10 Best Windshield Washer Fluids of 2021

Jerry Wilson
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In today’s world, windshield washer fluids have become very complex premium liquids even though the basic ingredients of the fluid are quite simple.

I’ve scrutinised a great deal of the available windshield washer fluids over the years and I’ve discovered that the vast majority of them come from the same standardised base formulas which are made from ethanol. The other ingredients used to improve these fluid’s performance include surfactants, phosphates, and dispersants.

This isn’t such a bad thing because the truth is that you’ll never notice any difference between the premium and basic windshield washer fluids.

Just make sure that whatever you choose, it’s made from ethanol and not citrus based chemicals.

If you’re thinking of trying a new fluid, check out these 10 best windshield washer fluids of the year.

NameCategoryProduct
nextzett 92100815 Kristall Klar Washer Fluid 1:200 ConcentrateBest Overallnextzett 92100815 Kristall Klar Washer Fluid 1:200 Concentrate
Rain-X White RX11806D Washer Fluid Additive-16.9 fl. ozBudget PickRain-X White RX11806D Washer Fluid Additive-16.9 fl. oz
Aqua Charge Windshield Washer Ultra ConcentrateUpgrade PickAqua Charge Windshield Washer Ultra Concentrate

1. nextzett 92100815 Kristall Klar Washer Fluid 1:200 Concentrate

Our rating: 9 / 10

nextzett 92100815 Kristall Klar Washer Fluid 1:200 Concentrate

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Pros:

  • Works great
  • Easy to dilute
  • Works even when diluted
  • Great price
  • Easy to clean glass without streaks
  • Smells like apples

Cons:

  • Very small container
  • Can be difficult to pour into reservoir without spilling
  • Can leave temporary streaks
  • Some users report it being about as effective as water

The nextzett klar windshield fluid is coming in at number one on my best windshield wiper fluid list. This wiper fluid is receiving near perfect reviews and has an average user rating of 4.9 out of 5 stars. What makes this windshield fluid stand out from the rest is that nextzett really took their time in researching what their customers want. They have the number one silicone-free washer fluid in the market today. And with over 23 fabulous reviews and an average rating of 4.9 stars.

The nextzett company is really listening to its customers and is bringing the top washer fluid to the market. Over 23 reviews for a windshield washer fluid is a great testament to the product itself. The nextzett windshield fluid is receiving an average rating of 4.9 out of 5 stars.

The nextzett transparent formula cleans your windshields while protecting your vehicle's paint and avoiding streaks and smears.

2. Prestone AS250 De-Icer Windshield Washer Fluid

Our rating: 9 / 10

Prestone AS250 De-Icer Windshield Washer Fluid

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Pros:

  • Works in any temperature
  • Bright red appearance
  • Odorless

The Prestone De-Icer is a freezing cold windshield washer fluid. It de-ices your windshield in any temperature, and the low-temperature formula cleans ice and foggy windshields quickly and helps de-ice without freezing. This fluid is safe on all surfaces including plastic, rubber, paint and windshields.

The Prestone De-Icer features a unique red appearance, which really brings attention to your windshield washer fluid. The red appearance is great to have in your vehicle during the colder months.

It was produced under the GreenCommitment 5R sustainability program. This ensures that no carcinogens, ozone-depleting ingredients or harmful volatile organic compounds are added in the process of making this fluid.

3. Prestone AS657 Bug Wash Windshield Washer Fluid

Our rating: 9 / 10

Prestone AS657 Bug Wash Windshield Washer Fluid

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Pros:

  • Available at local retailers and Amazon
  • Highly durable and does not block the washer spray nozzles
  • Safe on glass and plastic
  • Affordable

Cons:

  • Can leave tiny droplets on glass if not applied correctly
  • Scent can be overpowering to sensitive drivers

The Prestone AS657 Bug Wash windshield washer fluid is the best windshield wash fluid if you have a car. It comes in a 128 Ounce jug, which is the perfect size for most cars. The fluid is an excellent value for its price as it is effective and long lasting.

Because of its effectiveness, this washer fluid kills bugs and cleans your windshield when misted. The wash fluid also stays well for outdoor use. You should still use soap and water to clean bugs on your windshield, but if your washer fluid is empty or weak, you can still use it until a full wash.

We also like that it does not clog your spray nozzles since it is not acidic. Because of that, it is safer on glass and plastic than many of its competitors that use acidic components. The hose or spray nozzle will not swell or deteriorate if you over-use the fluid like many of its competitors.

4. BMW Windshield Washer Concentrate

Our rating: 9 / 10

BMW Windshield Washer Concentrate

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Many of us have BMWs, and we know one of the best ways to protect it is to keep it clean. BMW Windshield Washer Concentrate is perfect for cleaning your windshield, and it’s an ingredient in the BMW Original Washer Concentrate.

Simply fill the reservoir with this product, and use around once a month to prevent the grime and buildup that occurs on the exterior, which will make every road trip more pleasurable.

5. Mercedes-Benz Summerfit Windshield Washer Fluid Concentrate

Our rating: 8 / 10

Mercedes-Benz Summerfit Windshield Washer Fluid Concentrate

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Pros:

  • Prevents unpleasant smells
  • Doesn’t dry out easily

The Mercedes-Benz Summerfit Windshield Washer Fluid Concentrate/Chipsol-Ject is admittedly pricey, but according to some reviewers, it's worth the extra spent buck. It's a chemical-free fluid that helps you keep tabs on your window's cleanliness.

