LAST UPDATED: December 18, 2020

The Best RV Antifreeze (Review & Buying Guide) in 2021

Best Choice Camco RV Antifreeze Concentrate 2-Pack Camco RV Antifreeze Concentrate 2-Pack
Best Value Splash RV Marine Antifreeze Splash RV/Marine Antifreeze
Premium Pick Froggy's Fog Propylene Glycol Froggy's Fog Propylene Glycol

For those who love the great outdoors, there’s nothing better than spending a night under the stars. If you are really into camping, then an RV can provide a warm, comfortable night of sleep on the coldest nights. But if you live in a cold climate, then there are probably a couple of months where you may want to keep your RV in storage for the winter. A high-quality RV antifreeze will help preserve your RV’s pipes and plumbing system. RV antifreeze comes in a variety of different sizes and types. Whether you are looking for great value, durability, versatility, or portability, we took a look at the best antifreeze currently on the market. Read on to see which is the best fit to protect your RV all winter long.

If you’re looking for a high-quality product, you can’t go wrong with the Camco RV Antifreeze Concentrate 2-Pack. This RV antifreeze is extremely reliable, and the 36 ounces of concentrate in each bottle can be mixed to create one gallon of quality antifreeze. In addition to your RV, this product is great for boats, vacation homes, pools, and more. The burst protection is as low as -50-degrees Fahrenheit when properly diluted. Both one-gallon bottles in this value pack are made from 100-percent biodegradable, GRAS, non-toxic, and non-hazardous material. This product is extremely easy to use: simply add water to the prefilled concentrate and fill to the one-gallon mark. If your antifreeze appears “slushy” when it is cold, do not worry. This is normal, and the consistency is still very effective.

One downside of the Camco RV Antifreeze Concentrate 2-Pack is its size. It is recommended that the entire one-gallon bottle be used as soon as you open it and mix the concentrate with water. So, if you don’t need a full gallon, this could be a waste of antifreeze.

Key Features
  • Extremely reliable, and the 36 ounces of concentrate in each bottle can be mixed to create one gallon of quality antifreeze.
  • In addition to your RV, this product is great for boats, vacation homes, pools, and more.
Specification
  • Brand Camco
  • Model 30611
  • Weight 6.39 pounds
PROS

Burst protection is as low as -50 degrees Farenheit when properly diluted.

Both one-gallon bottles included in this value pack are made from 100 percent biodegradable, GRAS, non-toxic, and non-hazardous material.

Extremely easy to use: simply add water to the prefilled concentrate and fill to the 1-gallon mark.

CONS

An issue with the size.

It is recommended that the entire 1-gallon bottle be used as soon as you open it and mix the concentrate with water.

If you don't need a full gallon, this could be a waste of antifreeze.

If you’re looking for a high-quality product at a great price, the Splash RV/Marine Antifreeze is nearly unbeatable. This product is available in a one-gallon bottle. In addition to your RV, this antifreeze is ideal for ATVs, UTVs, motorcycles, snowmobiles, jet skis, boats, vacation homes, and more. It is made from propylene glycol and is fully biodegradable. This antifreeze protects against the icing and bursting of pipes. It also lubricates and conditions seals and gaskets. This is a proven product that will keep your RV in great condition during the cold winter months without damaging any internal components. The one-gallon size is plenty to keep your RV winterized and the pipes from freezing all winter long.

One issue with the Splash RV/Marine Antifreeze is with the shipment. Some customers have reported that their bottles were damaged or broke while in transit. Make sure to inspect the bottle for any leaks upon delivery. Reach out to the company regarding a refund or replacement if there are any issues.

Key Features
  • Available at a nearly unbeatable price.
  • Available in a 1-gallon bottle size.
  • In addition to your RV, this antifreeze is ideal for ATVs, UTVs, motorcycles, snowmobiles, jet skis, boats, vacation homes, and more.
Specification
  • Brand Splash
  • Model 619526
  • Weight 8 pounds
PROS

It is made from propylene glycol and is fully biodegradable.

Protects against icing and bursting of pipes.

It will also lubricate and condition any seals and gaskets.

A proven product that will keep your RV in great condition during the cold winter months without damaging any internal components.

CONS

Some customers have reported that their bottle was damaged or broken while in transit.

Make sure to inspect the bottle for any leaks upon delivery.

Reach out to the company regarding a refund or replacement if there are any issues.

