The TRUTH about WD 40 vs Headlights!

I had to the WD 40 vs Headlights myth to rest. I used WD 40 to clean my headlight on my truck. I felt like the Toothpaste Method for cleaning headlights was a lot of scrubbing. Here is what happened after just a few minutes of rubbing WD 40 on my Toyota Tacoma Headlights!

** Update video on WD 40 and Headlights &
OFF Bug Spray vs Headlights-

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Disclaimer- This video is for entertainment purposes only.

[walterjunovich]

I sprayed some in my eyes and now my cataracts are GONE !!

[alan]

It’s temporary, folks. Check out other videos where they show this. In two weeks your headlights will be hazy again, so you just wasted your time. Motor oil will do the same thing. I tried it on my Jeep and in a few weeks later, the headlights were hazy again. This is a trick dealers use to make a car look good before they sell it. Check out other YouTube videos on it. The solution is to get one those kits and take fine grade sandpaper and sand down to remove the bad, pitted plastic and then apply a coating over it to make the headlights clear again, and will last a while.
There’s another video, where a guy takes different grits sandpaper and sands them down and then puts a clear spray coating on it, which is cheaper than using one of the kits.
I wish car manufacturers would go back to glass headlights, not this cheap, likely Chinese made crap, that eventually winds up in our landfills.

[phianzzz]

WD40 does fill the tiny scratches and swirl marks on the surface. But once it washed by soap water or simply evaporates, the swirl marks will be visible again. A bit of polishing + ceramic coating did a longer effect for me.

[jefflittle]

I tried this, but on half a lamp. For the first 15 minutes you could see a huge difference. 3 hours later you couldn't tell. Note that the lamp had already been through standard cleaning.

[billygr]

I used to use Wd40 but than I tried Mothers mag & aluminum polish to remove the yellowing off the headlights, last way longer and work better than WD40.

[rzarat]

I sprayed DW40 on my eyes and I can see clearly now!!

[johnthompson]

all it does is fill the microfractures with a liquid that matches the index of refraction of the solid. It doesn't smooth out anything, just masks the cuts. works pretty good though.

[DavidAndBeverlyShumate]

It's 1:40am with my wife and dog asleep in on sofa beside me and I just watched your video with Bluetooth video and thoroughly enjoying the curious exploration and possible life saving tip if that's all you got in a MacGyver situation! I favor the 3M headlight lens restoration kit that I think was only about $10 at Walmart but I did 3 vehicles with it so only $3-$4 per vehicle as good long term solution but just wanted to say thanks for the mythbusters style exploration which stuff like this bringing tje community together in a good way getting people to positively share their good knowledge and experiences and have some good entertainment along the way is partly what makes life so good!! Thanks again and God bless!

[TheMannyAdvan]

You need to sand the oxidation off, polish it, and seal it with a UV clear coat for long-lasting results. I restore headlights all the time.

[jimhamilton]

It clears the haze until you get the car washed and the W-D40 spray completely washes off. I tried it and it is BS

[eddierichards]

Tried this about 5 years ago. It lasts about a week in good weather. If you live in a state where to pass auto inspection you need clear headlights this will work fine too. Poor weather, rain or on dirt roads will cause the wd 40 to be compromised and IT WILL RETURN TO BEING FOGGY VERY QUICKLY . Much better to buy any of the many easily available headlight restoration kits that youL can get at any auto parts store.

[nickfatsis]

I love my car's headlights, the cover is glass not plastic, never get UV fog on them.

[KPatel-ygic]

Car manufacturers should go back to old days ! Instead of plastic they use real glass on lamp and never had this type problem

[denniseudela]

As long as no sanding is involved, it'll keep on coming back. It's gr8 for a quick temp fix though.
I ain't complainin'!

[ljaysperspective]

I use to detail cars at a an auction a few towns over. Basically what takes place is a cars hood, roof and trunk lid become oxidized. These 3 areas suffer the most from rain, snow and the sun. These ambient conditions hurt all cars and all models. It's best to keep your car in a garage or in the shade if possible. The head lights build up dirt and the sun bakes everything on them and that's why they appear partly hazed, yellow and cracked. WD-40 acts as a moisturizer on the surface. You will still see the haze under the shine. WD-40 cleans off the built in dirt and the silicone fills in the cracks on the surface of ur headlights therefore filling in and shinning up the headlights. No different then a women who puts on foundation then applying makeup, the surface imperfections are still there.. Eventually the WD-40 will fade or wash away with the rain or snow. It's a quick fix for selling a car with bad headlights. Well I hope this helps to better understanding what happens without going to in debt regarding active chemicals within WD-40.

[HoLDoNSec]

the reason why this works is very simple - this fogginess is actually the UV coating of the plastics of the headlight.
when your headlight gets foggy it means that the UV coating has gone bad and got really dried out,
the reason why WD40 can remove it, is because WD40 is abrasive enough that it CAN remove UV protection coating.
HOWEVER when you do this you basically sentence your headlight to death, the plastics will now begin to get dried out by the UV from the sun and eventually will turn yellow and develop cracks until eventually they will just break.
so basically if you do this with WD40 you MUST re-apply UV protection coating to your headlights, otherwise the plastics will decay extremely quickly.
this is why headlight restoration kits include abrasive material to remove the old dried UV coating and UV coating to re-apply after removing the old dried out UV coating.

[xtbradyx]

I used WD-40 on my headlights, waited for my wife to bring ME pot I'm calling a fake!!!!

[huzibr]

It worked. I tried it. But make sure you put the headlight restorer sealant afterwards for a long lasting effect.

[rlhilliard]

Your tip worked so fast and well I was elatated! Just think, if I asked a shop or dealer for help they would tell me I needed a whole new assembly ;) THANK YOU!

[ronmitchell]

I use a buffer and some plastic polish. 5 minutes and it lasts for about a year before it gets foggy.