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The Best RV Antifreezes

Written by Philip Lopez / Fact checked by Paul Lemaire

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.

best rv antifreeze

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.

Product name Outstanding Features
Top 1
SPLASH 619526
  • Usable on other vehicles
  • Non-corrosive anti-freezing solution
  • One gallon content is more than enough
Top 2
RecPro RP-19937
  • All-weather protection
  • Non Toxic ingredients
  • Usable on different materials
Top 3
Century Chemical TF-1
  • Does not corrode pipes
  • Pre-mixed, more convenience
  • Does not contaminate the water supply

Table of Contents

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.

Still, I did not expect to see tiny black things floating in this product’s bottle. I could not find those particles as part of the RV antifreeze ingredients. It might promote worry in some users, but those things do not seem to adversely affect the solution’s anti-freezing performance.

  • Top-notch flash protection of up to -225 degrees Fahrenheit
  • One gallon content is more than enough to winterize an average-sized camper
  • Usable on other vehicles, such as ATVs and speedboats
  • Non-corrosive anti-freezing solution
  • Tiny black particles are floating with the contents
Upon seeing this RV antifreeze’s performance, I have no doubt when putting it on this list. Interested users planning to protect their motorhome’s plumbing system from the severe cold might not want to miss out on this product.

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.

Still, I did not expect the container to be quite large. It is even slightly larger than some of the other bottles of antifreeze I bought in the past. This trait might spark some storage concerns, but I can safely say that moving a few things around your motorhome remedy such an issue.
  • All-weather protection for motorhome plumbing systems
  • Burst protection of up to -50 degrees Fahrenheit
  • Usable on different materials, such as brass, copper, plastic, and steel
  • Non Toxic ingredients and FDA approved anti-freezing agent
  • Promotes peace of mind, thanks to its anti-corrosion trait
  • The container is slightly larger than some competing products
All in all, first-rate versatility meets excellent all-year anti-freezing performance in this product. If you see it on a store shelf, you might not consider taking a second guess purchasing this product.

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.

This product also comes pre-mixed. It means I do not need to spend extra time and effort adding water to the mixture to let it cover a wide area. But, it also means that this solution is not compatible with other antifreeze brands.

Other essential features that come with this antifreeze is its 212 degrees Fahrenheit boiling point and its ability to be used in camper heating systems.

  • Does not contaminate the water supply
  • Does not corrode pipes
  • pH inhibitor prevents changing potable water in a plumbing system
  • Comes pre-mixed, increasing its convenience factor
  • May not mix well with other antifreeze from other antifreeze brands
If safety is your main concern when using the best RV antifreeze, consider this product for your next purchase.

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.

Although, the six-packs of Star Brite non-toxic antifreeze solutions come with a slightly higher cost. Still, it does mean that I get six containers from the get-go, and the contents might last me more than a few years of use.
  • Usable on drinking water systems and engines of RVs and boats
  • Contains a unique ingredient to prevent freezing, rust, and corrosion
  • Safe to use on different materials, such as aluminum, copper, and rubber
  • No need to dilute; thus, effortless application
  • Comes in six one-gallon containers
  • Might not be possible to use in other land vehicles, like sedans and SUVs
  • Slightly more expensive than one- or two-gallon kits
This RV and marine antifreeze is an economical choice for RVers and boaters that want to winterize their vehicles without frequently going to the store.

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.

Still, it is important to note that this product might not be sufficient to work effectively in certain situations. For instance, propylene glycol can be a good-hand sanitizer, albeit it is quite oily. Therefore, you might need additional ingredients to remove the excess oil.
  • Protects RV piping systems against freezing and overheating
  • Can be an ingredient in other products, including foods and cosmetics
  • Non-toxic for humans and animals
  • Found at a fairly reasonable price point
  • Usable as a de-icing compound
  • Might need extra ingredients to increase efficacy in certain uses
This list of the best RV types of antifreeze on the market ends with a ‘bang’ with this propylene glycol antifreeze. It offers a plethora of uses, and it is reasonably safe to use on humans, animals, and RV water systems.

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.

