[3] The WD-40 web site states that it is a petroleum based product [4]"
A little something on PB blaster now Straight from the companies DATA sheets

Stability: This product is stable.
Conditions to avoid: Avoid excessive heat, sources of ingition and excessive water.
Avoid contact with strong oxidizing agents and strong reducing agents (strong
acids or bases.) Avoid mixture with water.
Materials to avoid (incompatability):
Hazardous Decomposition products: Carbon monoxide, carbon dioxide, and various hydrocarbons.
Hazardous Polymerization: Will not occur.
AND....
Solvent Naptha 40-50%
Heavy petrolium distilate 20-30%
Hydrotreated light distilate 30-40%
----------------------------------------------------------------------------
Conclusion-
Seems pb blaster is different huh it doesn't like water!
WD-40 is a water displacer hence WD
If you want to add something to that, I call it a conversation
"Hows the transition look?"
91 turbo manual
BMX in the trunk!!!
91 turbo manual
BMX in the trunk!!!
Re: WD-40 As Engine Degreaser
Cool, that doesn't change the fact that WD-40 is a bad choice for everything. Sure it can do a mediocre job at everything, but it doesn't do anything well. If I want to clean an engine I'll use engine cleaner, lubricate something I'll use lithium, and of course PB as a penetrator. I can't think of anything that WD is the best choice for.
Re: WD-40 As Engine Degreaser
There must be some NASIOC posters spilling on to our forum 

94SS.Wiseco forged pistons,TD04,TMIC,WALBRO 225,440's,3" all the way,revtronix stage 2,enough other crap to fill the internet.
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
THE TRIBUTE BUILD>>>LINKY LINK>>> http://bbs.legacycentral.org/viewtopic.php?p=295455#295455
Re: WD-40 As Engine Degreaser
You can accomplish the same thing with good heavy duty degreaser commonly available from sam's club and a 1500+ psi power washer. Cover off electrical components and go to town.
1992 Legacy LS Special Wagon..
Re: WD-40 As Engine Degreaser
Thread is being closed. Everyone needs to chill.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm