Rain-X
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Windshield Fluid

Rain-X® Windshield Washer Fluid Additive

11806D Rain-X Washer Fluid Additive 16.9oz

Applies Rain-X® Technology

Simply add Rain‑X® Washer Fluid Additive to water or any windshield washer fluid to apply Rain‑X® technology.

FEATURES & BENEFITS

Applies

Instantly applies Rain‑X® technology to the windshield

Visibility

Enhances driving visibility, safety and comfort

Cleans

Improves windshield cleaning

Multiple Sizes

Available in 16.9oz and 10 oz sizes

Information

Size US Item # CAN Item # SDS Doc
16.9 oz 11806D N/A |US
10 oz 11314 N/A |US

Directions

  • 11806D - 16.9 oz
    • Add 4 fluid ounces to treat 1 full gallon of plain water or washer fluid in washer tank
  • 11314 - 10 oz
    • Add 4 fluid ounces to treat 1 full gallon of plain water or washer fluid in washer tank

What People Are Saying

Overall rating based on 50 reviews

Very useful for the places where it rains a lot

May 05, 2021

I really liked product, for someone who has screeching wiper noise and their wipers aren't smooth, this is the product. Also at high speed , it provides clarity

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Size: 16.9 oz
- Arpit Rai

Buy it

May 03, 2021

100% a must have if your windows get wet.

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Size: 16.9 oz
- Amazon Customer

Good Product

April 14, 2021

Works well .I have used it before .Shipped fast.

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Size: 16.9 oz
- MAX

Works

April 04, 2021

Cheaper and bigger then what you get at the local auto parts, could just buy a gallon of water or distilled and put the 4oz in it and pour in like I was told to do, but I was out and just used 4oz and tap water for now and cleans the window and replace water like it should

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Size: 16.9 oz
- Diezel152

Good stuff

March 27, 2021

The kind I

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Size: 16.9 oz
- Stephen M. Spraitz

I will always apply this

March 26, 2021

Great to get water off your wind shield. Easy to apply, last long enough, and give more visibility while in the rain.

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Size: 16.9 oz
- R Y.

Go with the wiper fluid, not this

March 26, 2021

For some reason this stuff just made my windshield worse. Like it made streaks and when the sun was out it was hard to even see. Didn't notice it bead up the rain at all. I got the rainx windshield wiper fluid and that works way better.

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Size: 16.9 oz
- Amazon Customer

WARNING DANGEROUS

March 25, 2021

I love water wicking products that work.It's almost pleasurable to drive in the rain.That's not what this product is.I followed all the directions and the product coated my windshield with an almost wax like layer that is impossible to see through.Very dangerous to drive with.After several days of dry weather after first use the window has large waxy areas that obstruct the most important part of the window.Very unhappy with this product.Cannot recommend.

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Size: 16.9 oz
- Gus

It Works!

March 24, 2021

Works as advertised. Thank you Shell Oil Co for a great product!

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Size: 16.9 oz
- Sara

I love Rain-X, but not this

March 21, 2021

While I love the original Rain-X that you apply directly to the glass, this product is horrible.My wife bought this and used it in her brand new 2021. It left a oily white residue everywhere-- the windshield, the paint, everywhere.I ended up buying a $20 pump to remove it from her windshield washer reservoir.Don't try and shortcut with this product. Just use the original.

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Size: 16.9 oz
- Mr. Tim

Great product

March 13, 2021

Add as much or as little as you'd like

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Size: 16.9 oz
- Tierra Crawford

works great.

March 04, 2021

i love to watch the water roll off.

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Size: 16.9 oz
- xl747

Definitely worth buying

March 03, 2021

Great stuff for the price! Beads rain off very well!

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Size: 16.9 oz
- Nick

Water just runs off now don't even need the wipers when moving.

March 02, 2021

Water just runs off now don't even need the wipers when moving.

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Size: 16.9 oz
- Amazon Customer

Leaves Stains

March 01, 2021

The product was amazons best seller so I thought it would be amazing. I should have known at that price the quality would greatly suffer. It leaves stains on my car’s windshield.

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Size: 16.9 oz
- TL

Will not buy again

February 25, 2021

It left a film on the window that made it blurry when using the wiper blades while raining. There were also 2 big cloudy spots where the fluid hits the window. Cleaning the window several times did not remove it we had to use an engine degreaser to get it off.

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Size: 16.9 oz
- Eric/Sam

Great product

February 18, 2021

I’ve used this stuff for 20 years and it is amazing.

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Size: 16.9 oz
- pamela fitzgerald

Nada

February 05, 2021

Your browser does not support HTML5 video. Todo está tirado párese q ordene basura

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Size: 16.9 oz
- Pablo

Works great

February 03, 2021

This stuff really helps

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Size: 16.9 oz
- Amazon Customer

No Streaks

February 02, 2021

You know what? This Rain-X Washer Fluid Additive is fantastic! I never knew that Rain- X made an additive. I think it's excellent because for around the same price as traditional washer fluid, you can make double/triple the amount using just 4oz of this additive and a gallon of water. The rain really does bead right off. This is definitely my new go-to for washer fluid.

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Size: 16.9 oz
- MD20

Rain-X is great

January 18, 2021

My dad always uses Rain-X products which is why I also use them. This was my 1st time using the additive. I currently use the all season Rain-X wiper fluid. So with this additive I did notice the windshield was clearer or cleaner. Also repeals the rain, beads up and rolls up the windshield. This one bottle has 3-4 uses depending on how much is used. After using this I told my dad about it and he's been using it too. Lol

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Size: 16.9 oz
- Jenn

Amazing!

January 16, 2021

This stuff works so well. Rain X has exceeded my expectations. My visibility through my windshield has never been clearer! The rain just beads off the windshield. I'm able to see so much better than I could before. We recently had a lot of rain and I did not have to worry about the droplets on my windshield because they would just roll right down or blow off. I can't believe the difference it makes having this and I will be a user from now on.

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Size: 16.9 oz
- Meghank09

Water Beads Well!

January 16, 2021

This washer fluid additive works well on a rainy day. It is too bad we have not had much snow around here this winter to really put it to the test. However, after using this fluid, I noticed that the rain drops bead nicely on the windshield and fall away. The solution mixes easy with your standard washer fluid. It did not have a chemical smell to it either. I did not try it with water alone because I never use water as washer fluid for fear it will freeze in the winter. I suspect that the rain drops would still bead when using water alone but the dirt in the windshield may remain or be smeared. You only need four ounces of Rain-X per gallon of windshield fluid. One bottle of the Rain-X solution will last you approximately four treatments, which is a great deal. I also want to mention that I mixed the Rain-X with cheap washer fluid and it worked well so I would not spend money on expensive washer fluid. I think the Rain-X additive elevates the washer fluid. Hopefully, when we do get our first snowfall, I will find my windshield just as easy to clean.

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Size: 16.9 oz
- Krys10

Bye bye rain

January 15, 2021

This stuff is awesome. I can see easily when it rains. It just beads up and goes away which I really like. Plus it is really easy to use, all you have to do is pour it in and it is ready to go. All you have to do is make sure you have the correct washer fluid in. I love it.

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Size: 16.9 oz
- HHBR

great product

January 15, 2021

I received the Rain-x washer fluid additive. I absolutely love all Rain-x products. I have a truck with horrible windshield wipers. I poured this into the washer fluid and it made an incredible difference in the clarity of the windshield while it was in the rain. Not long after I added the fluid, my windshield wipers stopped working completely. I had the fluid additive in the washer tank and I coated the windshield with the regular Rain-x and I was able to drive through the one of the worst rainstorms with no worries about my wipers working at all. The rain just glided right off the windshield in big droplets. Its more effective the faster you go. The droplets are big so clarity is still good but the wind hitting them helps roll them right off the windshield. It was very easy to add to my washer fluid. Just pour it in (4f; oz per gallon ) and then use your inside controls to spray it on the windshield when needed. This has also helped clean the grime, bugs and other tough and hard to remove gross stuff off my windshield. It pretty much is a multi purpose tool that does the hard work for you

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Size: 16.9 oz
- Kris

Great addition to my windshield fluid

January 15, 2021

This product works very well in the rain. I just added the recommended dose to my windshield washer fluid which has prevented the rain from beading up and allows it to fly off the windshield which creates better visibility. It has rained a couple of times since adding to my washer fluid and I am very pleased with this product and would get it again.

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Size: 16.9 oz
- MomofBoys

Easy to use- great results

January 13, 2021

I have loved rain x for years, and this product was no exception. I just followed the instructions, poured only the recommended amount in my washer reservoir and saw immediate, clear results. It even has a little measuring tool on the side to see how many ounces you pour in. I did the wiper self clean, and instantly had crisp, clear windshield!

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Size: 16.9 oz
- Teachteacha

Good

January 11, 2021

Works perfectly in the rain. The rain slides off making it easy to drive in rainstorm. Doesn't leave streaks definitely recommend it to anyone A must have for your car

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Size: 16.9 oz
- jls8207

Washed fluid

January 11, 2021

This Rain-X washer fluid was great. I have always loved the Rain-X line of product and this product did disappoint. The instructions on how to use it was simple and doing it was just as easy. It helped clean my windshield easily and the rain after just flew off.

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Size: 16.9 oz
- shoptilyoudrop

Works!

January 11, 2021

I love this rain X washer fluid additive! I already use rain X on my windshield but this just goes that extra mile by having the additive in my washer tank! Small price to pay for being able to see clearly!

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Size: 16.9 oz
- KristaLynn

Great stuff, I use it on my solar panels to shed dust, and snow in the winter.

January 10, 2021

Easy to apply I mix it in a sprayer and then squeegee it off the PV panels. It works wonders!

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Size: 16.9 oz
- C. Kern

Favorite washer fluid!

January 10, 2021

I love this washer fluid additive! Easy to use and beads of rain from my car windshield! I definitely recommend this product. It makes such a difference!

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Size: 16.9 oz
- MoonPearl

Will always use it

January 09, 2021

I have never used this before and will always use it from now on. More expensive than what I used to use but well worth the money. The windshield has never come up so clean. Have heard that a film could build up but I haven't had any problems yet.

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Size: 16.9 oz
- JoCoop518

Water beads off, a must have in my washer fluid

January 08, 2021

The Rain-X washer fluid additive is very easy to add to the washer tank. It only takes 4 oz. of the fluid additive per gallon of washer solution. All I have to do is push on the lever in my vehicle to wash the windshield and it cleans it with the washer solution and Rain-X additive. I am able to see more clearly out the windshield and when it rains which it did just yesterday the rain beads off. It improves my ability to see in bad weather and I don't have to apply it myself like the other version. It is applied every time I use my washer fluid which is much more convenient and doesn't take much time at all.

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Size: 16.9 oz
-

Easy to ise

January 07, 2021

This was real simple to use. You just add the amount listed on the bottle to a gallon of washer fluid and you're done. I have used Rain-X before that your wipe onto your window but this makes it much easier. It repels water but I do notice if you have to use your wiper, it leaves a brief (like only a second) cloudy streak, which it also did when I previously used the wipe on Rain-X. I tried to get a picture of the water beading on the window to show but I just couldn't get a good picture. The bottle says to keep it from freezing, but I assume (I hope) it's ok to mix it in a freezing climate. Haven't had a chance to see how it'll work in heavy rain.

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Size: 16.9 oz
- Esailor20

Easy and works

January 06, 2021

The Rain-X Additive was very easy to add to my windshield washer fluid. Once I was able to wash my windows, they were quite clean. The rain does seem to whish away after it was added.

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Size: 16.9 oz
- Megan

Very helpful

January 05, 2021

Product arrived well packaged and in good condition. I have always been a fan of rain-x products, and this one did not disappoint. It makes the rain bead up and clear off of your windshield. It makes it so much easier to see while driving in heavy rain.

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Size: 16.9 oz
- wineshr2234

You can try it.

January 02, 2021

Just started using this product, I like it, so far , really cleans the glass. Not too bad, I liked it more than other things that I have tried. This works quite well and is much easier than applying the original stuff by hand. Doesn't work as well as the pre-mixed rainx fluid, but it's nice to be able to add to any fluid that you have on hand.

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Size: 16.9 oz
- Valeria

Best washer fluid I have ever tried

January 02, 2021

I recieved the Rain x washer fluid additive a few weeks ago. Let me start by saying most the time I have only used just your regular cheap washer fluid thinking they was all the same but boy was I wrong. This stuff is amazing i drove for the first time in the rain yesturday after adding this rain x washer additive and it made such a huge difference it definitely does as it says the rain drops just flew right of and with no greasy residue left behind. I can not race enough about this product I'm definitely from now on a life long customer and i would recommend it to anyone it's that amazing.

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Size: 16.9 oz
- Talya

Impressed!

January 01, 2021

I was skeptical at first but after driving in the rain and using this product it really does work. It repels water effortlessly. I added 4 oz for a gallon of washer fluid. It beaded perfectly. The only complaint I have is my lid leaks so when I am squeezing it to add to the gallon of fluid it was spraying out the side. Overall I would definitely recommend. It does an excellent job.

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Size: 16.9 oz
- Samantha

Its OK....

January 01, 2021

Seems like a good idea and alternative to the original Rain-X wipe it on, and remove it product. This does repel the rain BUT be aware of a few hiccups. When you put on your windshield washer for the first few wipes you will get a white smeary looking haze on your windshield. After a few wipes it will go away, but this can be concerning the first time you do it - especially on a dark road in the rain. Second issue is sometimes you will get some gray spots on the paint, especially on the roof. Apparently the process of repelling the water on the windshield will mean the fluid will carry any dirt to the painted areas. The spots can be removed when washing, but it does take away from the look of your car. So, it does repel water, but it has its draw backs that the original Rain-X doesn't have. I'll stick with the original formula....

