When it comes to taking care of your pressure washer during the winter months, using the right antifreeze is crucial. Antifreeze helps to prevent damage to the pump, fittings, and hose by preventing freezing and corrosion. But with so many options available, it can be difficult to find the best antifreeze for your pressure washer.

One of the top options for antifreeze is propylene glycol. This type of antifreeze is non-toxic, non-flammable, and safe for use in pressure washers. It has a high boiling point and a low freezing point, making it ideal for extreme temperatures. It also provides excellent protection against corrosion and scale buildup, extending the lifespan of your pressure washer.

Another great option is RV antifreeze. While this type of antifreeze is primarily used for protecting the plumbing systems in recreational vehicles, it can also be used in pressure washers. RV antifreeze is non-toxic and safe for use on all surfaces. It is designed to withstand freezing temperatures and provides reliable protection for your pressure washer during the winter months.

Finally, some pressure washer manufacturers recommend using their own brand of antifreeze. These antifreeze options are specifically formulated for use with their pressure washers and are guaranteed to provide the best possible protection. While they may be more expensive than other options, using the manufacturer-recommended antifreeze ensures that you are using the right product for your pressure washer.

Overall, choosing the best antifreeze for your pressure washer depends on your specific needs and preferences. Whether you opt for propylene glycol, RV antifreeze, or a manufacturer-recommended option, investing in a high-quality antifreeze will help to keep your pressure washer running smoothly during the winter months and extend its lifespan.

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Top 5 Antifreeze for Pressure Washers

When it comes to maintaining your pressure washer and keeping it running smoothly, using antifreeze is essential, especially during the colder months. Antifreeze helps protect your pressure washer’s engine from freezing and prevents any damage that can occur from cold weather conditions. Here is a list of the top 5 antifreeze options for pressure washers:

1. Ethylene Glycol Antifreeze

Ethylene Glycol is a popular choice for many pressure washer owners due to its low cost and wide availability. It provides excellent protection against freezing temperatures and is suitable for most pressure washer models. However, it is toxic and requires proper handling and disposal.

2. Propylene Glycol Antifreeze

Propylene Glycol is a non-toxic alternative to Ethylene Glycol and is often preferred by those who prioritize safety. It offers good freeze protection and is environmentally friendly. While it may be slightly more expensive, its safe handling makes it an excellent choice for pressure washer owners.

3. RV Antifreeze

RV antifreeze is another option that works well for pressure washers. It is designed to protect the plumbing system of recreational vehicles from freezing temperatures and can offer the same level of protection to your pressure washer. Make sure to choose an RV antifreeze specifically designed for use in pressure washers.

4. Windshield Washer Fluid

Windshield washer fluid can also be used as an antifreeze for pressure washers. It is readily available and offers good freeze protection. However, be sure to choose a windshield washer fluid that does not contain additives that may be harmful to your pressure washer’s engine.

5. Marine Antifreeze

Marine antifreeze is designed to protect the engine and plumbing systems of boats and can also be an option for pressure washer owners. It provides excellent freeze protection and is resistant to corrosion. Look for a marine antifreeze that is safe for use in pressure washers.

When selecting the best antifreeze for your pressure washer, consider factors such as compatibility with your model, freeze protection level, toxicity, and environmental impact. Regularly checking and maintaining your pressure washer’s antifreeze can ensure optimal performance and protect your investment for years to come.

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Importance of Antifreeze for Pressure Washers

Antifreeze plays a crucial role in maintaining the performance and longevity of pressure washers. It is especially important during the colder months when freezing temperatures can cause serious damage to the pump and other components of the machine.

Preventing Freezing: The primary function of antifreeze is to prevent freezing of the water that is used in pressure washers. When water freezes, it expands and can lead to cracked or damaged internal components. By adding antifreeze to the water, it lowers the freezing point and ensures that the machine can operate smoothly even in cold weather.

Protecting the Pump: The pump is one of the most critical parts of a pressure washer, and it can be susceptible to damage if the water inside freezes. Antifreeze helps to protect the pump by preventing freezing and ensuring that it continues to function properly. This not only helps to maintain the performance of the pressure washer but also extends the lifespan of the pump.

Preventing Corrosion: In addition to preventing freezing, some antifreeze solutions also contain corrosion inhibitors. These inhibitors help to protect the internal components of the pressure washer, such as the pump and hoses, from corrosion and rust. This can significantly extend the lifespan of the machine and reduce the need for expensive repairs or replacements.

Proper Dilution: It is important to note that antifreeze should be properly diluted according to the manufacturer’s instructions. Adding too much antifreeze can reduce the performance of the pressure washer and may even cause damage. On the other hand, insufficient antifreeze may not provide adequate protection against freezing. It is crucial to follow the recommended dilution ratios to ensure optimal performance and protection.

In conclusion, antifreeze is an essential component for pressure washers, particularly in colder climates. It prevents freezing, protects the pump, and helps prevent corrosion. By following the proper dilution guidelines, pressure washer owners can ensure that their machines operate smoothly and efficiently year-round.