On the downside, I would prefer it if the container was more durable. It is a bit flimsy, in my opinion. Some pressure might result in a small bending to the bottle’s shape. So, I had to transfer the contents to another, more durable container to solve this issue.
  • Usable on different water systems, such as those in RVs, boats, and pools
  • Sufficiently provides one gallon of RV antifreeze when diluted properly
  • Offers burst protection up to -50 degrees Fahrenheit
  • Biodegradable, non-toxic, and non-hazardous to organic materials
  • The container might be better if it were more durable
This Camco RV antifreeze is a great way to kick start this list of the best antifreeze for motorhomes. It has a plethora of features that can satisfy many camper vehicle owners.

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.

This product would have been better if it had a better container. Pressing on the bottle with a decent amount of force creates a visible dent. If I pressed more, I would have punctured it.
  • Suitable for both RV and marine systems
  • Fairly inexpensive, making it ideal for strict budgets
  • Biodegradable and FDA-approved
  • -50 degree Fahrenheit burst protection
  • The bright pink color to help detect leaks
  • The container tends to be quite easy to dent and puncture

Recreational vehicle owners in a fairly strict budget should consider this product. It is one of the best non-toxic antifreeze on the market, produces exceptional results, and does not break the bank.

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.

The only downside I can find with this product is its packaging. The six containers are compact, which can be a good sign. But, they also tend to be squashed, which might increase the damage risk to the container for some buyers.
  • Economical purchase thanks to six one-gallon containers for one transaction
  • Does not need additional water to use
  • Propylene glycol-based RV antifreeze makes it safe to use and dispose
  • Protects and lubricates pipes, valves, and other plumbing and engine parts
  • The packaging tends to squash the bottles, increasing the risks of damages
If you are looking for the best RV antifreeze safe to drink, use, and dispose of, you might consider ending your search with this pack of six propylene glycol antifreeze from Camco.

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.

I should mention that I found one shortcoming regarding this formula. It seems that the last bits tend not to mix well, reducing its effective amount.

  • Excellent versatility as it is usable on relatively all common metals like iron
  • -40-degree Fahrenheit burst protection
  • Red color provides early leak detection
  • Does not promote serious safety hazards because of the corrosion inhibitor
  • Comes in two 32-oz. bottles that make about two gallons of antifreeze
  • The last bits of the solution may not mix well
High-quality versatility and safety come in these two, well-packaged 32 oz. RV and marine antifreeze containers. You might not even have second thoughts about buying this anti-freezing solution if you see these bottles in a store.

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.

Still, the kit might be a bit too much for some interested buyers that only want an antifreeze. However, it is reassuring that the accessories included in the package might be useful to many users.
  • A complete RV winterization system with items like a blow-out plug and bucket
  • Significantly reduces multiple trips to hardware stores
  • Includes a Step-by-Step guide for beginners
  • Straightforward and convenient designs for the accessories
  • The additional items might be a tad too much for some users
If you are looking for a complete RV winterizing kit, you might not look further than this Camco RV antifreeze concentrate system.

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.

However, I did find it to be quite a challenge to store this container. It did take some crafty in-house storage cleaning techniques. But, the large container might be an issue for small spaces.
  • 55 gallons of antifreeze is more than enough to winterize RVs 18 to 27 times
  • Usable in different piping asystems, including RVs, pools, and spas
  • Biodegradable and non-toxic nature makes it safe for incidental skin contact
  • Burst protection of up to -50 degrees Fahrenheit
  • Massive container might present storage issues to small spaces
Confidently say goodbye to buying any other antifreeze when you buy this antifreeze product. At 55 gallons, you might be set for life to winterize your RV or boat.

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.

However, I found that if this antifreeze gets into my camper’s potable water supply, it leaves a mildly sweet taste to drinking water. It does not seem to cause serious health concerns. But, some users might not like this different taste.
  • Meets ASTM D1384 standards
  • NSF-registered HT1 product with biodegradable ingredients
  • Reasonably safe to use on different materials like aluminum and copper
  • Usable on different vehicles like RVs, sedans, and ATVs
  • First-rate -50-degree Fahrenheit burst protection
  • Might induce a sweet flavor to dirnking water
This antifreeze is a great contender to become one of the safest winterizing solutions for RVs on the market. The safety precautions followed by the brand offer peace of mind to this product’s users.

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.


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.

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