Despite its premium price tag, the Froggy’s Fog Propylene Glycol has proven to be an extremely effective product. In addition to winterizing your RV, this product can be used on your ATV, UTV, motorcycle, snowmobile, jet ski, boat, vacation home, and more. It is made from 100-percent USP food-grade propylene glycol. The antifreeze is completely safe to use in freshwater tanks, drinking water, pools, and more. This product is available in a one-gallon bottle, which is plenty for winterizing your RV. If you need to use it on multiple vehicles or in your home, it is available to purchase in several larger sizes or value packs. The antifreeze will not leave behind any unwanted tastes or smells when used in drinking water. Do not be alarmed if the antifreeze appears “slushy” when it is cold. This is normal and the consistency is still very effective.

One downside of Froggy’s Fog Propylene Glycol is its price point. While it is expensive, if you are looking for antifreeze to use in pools, freshwater, or drinking water, in addition to your RV, then this food-grade antifreeze is an ideal product for your needs.

Key Features
  • In addition to winterizing your RV, this product can be used on your ATV, UTV, motorcycle, snowmobile, jet ski, boat, vacation home, and more.
  • It is made from 100 percent USP food-grade propylene glycol.
Specification
  • Brand Froggy's Fog
  • Model CHEM-PG-1G
  • Weight 9 pounds
PROS

Completely safe to use in freshwater tanks, drinking water, pools, and more.

Available in a 1-gallon bottle, which is plenty for winterizing your RV.

Will not leave behind any unwanted tastes or smells when used in drinking water.

CONS

It is priced at a premium.

 

If you’re looking for a product to get your RV ready for winter, you can’t go wrong with the Camco 36190 RV Winter Readiness Kit. This kit comes with 10 different pieces to help prepare your RV for winter storage. In addition to a step-by-step RV winterizing guide, this kit includes a 20-liter bucket, fridge door stay, three 32-ounce Premium Ban Frost 2000 antifreeze concentrates, one hand pump kit, one blow out plug, one mini dehumidifier, one refillable dehumidifier moisture absorber, and one hanging dehumidifier. The antifreeze concentrate can easily be diluted in the included bucket. It will help to prevent your RV’s plumbing from bursting during the cold winter months. The dehumidifier products and fridge door stay are meant to help keep the air in your RV from becoming musty during storage.

If you are looking for a great all-around product, this kit has everything you need to winterize your RV all in one package. But it should be noted that you may need additional concentrate if you need to winterize multiple vehicles or anything larger than an RV, such as a vacation home or trailer.

Key Features
  • This kit comes with 10 different pieces to help prepare your RV for winter storage.
  • In addition to a step-by-step RV winterizing guide, this kit includes a 20-liter bucket, fridge door stay, three 32-ounce Premium Ban Frost 2000 antifreeze concentrates, one hand pump kit, one blow out plug, one mini dehumidifier, one refillable dehumidifier moisture absorber, and one hanging dehumidifier.
Specification
  • Brand Camco
  • Model 36190
  • Weight 12.2 pounds
PROS

Antifreeze concentrate can easily be diluted in the included bucket. It will help to prevent your RV's plumbing from bursting during the cold winter months.

Dehumidifier products and fridge door stay are meant to help keep the air in your RV from becoming musty during storage.

The kit has everything you need to winterize your RV all in one package.

CONS

You may need additional concentrate if you need to winterize multiple vehicles or anything larger than an RV, such as a vacation home or trailer.

The RecPro RV Antifreeze 2-Pack is available to purchase as a set of two one-gallon bottles. In addition to your RV, this product is great for boats, vacation homes, pools, and more. The burst protection is as low as -50 degrees F. This product will also lubricate seals and gaskets. It is safe to use in marine engine blocks. This antifreeze is FDA approved and made from non-toxic materials. It will not harm any steel, plastic, copper, or brass plumbing in your RV or home. A one-gallon bottle is plenty enough antifreeze to winterize your RV. This antifreeze will not leave behind any unwanted tastes or smells in your drinking water. Do not be alarmed if the antifreeze appears “slushy” when it is cold. This is normal and the antifreeze at this temperature and consistency is still very effective.

One downside of the RecPro RV Antifreeze 2-Pack is that some of the bottles have been damaged upon shipment. Make sure to inspect your package upon delivery. If you notice any damage or leaks, reach out to the company regarding a potential refund or replacement.

Key Features
  • In addition to your RV, this product is great for boats, vacation homes, pools, and more.
  • The burst protection is as low as -50 degrees Fahrenheit.
  • This product will also lubricate seals and gaskets.
Specification
  • Brand RecPro
  • Model RP-19937
  • Weight N/A
PROS

It is safe to use in marine engine blocks.

