The Best RV Antifreezes

The world of winter camping may not be easy. Although the cold season offers a winter wonderland as far as the eyes can see, your recreational vehicle might undergo issues because of the cold weather.

One of these issues is when an RV plumbing system freezes. Winterizing with the best RV antifreeze will help mitigate and perhaps even eliminate this concern.

But, what is a cheap RV antifreeze? If so, can it provide quality results? What are the qualities of the best antifreeze for motorhomes? Find the answers to those questions (and more) as you read through this article. You will also find excellent candidates that might become the perfect winterizing solution for your RV.

Best RV Antifreeze Reviews

1. SPLASH 619526 RV & Marine Antifreeze

To say that the SPLASH 619526 Antifreeze can protect camper plumbing systems from freezing might be an understatement.

While most anti-freezing solutions on the market promote flash protection of -50 degrees Fahrenheit, this one goes beyond that mark to protect water systems up to -225 degrees Fahrenheit. With that level of protection, I can have peace of mind, knowing that my RV’s plumbing system will not freeze when the vehicle is in the middle of a blizzard.

Also, the one-gallon contents allowed me to have some of the solution left after using it on my camper. So, I gave the rest to a friend to utilize on his boat.

I found out that this product also does wonders on other vehicles. I used it on motorcycles, ATVs, and speedboats without delivering significant harm to them.

Further, this RV slash marine antifreeze is non-corrosive. After a harsh winter, I can say with great contentment that my camper’s pipes are corrosion-free, sparing me the cost of cleaning, or worse, replacing them.

2. RecPro RP-19937 RV Antifreeze

Winter is not the only problem for RV plumbing systems as the summer heat may also harm pipes and connected water structures. Thankfully, this nontoxic RV antifreeze helps protect a motorhome’s water system throughout the year.

It also safeguards plumbing systems by lubricating the pipes, seals, and gaskets, preventing these elements from drying up due to significant heat. Further, the formula does a great job preventing plumbing components from freezing, thanks to its -50-degree Fahrenheit burst protection.

This product is also quite versatile as I can use it on different water pipes, including those in boats. It would even seem safe to use for different materials, including brass, copper, plastic, and steel.

As mentioned above, this is a nontoxic antifreeze. Thus, it is safe to use near animals and other organic subjects without posing significant risks to their well-being. As a bonus, the US Food and Drug Administration (FDA) approves the safe formula of this compound.

Aside from being nontoxic, this solution also features an anti-corrosion characteristic. Hence, I can rest assured that my camper’s plumbing systems or the boat’s engine will not be subjected to early signs of corrosion.

3. Century Chemical TF-1 Transfer Fluid Antifreeze

Buying antifreeze means purchasing a product that will not compromise the integrity of systems in vehicles. Thankfully, this product from Century Chemical promotes a high level of safety during and after use.

First, it is an antifreeze with low toxicity. Thus, I will not worry if I accidentally drop a drop or two of this product into my RV or home’s water supply.

While we are on the topic of safety, I found that this anti-freezing solution also does not corrode pipes. After all, excessive moisture can present problems to camper piping systems, especially corrosion. Luckily, this product offers me some confidence that no corrosion will affect my water quality.

Another distinct feature of this RV antifreeze concentrate is its pH inhibitor. Meanwhile, other antifreeze products, particularly low-quality variants, may change the pH of potable water, thus might promote higher risks of health issues.

4. Star Brite 31400R-6 Anti-freeze Antigel

Another versatile antifreeze to add to this list is this StarBrite antifreeze. I tried this winterizing solution in my camper. Delighted with the first-rate results, I also used it on the drinking water systems and engines of other types of trailers and marine vessels.

Still, its versatility does not go beyond recreational and marine vehicles. This Star Brite non-toxic propylene glycol-based antifreeze cannot be used on other land vehicles, such as trucks, sedans, and SUVs.

