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Old Jan 18, 2010 | 04:57 PM
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Default WD40 Question?

Will WD40 damage my paintwork?

I was also going to use it to clean my engine bay, is this okay to use?

Thanks

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Old Jan 18, 2010 | 05:08 PM
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You'd be better off not using WD40. It won't damage paintwork as such but it will soften/muck about with wax finishes - both under the bonnet and elsewhere. It won't do your belts any favours either.

It has its uses for dissolving tar spots, grease and suchlike, but there are much better things for cleaning an engine bay with.
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Old Jan 18, 2010 | 05:09 PM
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gunk!!!
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Old Jan 18, 2010 | 05:38 PM
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If any of your paintwork is oxidised, the WD40 will mark it with an oil stain that is hard to remove.

It IS good for getting rid of tar spots and sticky label resdue.
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Old Jan 18, 2010 | 06:25 PM
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WD40 is a lubricant not a cleaner. I use my wife's motorbike muc-off underneath the bonnet and the results are good - very good. You can get lots of good cleaners these days but ultimately most lubricants affect paintwork adversely.
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Old Jan 18, 2010 | 06:33 PM
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i find the best thing to use is autoglym engine cleaner with toothbrush's and bottle brush's and a couple of hours then followed up with autoglym rubber and vinyl care and your engine will look brand new mate
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Old Jan 18, 2010 | 06:38 PM
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Originally Posted by Splitpin
You'd be better off not using WD40. It won't damage paintwork as such but it will soften/muck about with wax finishes - both under the bonnet and elsewhere. It won't do your belts any favours either.

It has its uses for dissolving tar spots, grease and suchlike, but there are much better things for cleaning an engine bay with.
Originally Posted by alcazar
If any of your paintwork is oxidised, the WD40 will mark it with an oil stain that is hard to remove.

It IS good for getting rid of tar spots and sticky label resdue.
I was using it to clean oil and thick dirt on the inside of the doors and so on and it got on the exterior paintwork, just thought i would check if it would damage it.

Should i be cleaning it off with water after?

Originally Posted by rifleman
gunk!!!
What is gunk?

Thanks a lot

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Old Jan 18, 2010 | 06:40 PM
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Originally Posted by T4YLOR 83
i find the best thing to use is autoglym engine cleaner with toothbrush's and bottle brush's and a couple of hours then followed up with autoglym rubber and vinyl care and your engine will look brand new mate
Is Autoglym engine cleaner and rubber and vinyl care okay to get on the paintwork? Or if it does touch paintwork is it best to wash it off?

Thanks

Last edited by Saalro; Sep 28, 2017 at 10:04 PM.
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Old Jan 18, 2010 | 10:14 PM
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".....What is gunk?......"

Gunk is commercial product used for cleaning engines (and lots of other things !!)
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Old Jan 18, 2010 | 10:33 PM
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Thanks

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Old Jan 18, 2010 | 10:58 PM
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Originally Posted by Saalro
I was using it to clean oil and thick dirt on the inside of the doors and so on and it got on the exterior paintwork, just thought i would check if it would damage it.

Should i be cleaning it off with water after?
As above, WD40 will lift wax and other treatments, so on exterior paintwork, you'd be best rubbing a cloth with some detergent over the affected area, rinsing with clean water, drying and then applying some fresh wax.

Originally Posted by Saalro
Is Autoglym engine cleaner and rubber and vinyl care okay to get on the paintwork? Or if it does touch paintwork is it best to wash it off?
Engine cleaner just rinse off with water. V&RC, what does it say on the can?
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Old Jan 19, 2010 | 01:03 AM
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I've just bought a used v.3/4 IM complete with all ancillaries attached , etc. It's unpainted (so from a non-STi variant) and is a bit superficially tatty looking, wth oil and dirt on it, that's hard to shift with WD40 or similar, alone.

Can anyone recommend a really good degreaser (that doesn't attack rubber hoses), and which doesn't involve too much elbow grease to shift off the dirt and oil, once applied?

Are there any good, spray on... leave... wash off, solutions out there, for example?

All suggestons welcome....

Last edited by joz8968; Jan 19, 2010 at 01:05 AM.
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Old Jan 19, 2010 | 07:20 AM
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Originally Posted by joz8968
I've just bought a used v.3/4 IM complete with all ancillaries attached , etc. It's unpainted (so from a non-STi variant) and is a bit superficially tatty looking, wth oil and dirt on it, that's hard to shift with WD40 or similar, alone.

Can anyone recommend a really good degreaser (that doesn't attack rubber hoses), and which doesn't involve too much elbow grease to shift off the dirt and oil, once applied?
Ideally strip the ancills off it and have it water/sand blasted. If that isn't an option, this stuff is the nad's danglers.
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Old Jan 19, 2010 | 08:17 AM
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Looks good stuff that SP - might give that a go. I presume you have used it?
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Old Jan 19, 2010 | 01:09 PM
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Cheers SP

Just bought some... but from, it would appear, to be the sole proprietor of said stuffs, on eBay (45p cheaper all in, than if bought from Frost. ):-

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=380054985652


EDIT: Hold on a min... is that THE Mike Wood of Prodrive fame, that's set up Frost...?!:-

http://www.frost.co.uk/about_us.asp

Last edited by joz8968; Jan 19, 2010 at 01:18 PM.
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Old Jan 23, 2010 | 10:36 PM
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Splitpin, well what can I say? The stuff's awesome! The IM looks all but brand new. It cleans like a b@stard!

I like the way it gives it that slightly darkened 'silver-grey' colour too - perfectly passable as an acceptable 'finish'. Groovy.

Cheers dudey.

Last edited by joz8968; Jan 23, 2010 at 10:46 PM.
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Old Jan 23, 2010 | 10:50 PM
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would that stuff in the link above be ok to clean a FMIC , i sprayed mine with WD40 to stop it corroding but then everthing stuck to it and it looks all dirty , cheers
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Old Jan 23, 2010 | 11:01 PM
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It should clean it great (going on my experience, at least) - esp. if you work it in with a stiff nylon brush. You may have to do 3 or 4 applications, but I'm sure it'll work great, though. You just wash off with running water between each app.

There is a caveat: your shiny silver looking FM just MAY turn to more of a darkened 'grey' colour, as I've experienced.

Last edited by joz8968; Jan 23, 2010 at 11:03 PM.
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