FDA approved and made from non-toxic materials.

It will not harm any steel, plastic, copper, or brass plumbing in your RV or home.

A one-gallon bottle is plenty enough antifreeze to winterize your RV.

Will not leave behind any unwanted tastes or smells in your drinking water.

CONS

Some of the bottles have been damaged upon shipment.

Make sure to inspect your package upon delivery.

If you notice any damage or leaks, reach out to the company regarding a potential refund or replacement.

The Peak RV & Marine Antifreeze is another premium-priced product, but it is an extremely high-quality, reliable antifreeze. This product does not require any mixing, and it can be used at full-strength straight from the bottle. A one-gallon bottle is enough to fully winterize your RV. It is safe for brass, metal, copper, plastic pipes, and more. The burst protection for this antifreeze is as low as -50 degrees F, making it an efficient product for almost any climate. In addition to your RV, this antifreeze can be used for winterizing your vacation home, boats, ATVs, UTVs, motorcycles, snowmobiles, jet skis, and more. All ingredients in this antifreeze are considered safe by the FDA. It will not leave behind any unwanted tastes or smells in your drinking water.

One issue with the Peak RV & Marine Antifreeze is with its price point. For a one-gallon bottle, it is quite expensive compared to other options on the market. But if you are looking for a quality product from a company you can trust, then you can’t go wrong by purchasing this antifreeze.

Key Features
  • Extremely high-quality, reliable antifreeze.
  • Does not require any mixing, and it can be used at full-strength straight from the bottle.
  • A one-gallon bottle is enough to fully winterize your RV.
Specification
  • Brand Peak
  • Model B07MBQ5YX3
  • Weight 6.1 pounds
PROS

It is safe for brass, metal, copper, plastic pipes, and more.

The burst protection for this antifreeze is as low as -50 degrees Fahrenheit, making it an efficient product for almost any climate.

In addition to your RV, this antifreeze can be used for winterizing your vacation home, boats, ATV's, UTV's, motorcycles, snowmobiles, jet skis, and more.

If you are looking for a quality product from a company you can trust, then you can't go wrong with this purchase.

CONS

It is quite expensive compared to other options on the market.

If you need a large amount of antifreeze for winterizing a fleet of RVs or an entire vacation home, then the Star Brite Non-Toxic Antifreeze is the choice for you. This antifreeze is available in a six-pack of one-gallon bottles. The bottles have already been diluted, and one bottle should be enough for winterizing a single RV. It is completely safe to use on brass, metal, copper, plastic piping, and more. In addition to your RV, this antifreeze can be used on vacation homes, boats, ATV’s, UTV’s, motorcycles, snowmobiles, jet skis, and more. The burst protection for this antifreeze is as low as -50 degrees F, making it safe for seals, rubber, or hose materials in all types of climates. Do not be alarmed if the antifreeze appears “slushy” when it is cold. This is normal and the antifreeze at this temperature and consistency is still very effective.

One downside of the Star Brite Non-Toxic Antifreeze is its size. A six-pack of one-gallon bottles is likely more than you will need for winterizing your RV, but if you have ample storage space, then this product will make a great value purchase.

Key Features
  • A large amount of antifreeze for winterizing a fleet of RVs or an entire vacation home.
  • Available in a six-pack of 1-gallon bottles that have already been diluted.
Specification
  • Brand Star Brite
  • Model B00NKV0QM8
  • Weight 55.2 pounds
PROS

It is completely safe to use on brass, metal, copper, plastic piping, and more.

In addition to your RV, this antifreeze can be used on vacation homes, boats, ATV's, UTV's, motorcycles, snowmobiles, jet skis, and more.

The burst protection for this antifreeze is as low as -50 degrees F, making it safe for seals, rubber, or hose materials in all types of climates.

CONS

An issue with the size.

A six-pack of one-gallon bottles is likely more than you will need for winterizing your RV, but if you have ample storage space, then this product will make a great value purchase.

If you’re looking for a high-quality product to winterize your RV’s floor heating systems, the Century Chemical TF1 Transfer Fluid is an ideal product. This product has high specific heat and thermal conductivities, very low toxicity, and is noncorrosive. It will not cause any damage if it ends up in the drinking water supply. In addition to RVs, this product can be used to winterize your boat, vacation home, ATV, UTV, snowmobile, jet ski, and more. It provides a natural lubricant to seals and gaskets, and it will not corrode any pipes in your RV. Another great feature of this product is that it has been specially formulated with inhibitors to provide a pH between 9.0 to 10.0. This helps to maintain the natural pH of your RV or home water system.