Nonetheless, this product’s anti-freezing effects on RVs and boats have a premium additive to prevent damages from different sources, including rust and corrosion. Further, it can afford safe use on various materials, like aluminum, copper, brass, and rubber.

Another great trait brought by this antifreeze is its convenience. It is ready-to-use and does not require diluting. Hence, it removes the guesswork required by some competing products.

I should also mention that this Star Brite non-toxic antifreeze comes in six containers in one pack. Therefore, I have more than enough for my camper and a friend’s boat. I might even have more left to give as presents in the recreational and marine vessel communities.

5. Froggy’s Fog CHEM-PG-1G Propylene Glycol

The Froggy’s Fog CHEM-PG-1G Propylene Glycol is among versatile products, thanks to its broad range of potential uses. The reason for this antifreeze’s safety is its main ingredient – propylene glycol.

Propylene glycol has a range of uses, such as preventing RV plumbing systems from freezing or overheating. But, it can also become an ingredient in certain foods and cosmetics. It is not surprising to see propylene glycol to be in shampoos and mouthwashes.

Aside from its flexibility, this product is non-toxic to both humans and animals. Thus, I do not have to worry if I accidentally spill some on my pet or plants.

Further, this relatively all-around ingredient can also become a substitute de-icing compound. It can become an ideal and quick solution to remove excess ice from other objects, especially frozen driveways during winter.

This freeze is sold at a reasonable price. I deem this purchase of great value, considering the product promotes dozens of possible uses.

6. Camco 30611 RV Antifreeze Concentrate

The first item on this list is quite the catch, considering it promotes first-rate versatility. Aside from using it in an RV, we can put the solution in other water systems, such as boats, pools, and vacation homes.

At first, I was not prepared to see this 2-pack set to be partially-filled. However, a little digging told me that this was deliberate. I diluted the contents to fill the container, providing me with a gallon of antifreeze for my camper, and that amount is fairly sufficient.

Applying it to my RV’s plumbing system was nothing short of a dream. The burst protection seems to take effect the moment the fluid touches the pipes as I applied it during the cold winter months. The product’s label says it can protect plumbing systems up to -50 degrees Fahrenheit, and it seems to uphold that claim.

I should also mention that this anti-freezing formula is 100% biodegradable. Therefore, I do not have to worry about harming Mother Nature if I need to handle the task out in the open. Further, this compound is non-toxic and non-hazardous to use with kids and pets nearby.

7. PEAK ZY-GHM-0902-27 RV Antifreeze

This Peak RV antifreeze can make a difference for marine systems in winter weather. It promotes high-quality results at a fairly reasonable price point.

First, I was sufficiently impressed by this anti-freezing agent’s versatility. At its price, I was not expecting it to be usable on vehicles other than RVs. To my surprise, it can work on boats and other piping systems. The solution can even winterize a pressure washer.

Further, this one-gallon antifreeze is FDA approved. Therefore, it is reasonably safe to use out in the open, close to animals and plants. It is also safe to be disposed of outdoors without harming wildlife.

The minus 50 degree-Fahrenheit freezing point is always a beneficial feature. My initial tests lead me to place the container in the refrigerator to see if the fluid froze. My expectations were low, but the compound proved me wrong. In other words, the mixture did not freeze, giving me a peace of mind that my camper’s plumbing will not freeze in the winter.

It also has a bright pink color. This characteristic allows me to see if leaks appear in my RV’s pipes.

8. Camco 30757 RV And Marine Antifreeze

Any RV and marine vehicle owner who wants to buy antifreeze in bulk should check out this set from Camco. Coming in a pack of six one-gallon containers, the solution is ready to use right away. In other words, this anti-freezing compound does not require additional water before application.

Further, this is a propylene glycol RV antifreeze, a familiar ingredient in different food products. Such a formula is reasonably safe to use near nature. This product is also odorless, so it does not irritate you or attract wild animals.