Factors to Consider When Choosing the Best Antifreeze

When it comes to choosing the best antifreeze for a pressure washer, there are several factors that you should consider. These factors can help you ensure that you are selecting the right product for your specific needs and preferences.

Type of Antifreeze: One of the main factors to consider is the type of antifreeze you need for your pressure washer. There are different types available, including ethylene glycol and propylene glycol. Ethylene glycol is more common and less expensive, but it is toxic and not suitable for areas where there is a risk of contamination. Propylene glycol, on the other hand, is non-toxic and safe for use in areas where contamination may be a concern.

Freeze Protection: Another important factor to consider is the freeze protection offered by the antifreeze. Different antifreeze solutions have different freeze points, so it’s crucial to choose one that provides adequate protection for your specific climate. Make sure to check the product specifications and select an antifreeze that can withstand the lowest temperatures in your area.

Corrosion Protection: Corrosion protection is another crucial factor to consider when choosing antifreeze for your pressure washer. Look for an antifreeze that contains corrosion inhibitors to prevent internal rusting and damage to the pressure washer’s components. This will help prolong the lifespan of your equipment and ensure optimal performance.

Compatibility: It is essential to choose an antifreeze that is compatible with your pressure washer. Check the manufacturer’s recommendations or consult the owner’s manual to determine the appropriate antifreeze for your particular model. Using an incompatible antifreeze can lead to damage to the pressure washer and potentially void the warranty.

Price and Packaging: Finally, consider the price and packaging of the antifreeze. Compare prices from different brands to ensure you’re getting the best value for your money. Additionally, consider the size and packaging of the antifreeze, as this can affect how easy it is to handle and store.

By taking these factors into account, you can make an informed decision and choose the best antifreeze for your pressure washer that offers the necessary protection and performance.

Best Antifreeze Brands in the Market

When it comes to choosing the best antifreeze for your pressure washer, it’s important to consider reliable brands that offer high-quality products. Here are some of the best antifreeze brands in the market:

  • Prestone: Prestone is a renowned brand known for its range of antifreeze products. Their antifreeze is formulated with corrosion inhibitors to protect your pressure washer’s engine from damage caused by freezing temperatures.
  • Zerex: Zerex is another well-respected brand that offers antifreeze solutions for various applications, including pressure washers. Their antifreeze is designed to provide long-lasting protection against extreme cold and inhibit the formation of rust and other corrosive elements.
  • Shell: Shell is a trusted name in the lubricant industry and offers antifreeze products that are specially formulated to provide optimal protection against freeze-ups and corrosion. Their antifreeze is compatible with a wide range of pressure washers and helps to extend the life of the engine.
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These brands have a solid reputation in the market and their antifreeze products have been tested and proven to effectively protect pressure washer engines in freezing temperatures. It’s always recommended to choose antifreeze products from these reputable brands to ensure the best performance and longevity of your pressure washer.

How to Properly Use Antifreeze in Your Pressure Washer

Using antifreeze in your pressure washer during the winter months is essential to prevent freezing and damage to your equipment. Here are some steps to properly use antifreeze in your pressure washer:

  1. Prepare your pressure washer for storage: Before using antifreeze, make sure to thoroughly clean your pressure washer and remove any dirt or debris. Drain all water from the pump, hoses, and wand to prevent freezing.
  2. Choose the right antifreeze: Select an antifreeze specifically designed for pressure washers. Check the product label to ensure it is suitable for your pressure washer model and the temperatures in your area.
  3. Mix the antifreeze: Follow the instructions on the antifreeze bottle to mix it with water in the appropriate ratio. This will depend on the concentration of antifreeze recommended for your pressure washer and the outside temperatures.
  4. Prime the pump: Once the antifreeze solution is prepared, connect a short hose to the inlet of the pump. Place the other end of the hose into the container holding the antifreeze solution. Turn on the pressure washer and allow the pump to draw the antifreeze into the system.
  5. Run the pressure washer briefly: Let the pressure washer run for a few minutes to ensure that the antifreeze is circulated throughout the system. This will help protect all components from freezing and corrosion.

Remember: Never use antifreeze that contains ethylene glycol in a pressure washer, as it can be harmful if ingested or come into contact with skin. Always use antifreeze specifically designed for pressure washers, and follow the manufacturer’s guidelines for safe and proper use.

By following these steps, you can properly use antifreeze in your pressure washer and protect it from freezing during the winter months. Taking the time to winterize your pressure washer will help extend its lifespan and ensure that it is ready for use when warmer weather returns.