One issue with the Century Chemical TF1 Transfer Fluid is that it does not mix well with other antifreeze products. Make sure that you do not combine it with other brands, or that you clear your lines of other products before adding this antifreeze.

Key Features
  • High-quality product to winterize your RV's floor heating systems.
  • Has high specific heat and thermal conductivities, very low toxicity, and is noncorrosive.
  • It will not cause any damage if it ends up in the drinking water supply.
Specification
  • Brand Century Chemical
  • Model TF1
  • Weight 9 pounds
PROS

It provides a natural lubricant to seals and gaskets, and it will not corrode any pipes in your RV.

Another great feature of this product is that it has been specially formulated with inhibitors to provide a pH between 9.0 to 10.0.

This helps to maintain the natural pH of your RV or home water system.

CONS

Does not mix well with other antifreeze products.

Make sure that you do not combine it with other brands, or that you clear your lines of other products before adding this antifreeze.

Best RV Antifreeze Buying Guide & FAQ

RV antifreeze is a great product for winterizing your RV while in storage. It is available in a wide variety of different types, styles, and sizes. RV antifreeze will provide great protection for your RV, designed to keep the pipes from freezing during extremely cold conditions, as well as lubricating any seals or gaskets.

RV antifreeze is typically sold in large bottles, up to one gallon in size, which should be enough to winterize your entire RV. Some brands are sold as value packs, while others are even sold as part of a winterizing kit. 

Do You Need an RV Antifreeze?

trying the best RV Antifreeze
Pouring RV antifreeze into a car

There are several key advantages to using RV antifreeze. The most obvious benefit is that it protects your RV, including its floors and pipes, from freezing while in storage during the coldest winter months.

Most RV antifreeze includes a low-temperature rating, and they come as part of a value pack or kit. Many types of antifreeze are available to purchase as a concentrated mix or pre-diluted and ready to use.

  • RV antifreeze is designed to protect your RV, even in extremely cold climates. Look for a temperature rating as low as -50 degrees F, for use in any type of weather or location.
  • RV antifreeze is extremely versatile. In addition to RV’s, this product can be used to winterize your boat, vacation home, ATV, UTV, snowmobile, jet ski, and more. It also provides a natural lubricant to seals and gaskets.
  • RV antifreeze is typically safe to use on your RV or home piping. Look for a noncorrosive product, with very low toxicity. That way it will not cause any damage if it ends up in the drinking water supply. 

Types of RV Antifreeze

There are three main types of RV antifreeze. Each type comes with its own set of unique advantages and features. Depending on your specific needs, you may require a different type of RV antifreeze to best fit your RV piping. Make sure to familiarize yourself with all of the different types of RV antifreeze before making your final purchase.

Ethanol-Based

Ethanol-based antifreeze is the most common type of RV antifreeze. It is readily available to purchase from a wide variety of manufacturers, and it is available at a very budget-friendly price. This type of antifreeze is commonly referred to as alcohol-based antifreeze.

The one major downside of ethanol-based antifreeze is that it has been known to dry out rubber seals, gaskets, and eventually wear down your RV’s pipe system. It can also leave a bad taste or smell in the lines, even after it has been flushed out. This type of antifreeze is highly flammable, so it is not as safe as the other antifreeze options.

Ethanol/Propylene Blend

Ethanol/propylene blend RV antifreeze is slightly more expensive than ethanol-based antifreeze, but it is still available at a reasonable price. It is safe to use on all RV plumbing systems and is completely non-toxic. It does not dry out your seals, gaskets, or piping system nearly as rapidly as regular ethanol-based antifreeze.

There is still a concern when using ethanol/propylene blend RV antifreeze. It does still contain some percentage of alcohol, so it can occasionally leave behind bad tastes or smells in your lines. It is not highly flammable, but it should still be used with caution since there is a percentage of alcohol in the mix.

Propylene Glycol-Based

While it is priced at a premium, propylene glycol-based RV antifreeze is by far the highest-rated and safest option of the three types of RV antifreeze. It is completely non-toxic and generally safe to use on all RV plumbing systems. It is not flammable and does not have any fire safety hazards, like the other types of antifreeze. The other main benefit is that this type of antifreeze will not leave behind any unwanted tastes or smells in your pipes.