The freezing point also goes down to about -50 degrees Fahrenheit. It kept my RV’s pipes frost-free for an entire winter season. Also, I appreciate that it maintains the piping system’s sufficient moisture, increasing protection against other dangers like algae and corrosion.

Its lubricant-like properties allowed me to apply some of the product on valves and pumps. I am quite content to report that those experiments worked well as those components did not experience freezing throughout the winter.

9. Chemworld RV and Marine Antifreeze

Versatile and safe – these might be the two best terms to describe this product. Usable with campers and boats, this RV/ marine antifreeze is applicable in different piping systems, particularly those made with relatively common metals like aluminum, copper, and iron.

The product has burst protection of -40 degrees Fahrenheit, which is fairly decent for an antifreeze of its kind. Unless the temperature returns to freezing conditions, I am confident that my pipes are safe from extreme cold damage.

Its red color is also a great addition. This trait allows me to detect leaks before they get out of hand.

This RV and marine antifreeze arrives with a food-grade corrosion inhibitor. This characteristic means the solution is safe when dropped in food or water. Also, as its name implies, the inhibitor prevents corrosion to recreational and marine vehicles’ pipes.

Further, this package comes with two containers of 32-oz. RV antifreeze concentrate. This amount makes about two gallons of the solution after diluting it. Hence, the diluted antifreeze is enough to cover the pipes of a reasonably large camper.

10. Camco 36190 RV Winter Readiness Kit

Searching keywords like ‘RV antifreeze disposal’ or ‘bottles of antifreeze for RV’ online may yield results with plenty of standalone bottles of antifreeze. But, the best in convenience tends to come in a complete kit, which is what Camco offers in this winter readiness system.

This set comes with all items required to provide winter protection to a camper. There is a 20-liter bucket and three bottles of 32-oz antifreeze concentrate. Other accesories include one hand pump kit, fridge door stay mini, dehumidifier, blow-out plug, hanging dehumidifier, and refillable moisture absorber.

Thus, I can kiss those multiple trips to the hardware store goodbye to acquire those extra tools. Although, I had to pay a slightly higher cost than average to purchase this kit. But, the extra money spent is okay as the additional items make up for the price increase.

Additionally, this kit also has a Step-by-Step guide. So, this winterizing system might be the perfect system for RV maintenance beginners.

I may even go as far as to say that some users might not even use this instruction manual. It is because those products included in the package are easy to use. The straightforward designs do not deliver a lot of guesswork, promoting optimal convenience during installation and use.

11. SPLASH -50 900956D RV and Marine Antifreeze

Before, I wanted to buy an RV antifreeze that would help me winterize my camper for life. My wish was granted by Splash when the brand brought this 55-gallon monster.

Keep in mind that a regular-sized RV needs about two to three gallons of RV antifreeze. With that in mind, I can winterize my camper about 18 to 27 times with this giant container.

Thankfully, the brand designed this antifreeze with versatility in mind. In detail, this anti-freezing solution is also usable on other piping systems in boats, pools, spas, and even vacation homes.

It is also safe for skin contact. I forgot to wear gloves during one application and had some of the antifreeze drops on my skin. I did not feel any burning or harmful sensations during this incident. The reason for this extra layer of safety is its biodegradable and non-toxic formula.

Additionally, it can protect engine and plumbing systems up to -50 degrees Fahrenheit. With that trait, my RV’s pipes, and perhaps even the plumbing systems of other structures protected by this product, is sufficiently safe from freezing temperatures.

12. BioTherm Fluids BTRV-1 RV Antifreeze

Peace of mind comes to winterizing RVs with this antifreeze product. This specific antifreeze meets ASTM D1384 standards, which means it passed rigorous testing for safety precautions under controlled laboratory conditions.

Additionally, this is an NSF-registered HT1 product, meaning it is categorized as a heat transfer fluid safe for incidental food contact. More importantly, its biodegradable formula affords safety for use and disposal near organic matters.