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Size: 16.9 oz
- ThrftyShopper

Clear windshield

January 01, 2021

It has a squirt tip so easy to pour in to windshield wiper fluid tank and no messes! It helps disperse the water nicely so you have better vision out the windshield. It makes snow removal easier as well when scraping the windows. There is enough in the bottle for several refills and will probably last at least a year! Works great. Good quality product!

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Size: 16.9 oz
- Rebecca

Works...

December 31, 2020

I've always used this chicago winter is brutal...this thing works ...I apply it in the window directly first then put some in my washer fluid...stays for weeks if you directly apply it..but there are other water repellent that are meant for direct application stays for 6montha to a year

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Size: 16.9 oz
- spirocz34

Works great

December 31, 2020

This was very easy to use. You just mix it with water. If you live somewhere cold you just mix it with the washer fluid that doesn't freeze. It really helps the rain to bead off of your windshield. Unless it's pouring rain you really don't even need to use your windshield wipers.

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Size: 16.9 oz
- Kathy

Noticably better than regular washer fluid

December 31, 2020

I am a food delivery driver and I often work when it's dark out and during winter it snows a lot. The day I received the Rain-X in the mail I immediately Put 1/3 of the bottle it my newly filled washer fluid tank. I sprayed it a few times and noticed the difference right away. My windshield had been quite dirty from a snow storm the day before that I had barely scrapped off with a gas station squeegee. These was a clear line showing where the wipers has cleaned my windshield with the Rain-X vs. the gas station squeegee around the edges that the wipers don't get. My windshield was crystal clear while the rest of my car was dirty. I continued to spray the fluid during the night while I was out driving and it continued to snow. I was able to see apartment building numbers more easily than ever. The only thing I'm not super confident on is that the bottle says 1/3 should last with a full bottle of windshield washer fluid. I feel like I've noticed a difference and that my windshield isn't as clear the more I've used that initial 1/3 part. Maybe that's because the snow has been so heavy lately. I might try refilling or using more since it does work well, just not as long as stated maybe. Also store the bottle right side up, do not allow to lay down. Mine fell over in the truck and leaked a little. Would recommend!

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Size: 16.9 oz
- CoconutSweetie

Works wonders

December 31, 2020

Normally I just use the regular cheap blue stuff (probably like most others). Never thought there would be a difference. Let me tell you this stuff here has changed my mind forever! This stuff works so great! You use it once and it lasts forever. I only needed to add a tiny bit since it's concentrated and now I'll never go back to the cheap stuff! So worth the extra price it normally is!

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Size: 16.9 oz
- Nicole

Better than wipers *

December 31, 2020

You don't even have to use your wipers as much when it's raining. Love this stuff. So easy to do as well. Just add to your washer fluid and spray!!! So easy and worth it.

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Size: 16.9 oz
- Mistyda84

Water beads away

December 31, 2020

It has started snowing where I live, and also rain/snow mix frequently. I added some of this to the washer fluid in my vehicle and it helped so much. My windshield wipers are fairly new, but sometimes the water just doesn't want to completely wipe away. This Rain-X washer fluid additive creates a protective layer on my windshield that makes the rsin and melty snow ball up and roll right off the sides. It is easy to use. Make sure your normal washer fluid is pretty full, and add about a quarter of this additive bottle. The bottle says 4 oz for each one gallon of washer solution, and there are four uses in each Rain-X bottle. I was concerned that it might leave a film on my windshield, but it was perfectly clear after using. I did let the additive set for a few minutes using it. I would use it again!

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Size: 16.9 oz
- MichiganMommy

Helpful additive

December 31, 2020

This additive got it's first test yesterday after the first big snow storm of the season. It performed well in the cold conditions. Our windshield was a little better than normal while driving. It did seem to come somewhat more clean when the wipers were used. This isn't a magic product but it helps. In the country, car windows need all the help they can get.

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Size: 16.9 oz
- bookworm76

Pleasantly Surprised

December 31, 2020

I love the Rain X brand and have always wanted To try the washer fluid additive. I have never tried any washer fluid additive but I figured being from the Rain X brand, it had to be good. I was actually surprised! It goes great with my Rain X windshield wipers. It was simple to add and upon usage it actually worked! It's a beautiful streak-free shine. You would think I had installed a new windshield. I love it! I would definitely recommend this product to anyone!!

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Size: 16.9 oz
- MommaMagnolia

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