Another major benefit of propylene glycol-based RV antifreeze is that it acts as a lubricant to your seals and gaskets within the RV pipe system. It will not dry out your lines at all, like the other types of antifreeze. Besides its premium price point, it is a bit more difficult to find, and you will likely need to order this type of antifreeze online.

What to Look for When Buying RV Antifreeze

filling the car with the best RV Antifreeze
Filling up your car with RV antifreeze

For this article, we extensively researched and tested a wide variety of types and different models of RV antifreeze. These included all three types of RV antifreeze from several different, reputable manufacturers. The various types of antifreeze were all tested for protection, versatility, reliability, and durability. They were all tested in a variety of weather conditions and several different situations.

The results of thorough research can be found throughout this article. Make sure to familiarize yourself with the different types, brands, and features of each RV antifreeze before making your final purchase.

The Most Important Features of RV Antifreeze

If you are an avid camper who frequently uses your RV throughout the year, it is very important to find a high-quality RV antifreeze that offers maximum protection for your RV while in storage during the cold winter months. You should consider many key features to find the best RV antifreeze to preserve the life of your RV.

Formula

The type of RV antifreeze and what it is made from is an important consideration. Make sure to look for an RV antifreeze that is non-toxic and phosphate-free. You want to find a quality formula that will not lead to rust or corrosion in your RV’s pipe system over time.

The better the quality of your antifreeze, the better the peace of mind you will have while winterizing your RV. Most RV antifreeze is completely biodegradable, will not dry out your lines, or leave behind any trace of a bad aftertaste or smell in your drinking water system. 

Temperature Rating

The antifreeze temperature rating is another important factor to consider. Some antifreeze feature burst protection with a temperature rating as low as -50 degrees F. If you live in a climate where you do not experience single-digit or freezing temperatures, you will likely not need -50 degree F antifreeze.

Before placing your RV in storage, it is always a good idea to check the temperature rating of your antifreeze. Depending on your climate, you may need to use antifreeze with a lower temperature rating for the best protection of your RV’s flooring and plumbing system.

Versatility

The versatility of your RV antifreeze is another important factor to consider. Some RV antifreeze is not just ideal for your RV’s pipes, but they can also be used on vacation homes, boats, pool systems, ATV’s, UTV’s, snowmobiles, jet skis, and more.

The best RV antifreeze can be used on a variety of pipe systems, including brass, metal, copper, plastic piping, PVC piping, and more. Some RV antifreeze is even included as part of a winterizing kit, with several quality items to winterize and dehumidify your RV. If you will be winterizing multiple vehicles or a home, you may want to consider purchasing a value pack of RV antifreeze to best fit your needs.

Best RV Antifreeze FAQ:

Understanding the different types of RV antifreeze and how to properly use them is key to ensuring the proper safety and protection of your RV in storage. Make sure to familiarize yourself with the various types and features of all the RV antifreeze before purchasing to best fit your lifestyle. While there are many models of RV antifreeze available on today’s market, make sure to purchase one that is the best fit for you.

Q. What’s the difference between RV antifreeze and regular antifreeze?

There is no major difference between RV antifreeze and regular antifreeze. RV antifreeze is non-toxic and meant to be added to the RV plumbing system. Regular automotive antifreeze is often toxic, and it should only be put into an engine cooling system.

Q. What happens if you put RV antifreeze in a car?

It is not meant to put RV antifreeze in a car or vehicle. The car engine can overheat or warp. If you mix RV antifreeze in with regular automotive antifreeze it could create hot spots, potentially clogging your vehicle’s heater core. 

Q. How long is RV antifreeze good for?

In general, RV antifreeze does not go bad. If it is closed and sealed properly, it should last between one to five years, and you can use it any time during that period.

Our Top Pick

The Camco RV Antifreeze Concentrate 2-Pack is our choice for the best overall RV antifreeze. It is extremely reliable, and the 36 ounces of concentrate in each bottle can be mixed to create one gallon of quality antifreeze. This product features burst protection as low as -50 degrees Fahrenheit when properly diluted. 

Final Thoughts

For the best overall RV antifreeze, consider the Camco RV Antifreeze Concentrate 2-Pack, a value two-pack of concentrate that is great for boats, vacation homes, pools, and more, or the Splash RV/Marine Antifreeze, available in a 1-gallon bottle size at a nearly unbeatable price.

Sources:

  1. Antifreeze – Wikipedia