Who makes windshield wiper fluid?

Industry players and brand landscape

• Brand-name fluids such as Rain-X and Prestone, which are widely marketed and distributed across many regions.


• Private-label or store-brand fluids sold under retailer branding (for example, Kirkland Signature at Costco, Great Value at Walmart, AutoZone’s store line, and other regional labels).


• OEM and service-chain suppliers that produce fluids sold through dealerships and automotive service centers.

What goes into windshield washer fluid

• Base solvents: water combined with a glycol or alcohol-based antifreeze component (such as methanol, ethanol, ethylene glycol, or propylene glycol) to prevent freezing and ensure smooth spraying in cold weather.


• Detergents and surfactants to lift and suspend dirt, grime, and bug residue from the windshield.


• Corrosion inhibitors and anti-foam agents to protect the washer system and ensure consistent spray quality.


• Colorings or fragrances in some formulations; some options are dye-free for a more neutral appearance and smell.


• Seasonal variants: winter blends emphasize stronger antifreeze performance, while summer or all-season formulas emphasize cleaning power with less or no antifreeze.

Where you’ll find windshield washer fluid and how it’s sold

• Retail and auto-parts chains carry a range of brands and private-label fluids to suit different climates and budgets.


• Private-label fluids are common in big-box retailers and warehouse clubs, often at lower price points than national brands.


• Dealerships and service centers may stock fluids sourced from automotive chemical suppliers for OEM-grade performance.

Key considerations when choosing windshield washer fluid

• Climate and season: winter formulations to prevent freezing; summer/all-season variants for cleaning efficiency without excessive antifreeze.


• Vehicle compatibility: ensure the fluid’s antifreeze level and detergents won’t damage seals or sensors in your washer system.


• Safety and regulations: methanol-containing fluids can be toxic if ingested or improperly handled; some regions promote methanol-free or glycol-based options.


• Economy and convenience: ready-to-use fluids versus concentrates requiring dilution; consider container size and price per gallon.

Summary

Who makes the best windshield washer fluid?

Here are five products we suggest.

• ShopPro -20 Degree Windshield Washer Fluid.
• Rain-X 2-In-1 -25 Degree Windshield Washer Fluid.
• BugOFF Summer Formula Windshield Washer Fluid.
• ShopPro +32 Degree Windshield Washer Fluid.
• Rain-X De-Icer Windshield Washer Fluid.

Does it matter what windshield washer fluid you use?

Yes, it matters what windshield washer fluid you use because different fluids are designed for different conditions, such as temperature and the presence of bugs or dirt. Using the correct type ensures better visibility and performance, for example, a de-icing fluid for winter or a bug remover for summer, while plain water can freeze or lead to mold. 
This video explains different types of windshield washer fluids and what they are used for: 25sSummit RacingYouTube · Mar 9, 2023
Types of windshield washer fluid

• All-Season: A standard option suitable for most weather conditions where extreme cold or heavy bug splatters are not a major issue. 
• Winter/De-Icer: Contains anti-freeze agents to prevent freezing in cold temperatures and to help melt ice and frost off the windshield. 
• Bug Remover: Formulated with strong cleaning agents to effectively remove bug splatters and other road grime. 

Why the right fluid matters

• Safety: Using the correct fluid is crucial for safety. For example, a winter fluid prevents freezing, which could block your view or damage your washer system, and a bug remover fluid helps maintain clear visibility when driving on highways. 
• Performance: Different fluids are designed to perform specific tasks, such as de-icing or removing bugs. Using the wrong one may not clean your windshield effectively. 
• Maintenance: Using plain water can be risky as it can freeze in cold weather and lead to mold growth in the washer system. 
• Efficiency: Mixing different types of fluids can diminish their effectiveness. For optimal performance, it is best to stick to one type of fluid. 

Is there different quality windshield washer fluid?

Yes, the type of windshield washer fluid you choose can make a difference, especially in extreme weather conditions. Winter fluids have a low freeze point to prevent freezing in cold temperatures, while summer formulas are formulated to remove bug residue, dirt, and road grime effectively.

Can you mix different brands of windshield washer fluid?

Yes, you can mix different brands of windshield washer fluid, but it's not recommended as it can reduce the effectiveness of the special features like water-beading or bug removal. Mixing fluids may also cause chemical reactions that could clog the spray nozzles or, in rare cases, lead to other issues. If you must mix them, it's best to stick to reputable brands and check the freezing points to ensure they are compatible.
 
This video explains what happens when you mix different colored windshield washer fluids: 35sMark's GarageYouTube · Feb 8, 2015
Potential risks of mixing

• Reduced effectiveness: Mixing fluids can dilute the special additives, making the cleaning solution less effective at, for example, removing bugs or preventing freezing. 
• Chemical reactions: Some fluids may contain different chemical ingredients. Mixing them can potentially lead to reactions that clog the spray nozzles or the washer fluid pump. 
• Streaking: Mixing fluids with water-beading additives (like Rain-X) can cause streaks on the windshield. 

How to mix safely (if necessary)

• Stick to reputable brands: Use products from well-known manufacturers to minimize the risk of chemical incompatibilities. 
• Avoid mixing special-function fluids: Do not mix fluids with special properties (like de-icing or bug-removal) with standard fluid unless you've confirmed compatibility, as this will dilute the special effects. 
• Check freezing points: If mixing winter fluids, verify that the freezing points of both fluids are compatible. Mixing fluids with very different freezing points could cause problems. 
• Drain old fluid: To prevent mixing, you can drain old fluid completely before adding new fluid. 

What to do if you have issues

• If you notice any issues like clogging or streaking after mixing, drain the tank and refill it with a single, reputable brand of fluid.
• In some cases, a clogged pump may require professional service.