The fluid is safe against the windshield, etching, paint, and the rubber window seals. The Mercedes-Benz Summerfit Windshield Washer Fluid Concentrate comes in 500-ml bottle and can last you for close to three months.

Customers have appreciated the fact that the Mercedes-Benz Summerfit Windshield Washer Fluid Concentrate doesn't give you that funny smell. It has a vanilla scent.

6. Sonax

Our rating: 8 / 10

Sonax

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Pros:

  • Simple cleaning solution
  • 1:1 mix ratio
  • Removes dirt without degreaser

Cons:

  • Needs to be shaken often
  • Need to dilute before use
  • Contains a scent

Does what it says it does. It is a super concentrated windshield washer fluid. So it says to use a 1:100 ratio with clear distilled water. I did. It worked well.

It is not the best at cleaning, but it is not the worst either. It is just like any other cleaner. It cleans off your wiper blades and leaves a nice residue to help lubricate. I did not notice any abnormal cleaning issues during my use of it though.

It works well and I would recommend it to anybody looking for a cheap solution. It's not the most amazing product but it does get the job done.

7. Aqua Charge Windshield Washer Ultra Concentrate

Our rating: 7 / 10

Aqua Charge Windshield Washer Ultra Concentrate

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Pros:

  • Very affordable
  • Easy to use
  • Versatile

Looking for a good windshield washer fluid? This one’s got all the bases covered, and it can even last you a while if you use it at the right ratio.

The bottle actually provides more than 1 quart of windshield washer fluid, so it’ll last you for quite some time. The bottle really isn’t that expensive, especially when you consider how much fluid you get. You’re basically getting two and a half quarts of fluid for the price of one.

The best part is that you can actually use this fluid for all sorts of non-windshield-wiper tasks. It’s great in the garage or in the shop. All you have to do is buy some industrial-strength sprayer bottles, which will run you a couple of bucks per bottle.

8. Rain-X White RX11806D Washer Fluid Additive-16.9 fl. oz

Our rating: 7 / 10

Rain-X White RX11806D Washer Fluid Additive-16.9 fl. oz

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Pros:

  • Has been used successfully for decades.
  • Keeps the windshield streak-free, even in extreme weather conditions.

Cons:

  • Not suitable for all climates.

Rain-X Rain Repellent is the number one windshield washer fluid on the market, and for decades it has been a favorite of US car enthusiasts. It is a premium solution for keeping your windshield streak-free using a unique formula.

Rain-X is particularly popular in the United States, as it reflects the extreme heat and the frequent car washes, which is why you’re better off installing a separate water tank instead of using your windshield heater.

It also clear away dirt and keeps it away, protecting your windshield from scratches and cracks and ice-free during all seasons.

Frequently Asked Questions (FAQ)

Does it matter what windshield wiper fluid I use?

The best windshield washer fluid matches the best windshield washer fluid. Fully synthetic washer fluid has been shown to provide longer lasting clarity than other options, but it is likely the most expensive option for a single washer fluid.

Another option is to use a 50/50 mix of water and antifreeze. This will give you the consistency and anti-icer qualities you are looking for.

Another, less expensive option is to buy a washer fluid that is even cheaper than plain water, but still will help freeze up your windshield for a short time. If this is your budget, it might be time for you to consider the use of an antifreeze/mineral spirits mix that can be applied directly to the windshield for similar freezing results.

Can I mix different windshield washer fluids?

The short answer is yes, you can mix different windshield washer fluids to create your own unique concoction. But there are some important things you should know before you do. First, if you mix a concentrated, biodegradable, phosphate-free washer fluid with a plain washer fluid then you'll have a higher pH in your washer fluid than you would have if you'd used the same volume of each washer fluid by itself. This is because the concentrated washer fluid has a higher pH than the plain washer fluid.

Is Rainx washer fluid good?

Absolutely not.

Rain-X is a great product with many product lines- but NOT their washer fluid. While the idea of the product is simple and perfectly works in regards to windshield wiper blades, it simply doesn’t work as advertised with the fluid.

As most washer fluids are a mixture of water, ethanol, and PEA (for foam), Rain-X works by blocking the PEA in the washer fluid from forming the foam.

While this might be an effective windshield treatment, it doesn’t work as a washer fluid. The PEA that’s usually in the washer fluid is an important part of the cleaning process, as it removes debris from the windshield and helps to keep the windshield cleaner in general.

What windshield washer fluid has the most methanol?

We’re pretty sure you’re here for the science stuff, not the marketing, so we’re going to save you some time. The only thing you really need to know is that the washer fluid with the most methanol is the thickest one. We gave that one 5 stars because your goal is as clean a windshield as possible, so you want the thickest one.

You might also want to choose a winter blend because it will be more effective at removing ice and snow. That’s going to be the subject of a next article, though, which we’ll post as soon as possible.

Conclusion

We dug in deep to find a liquid that was safe for a variety of surfaces, would cut through grime easily, and could be wiped off without special treatment. We found just the one … the Guzzler Goo! Both the paste and the flasks of paste were easy to apply, would last in the bottle for some time, and stayed where we put it.

Our Recommendation

NameCategoryProduct
nextzett 92100815 Kristall Klar Washer Fluid 1:200 ConcentrateBest Overallnextzett 92100815 Kristall Klar Washer Fluid 1:200 Concentrate
Rain-X White RX11806D Washer Fluid Additive-16.9 fl. ozBudget PickRain-X White RX11806D Washer Fluid Additive-16.9 fl. oz
Aqua Charge Windshield Washer Ultra ConcentrateUpgrade PickAqua Charge Windshield Washer Ultra Concentrate