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Who Has the Cheapest RV Antifreeze?

RV antifreeze is a must-have item for any RVer who lives in an area that experiences freezing temperatures. However, if a cheaper option can do the job, you don’t want to spend more than you have to. 

The more money you can save, the more you’ll have for future RVing adventures. So who has the cheapest RV antifreeze? Let’s find out. 

Is There a Special Antifreeze for RVs?

While standard antifreeze will likely protect your RV’s plumbing during cold temperatures, it’s extremely toxic. You should never use antifreeze in your RV’s plumbing unless it’s specifically rated for RVs. 

While RV antifreeze may have a funky taste, it’s not likely to cause any adverse conditions if you don’t get every drop out of your system. Even though RV antifreeze is non-toxic, you should avoid consuming it.

When Should You Use RV Antifreeze?

You should use RV antifreeze at the end of each camping season while winterizing your RV. This is especially true if your RV will sit in storage in an area that experiences freezing temperatures. 

Temperatures dipping below freezing for a few hours aren’t likely to be a big deal. 

However, temperatures in the 20s or below for too long can cause water in your lines to freeze. This can cause burst pipes and damage your plumbing system.

Pro Tip: As temperatures drop you’ll need to know How To Winterize Your RV.

RV driving over the snow
When temperatures drop, you will need to properly winterize your RV to keep it in working condition.

How Do You Use RV Antifreeze?

Using RV antifreeze is relatively easy and only requires two or three gallons in most cases. First, remove as much water from your RV’s system as possible. You can do this by draining your freshwater tank and opening the faucets, toilets, and showerheads to remove the pressure.

Many modern RVs have a siphoning feature that makes it incredibly easy to run RV antifreeze into the lines. If yours doesn’t have this feature, you can buy a kit to use the existing water pump to siphon the antifreeze.

Once you have everything connected, place the siphon hose into the antifreeze containers and open each fixture one at a time. Keep it open until you see the fluid’s pink color coming through the fixture. 

Finally, repeat this for every faucet, showerhead, and toilet in your RV. Don’t forget outside kitchen sinks and showers. 

Should I Put RV Antifreeze in My Freshwater Tank?

You should not put RV antifreeze into your freshwater tank. Freshwater tanks can hold upward of 100 gallons. 

While it won’t harm your tank, it will require substantially more RV antifreeze to get the job done. You’ll simply toss money down the drain if you use more antifreeze than necessary.

Who Has the Cheapest RV Antifreeze?

Aside from the label and price, all RV antifreeze products are the same. Spending a few extra bucks on a premium brand isn’t necessarily worth it. The cheap stuff can work just as well. 

You can find cheap RV antifreeze at Walmart and Amazon. You can typically expect to pay $4 to $7 per gallon. 

Depending on the size of your RV and how many fixtures you need to winterize, you’ll typically need two or three gallons.

However, RV antifreeze can last for years, so having an extra gallon or two won’t hurt. It just means you’re ready for next year.

Person pouring antifreeze into vehicle in the snow
Only use antifreeze meant for RVs in your camper.

Which RV Antifreeze Gets the Best Customer Reviews?

You don’t want to trust just any RV antifreeze to protect your RV’s plumbing system. Find one that has a proven track record. Fortunately, RVers have been using a few brands of antifreeze for years, and a few have earned a positive reputation in the community. Let’s look at a few you might want to consider.

Splash RV/Marine Antifreeze

Splash RV/Marine Antifreeze comes in a one-gallon jug and can protect your RV’s water lines in temperatures as low as -50 degrees Fahrenheit. 

Clyde said, “I buy this product every year to winterize my RV. It’s rated to -50 degrees, so I have peace of mind knowing that the pipes and faucets in my unit will not freeze.” 

RecPro RV Antifreeze -50°F Protection Non-Toxic

RecPro has a great reputation in the RV community and offers various products for RVs. This non-toxic RV antifreeze will protect your water lines from freezing temperatures and the seals and gaskets. 

Additionally, you don’t have to worry about it harming any of the metal components in your system, including steel, copper, or brass connections.

Mark said, “I winterize my RV every year. I have used this antifreeze for several years without issue. Great price and four gallons get me at least two years of winterizing.” 

You don’t have to spend a fortune to protect your RV’s plumbing.

Home Garden AutoZone Original AZ220632 RV/Marine Antifreeze

The Home Garden AutoZone RV/Marine antifreeze protects to -50 degrees Fahrenheit. In addition, it’s safe, odorless, and will not stain anything if you accidentally drip it onto surfaces. 

This antifreeze is a great solution whether you need to winterize an RV, boat, or vacation home.

Pro Tip: Didn’t use anti-freeze? Find out Will Pouring Hot Water Down the Drain Unfreeze RV Pipes?

Is RV AntiFreeze Safe for Your Pipes?

RV antifreeze is exceptionally safe for your RV’s plumbing. However, get as much of it out of your water lines as possible before using your RV again. 

If not, you’ll likely notice a funky taste in the water until you do. RV antifreeze can protect your RV’s water lines all winter as your rig sits in storage waiting for future adventures. 

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