Aside from promoting high levels of safety, this product is flexible. I did not experience problems using it in different water lines. It is a great product to use on aluminum, copper, steel, and cast iron with no visible signs of damage.

If you own vehicles such as sedans, motorcycles, trucks, and ATVs, this product is perfect for use on them, too. This antifreeze winterized those vehicles without promoting damages.

Also, the -50-degree Fahrenheit burst protection safeguards piping systems from freezing temperatures. After all, I can safely say that there is no such thing as ‘too safe’ in protecting an RV’s components from freezing.

What To Know Before Buying Antifreezes

Searching for the best antifreeze for motorhomes boils down to following careful consideration for some essential factors.

• Concentration and Dilution

The different RV antifreeze options tend to come in two packaging types: a full container or half-empty jug. The former is generally a pre-mixed solution, whereas the latter tends to require dilution.

Further, full antifreeze containers tend to be more expensive than their half-empty counterparts. Still, buying anti-freezing agents in full containers tends to be more convenient since users will be ready to put the products to use when they bring those mixtures home.

Additionally, it is safe to say that you can never have too much freeze protection. You can find bottles of antifreeze to protect water systems up to -30, -50, or -70 degrees Fahrenheit. Some variants might even go as far as -210 degrees Fahrenheit for their freeze-protecting features.

• Versatility

Are you looking for antifreeze for your RV? Perhaps you want an anti-freezing agent that can winterize other vehicles, such as sedans and ATVs.

An antifreeze that can promote excellent versatility might offer the best value for money. Some options may even be usable in other piping systems, such as kitchens, toilets, and swimming pools.

If you are unsure about the extent of your antifreeze’s usage, you can consult the owner’s manual if it is included with the package. Otherwise, do not hesitate to contact the manufacturer.

• Online RV Antifreeze Reviews

If you are not in a hurry, take the time to research RV antifreeze reviews for the product you want to purchase. Perhaps the last thing you want to experience is to make the mistake of buying an antifreeze because it does not meet your specific requirements.

Use keywords like ‘RV antifreeze bulk’ or ‘best antifreeze to use for motorhomes’ on search engines. Otherwise, you may look at the list of items in this article to help start your search.

• Price

Like buying relatively any product on the market, an item’s price might be a prime determinant if you will proceed with the purchase or not. As such, select an antifreeze that has a reasonable price tag.

Still, do not assume that inexpensive options do not provide high-quality results. Also, some expensive anti-freezing solutions may not supply satisfying outcomes.

Again, proper research is the key. Spend some time finding the best antifreeze for your motorhome, and you can stay away from wasting money.

The Different Types of RV Antifreeze

Take a look at Home Depot or other stores that sell anti-freezing solutions, and you will see different types of RV antifreeze. It is possible to put the myriad of antifreeze on the market into two main categories based on their main ingredients.

• Ethanol-Based Antifreeze

Perhaps the most readily available type of antifreeze out there, ethanol-based anti-freezing agents tend to be quite inexpensive. However, these options are also quite toxic and may leave bad tastes when placed in potable water systems. Furthermore, ethanol is flammable, so it might be best not to use it near high-temperature objects.

• Propylene Glycol-Based Antifreeze

Unlike ethanol, propylene glycol is non-toxic. It also tends to be biodegradable and non-flammable. Using this type of antifreeze in piping systems may increase protection against potential hazards like freezing and corrosion.

Benefits and Drawbacks of RV Antifreeze

Different anti-freezing solutions for motorhomes also mean various benefits and shortcomings. Still, it is possible to find some common pros and cons among the plethora of available antifreeze variants.

Potential Benefits of RV Antifreeze

• High burst and flash protection
• Usable on different vehicles, such as RVs, trucks, and ATVs
• Usable on different water systems, such as kitchen pipes and swimming pools
• Biodegradable and eco-friendly solution
• Colored fluid to detect early signs of leaks

Potential Drawbacks of RV Antifreeze

• Changes the taste of water
• Flammable, mainly if the main ingredient is ethanol
• Fragile jugs and containers
• Not enough solution for large vehicles

If you are an RV owner asking, ‘does RV antifreeze go bad,’ the answer to that question is ‘Yes.’ However, anti-freezing solutions for motorhomes tend to be quite long. Quality variants might last a few years if properly closed.