10 Best Antifreeze For Pressure Washer

75FT Heated Water Hose for Rv, (5/8" ID) Hose Water Heater with Energy Saving Thermostat to Keep Water Running in Down to -45℉ Lead and BPA Free Designed for RV/Camper/Home/Garden

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  • Product Description: Anti-freezing water hose pipe, can be at a minimum of -40 ℃ to keep the water pipe does not freeze, water pipe and heating tape integrated design is more convenient to use, storage is more simple.
  • Product Parameters: flexible PVC water pipe, water pipe inner diameter of about 12.7mm (DN15), working pressure of 150PSI, pressure limit of 450 PSI, the maximum heating power of about 500W (water pipe temperature will gradually reduce the heating power) can quickly and effectively maintain the flow of water.
  • Safety and Energy Saving: BPA free, safer water, heating tape with leakage protector and temperature controller, safer and more energy-efficient use
  • Usage Scenario: Specially designed for RVs (can be directly connected to the RV faucet), and also suitable for garden water and family life water, in addition, the self-electric heat tape can also be used as a roof and ground snow melting in the winter, a multi-purpose.
  • Packing list:75FT RV heated water hose, raw material tape, 3/4'' threaded adapter, rubber washer, storage bag, total weight about 8.5kg.

TOPRING Long Hose Air Compressor Water Blow Out Adapter with integrated Pressure Gauge. RV Winterizing Kit with Male garden hose connector, Yelllow Hose

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  • SAVE YOUR PIPES FROM FREEZING: Flush water from RV, Camper, Boat, Garden Hose, Sprinklers, etc.
  • CONVENIENT and SAFE: Highly-flexible 60 inch RoHS-compliant Phthalate-free 3/8" air hose and 0-60 psi pressure gauge
  • ENVIRONMENTALLY SAFE ALTERNATIVE: No need for antifreeze solutions
  • OPERATE IN CONFINED SPACES: Control the supply of air with the compact shut-off valve
  • EASY CONNECTION: 1/4" INDUSTRIAL air quick-connect plug and 3/4" garden hose connector
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Kohree 15FT Heated Drinking Water Hose for RV, -40 ℉ Heated RV Fresh Water Hose 5/8", Heavy Duty Heated Water Hose for RV, Camper, Energy Saving Thermostat, No Leaks, Lead and BPA Free



  • 【Efficient Freeze Protection】Specifically designed to prevent freezing for winter camping, Kohree heated water hose features a smart self-regulating internal thermostat, which allows water to flow smoothly in temperatures down to -40°F.
  • 【Durable Construction, No Leaks】Both the Male and Female end of the RV water hose are made of pure aluminum material with a large rubber grip, which provides a good surface to grip to make secure connections without hurting your fingers. Quick-connect fittings. Leak-free inlet and outlet.
  • 【Drinking Water Safe】Our heated hose is made of environmentally friendly rubber. Certified CA65, BPA free, NO peculiar smell, won't leach harmful chemicals into your water. You can enjoy drinking water safely with Kohree RV heated hose!
  • 【Wide Applications】Designed to withstand extreme temperatures, preventing freezing, and ensuring a consistent water flow in winter. Kohree heated hose can be used in RV, camping, chicken coops, homes, gardens, or on trips, helping families get rid of water shortages in extreme cold weather conditions.
  • 【Easy to Use, Come with RV Accessories】 Includes male-to-male adapter to allow connection to the water supply on either end of the hose. TIPS: Should always be used with a GFCI-protected outlet, this will help with overheating due to a short circuit.

YESOON [30 Pack Reusable Freezer Food Storage Containers with Lids [26oz-40oz-70oz] Plastic Meal Prep Container Sets Bento Box BPA Free Freezer & Microwaveable & Dishwasher Safe

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Part Number YS-003
Model YS-003
Color Clear


What is antifreeze and why do I need it for my pressure washer?

Antifreeze is a fluid that is used to prevent freezing and corrosion in the pressure washer’s pump and water lines. It is necessary to use antifreeze in colder climates to protect the internal components of the pressure washer.

How do I choose the right type of antifreeze for my pressure washer?

You should always consult the owner’s manual of your pressure washer to find out the recommended type of antifreeze. Generally, a non-toxic antifreeze that is safe for use in potable water systems is suitable for pressure washers.

How much antifreeze should I use in my pressure washer?

The amount of antifreeze you need to use will depend on the capacity of your pressure washer’s water pump. Refer to the owner’s manual for the correct amount of antifreeze to use. Typically, a 50/50 mixture of antifreeze and water is recommended.

When should I use antifreeze in my pressure washer?

You should use antifreeze in your pressure washer whenever the temperature drops below freezing. It is important to flush out any remaining water from the pump and water lines before adding antifreeze to ensure proper protection.

What is the purpose of antifreeze in a pressure washer?

The purpose of antifreeze in a pressure washer is to protect the machine from freezing during colder temperatures. Antifreeze lowers the freezing point of the water or cleaning solution, preventing it from turning into ice and potentially damaging the internal components of the pressure washer.


In conclusion, properly using antifreeze in your pressure washer is essential for its long-term performance and longevity. By following the steps outlined in this article, you can ensure that your pressure washer’s engine and pump are protected during cold weather conditions. It is important to select the appropriate antifreeze for your specific pressure washer model and to follow the manufacturer’s instructions for adding it to the system. Remember to properly flush out the antifreeze before using the pressure washer again in warmer weather. Taking these precautionary measures will help to safeguard your pressure washer and prevent any potential damage caused by freezing temperatures.