We also have a list of the best RV awning cleaner for your reference. Furthermore, take a look at our RV wash brush reviews if you like.

Who Makes The Best Antifreeze For RV

It is possible to find different trustworthy brands that manufacture quality antifreeze for motorhomes. Some examples include Camco and Prestone RV antifreeze.

Another example worthy of mentioning is Splash. This company started by producing windshield wiper fluid. This business spread its wings into other product categories throughout the years, such as pressure washer cleaners and antifreeze for RVs.

How Do RV Antifreezes Work

Most, if not all RV types of antifreeze generally work the same. Users pump the solution into their campers’ water pipes to increase protection from freezing. Without the help of decent quality antifreeze for motorhomes (at least), freezing temperatures can destroy entire piping systems.

Is It Safe To Drink RV Antifreeze

Although it might be reasonably safe to drink some RV antifreeze options, please do not attempt to do it at any time.

Always keep in mind that antifreeze is not a type of juice or relaxing beverage. It is best to grab a cold drink from the refrigerator if you are thirsty than drink an anti-freezing mixture specifically made for motorhomes.

Still, some types of antifreeze, especially those made with propylene glycol, are relatively safe for small consumptions. For example, a Walmart RV antifreeze made with this biodegradable ingredient might spill some of its contents into food. It is still possible to eat those food options without contracting numerous health issues.

But, always check the label or product description first before attempting to ingest antifreeze, regardless if you are serious about doing it or not.

Can I Dilute RV Antifreeze

The answer to that question is both a ‘Yes’ and a ‘No.’ You can or cannot dilute antifreeze for RVs, depending on the product.

Some options already come pre-mixed, which means you do not need to add extra water into the solution. However, some variants, especially half-filled jugs, require dilution to lower its potency as the highly-concentrated compound might create adverse effects on piping systems.

Is Pool Antifreeze The Same As RV Antifreeze

In most cases, pool antifreeze is the same as RV antifreeze. But, automotive antifreeze tends to be an entirely different product. Still, some anti-freezing mixtures can be used in cars. If you have doubts, do not hesitate to consult for the brand or manufacturer’s advice.

Is RV Antifreeze Heavier Than Water

RV antifreeze is generally heavier than water. It also means that anti-freezing mixtures tend to sink to the lowest levels of pipes. Hence, if the main pipe has a steady pitch, the antifreeze may come out of the main drain. The solution will then show up in other areas shortly after.

If you are in doubt about applying antifreeze for your RV, it might be best to leave the application to an expert.

Where Can I Buy RV Antifreeze

RV antifreeze is not too difficult to come by. Browse around your local hardware store, and you might see a jug or two of anti-freezing solutions for motorhomes.

Aside from physical establishments, you can also search online for a specific antifreeze for your camper. Perhaps you want a Zecol RV antifreeze or a mixture with propylene glycol as the main ingredients. Either way, use the correct keywords to fine-tune your online search. That way, you have a high chance of buying your desired product.

Conclusion

By now, you already know some of the best antifreeze for motorhomes. You might even find the best RV antifreeze in the list above.

But, if you want to go with my suggestion, consider purchasing Splash’s 55-gallon antifreeze. Aside from setting you up for life with more than enough antifreeze for your camper and other vehicles, it also provides first-rate burst protection.

Philip Lopez

Okay, so I’m Philip Lopez. I join Riverside Trailer as an editor, where I will be doing research for both content and reviews. I contribute to studies aimed at understanding the most typical problems encountered by RVers on the road. I also keep up with the newest RVing gadget innovations so that I can promptly evaluate and recommend the best options.