6 Best Coolants For Jeep Wrangler – Top Antifreeze For JL, JK

eep wranglers are among the favorite on-road and off-road vehicles in the USA. However, without proper engine maintenance, you can’t expect a trouble-free experience. The engines of the jeeps are directly exposed to the heat that is produced during the fuel-to-energy conversion process. So every engine contains a built-in cooling system that regulates the temperature.

A coolant or antifreeze is a chemically formulated product that is used in cooling systems. These coolants dissipate the heat in elevated temperature conditions. Also in extreme low-temperature conditions, these coolants can retain water and prevent the engine from freezing. To help you choose the best coolant for the jeep wrangler, I’ve reviewed the six best options that you can buy today.

Best Coolants For Jeep Wrangler Overview

6 Best Coolants For Jeep Wrangler Reviews

1. Mopar 68163849AB 10 Year/150,000 Mile Coolant

Mopar antifreeze is a premixed 50-50 coolant that offers incredible all-season performance. This is one of the best-selling and top-rated anti-freeze products and I loved its impressive performances and class-leading mileage. The coolant is competitively priced and offers smooth performance offering the best value for the money. Furthermore, it is highly compatible with a wide range of trucks, SUVs, and other heavy-duty vehicles. It works best with jeep wrangler jk & Jl.

This is specially designed for engines that require OAT coolant. It will not burn or heat up the gaskets and deliver reliable performance for many years to come. The Organic Acid technology used in this coolant ensures excellent performance without damaging the engine. It should never be mixed with water or nay non-conforming antifreeze.

This coolant features an ethylene glycol-based formulation that prevents freezing or over-boiling in extreme temperature conditions. The coolant will last for 10 years or offer a mileage of 15000 miles. During this period it works at an impressive efficiency giving you the best value for money. This antifreeze comes in a purple shade and offers compatibility with the Jeep Wrangler jk, jk 2-door 2013-2018 modes, and Jeep Wrangler JK unlimited 4-door 2017-2021 models.

Mopar OAT antifreeze with incredible service life and a wide compatibility band is the best coolant for jeep Wrangler you can buy. The coolant comes pre-diluted and premixed and is powerful enough to handle extreme weather conditions.

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2. PEAK OET Extended Life Green 50/50 Prediluted Antifreeze

PEAK OET Green prediluted coolant is one of the most affordable options you can buy. This premixed coolant offers a quick top-off and works best with OET-compatible engines. The coolant uses advanced anti-freeze technology to ensure smooth and trouble-free performance throughout its service life. The coolant features phosphate-enhanced organic acid technology and offers complete protection right out of the box.

Another perk of this antifreeze product is that it is free of nitrite, borate, and silicate. With this formation, it can outperform many premium-grade coolants and I loved the corrosion resistance offered by it. It offers incredible antifreeze and anti-boiling performance even in extreme weather conditions. Also, it offers complete protection and corrosion and scaling ensuring a trouble-free engine performance for many years.

This coolant lasts for 5 years or offers a mileage of 150, 000 miles before losing its efficiency. To ensure a reliable performance never mix water or any other non-conforming coolant with these products. However, you can dilute with many compatible products to make the topping of quicks easy. Quality control is the biggest issue with PEEK coolant. Many users reported packaging issues which is a little disappointing.

If you are looking for an affordable coolant for a jeep wrangler, this green coolant by PEAK is the best option. The service life of 5-years and reliable performance against corrosion, boiling, and freezing in tough conditions make it the best coolant for jeep wrangler.

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3. Zerex G05 Antifreeze/Coolant For 2015 Jeep Wrangler

Next on our list is Zerex G05. This coolant is meant to work with both gasoline and diesel engines and offer antifreeze performance even in extreme weather conditions. It maintains the even operating temperature of the engine and you will get a trouble-free experience even in the most demanding off-roading applications.

The best part of this coolant is that it doesn’t damage the plastic part or equipment in the engine-thanks to the defoamer technology. The low silicate and low pH composition combined with a phosphate-free formula prevent delicate components like plastic and aluminum from damage. It uses the highest quality virgin ethylene and glycol for leading-edge performance against corrosion and rust.

Also, it uses advanced European formulation techniques that help it fight well against rust and corrosion. The coolant also comes with deposit control compounds that prevent the scaling and water residue build-up giving you trouble-free performance for many years. It comes in the premixed and prediluted formula, and it is advised not to add water. The coolant comes in the colorless form, that’s probably the only significant con. It can be confused with water or any other diluent if the original packaging is not available.

Zerex G05 antifreeze with a premium-grade formulation is undoubtedly the best coolant for jeep wranglers. This antifreeze is designed for the needs of heavy-duty SUV engines and delivers solid performance in all seasons.

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4. Valvoline Multi-Vehicle 50/50 Prediluted Ready-To-Use Antifreeze

Valvoline multi-vehicle pre-diluted antifreeze has a wide compatibility band and it is the best coolant for jeep wrangler Jl. Although it is not actually formulated for a jeep but is the best option if you have an upgraded or repaired jeep engine. It is a perfect choice for the jeep wrangler models that are no more under the factory warranty. What makes it a perfect protective agent for the engine is the Alugard Plus components.

This chemical compound triggers the chemical reaction and ensures protection for the engine in all weather and temperature conditions. The coolant’s advanced formulation prevents the engine from freezing up in low-temperature conditions. Also, it regulates the engine temperature in extreme summers and prevents it from boiling. The formula also contains high-quality anti-corrosion and anti-rust components that offer excellent protection and extend the engine’s service life.

Since it comes in the pre-mixed and pre-diluted form, it’s pretty easy to top off the coolant. It is back-compatible with all colors but it is advised not to mix it with water. The only issue that I noticed was the poor packaging. The quality of the cans and sealing was not good. Also, the coolant is a little more expensive than other products in this class.

Valvoline multi-vehicle coolant comes in excellent consistency and lubricates the seals and gaskets for a smooth and trouble-free experience in the long run. I loved this product for its wide compatibility band and if you are looking for an aftermarket coolant for jeep wrangler jk or jl, this is a definite way to go.

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5. ACDelco GM Original EquipmentPre-Mix Engine Coolant

Next on our list is ACDelco GM original equipment premix coolant. The coolant is composed with the need for serious off-roading application in mind and offers a service life of around 5 years or 150, 000 miles. It features a clever formation that offers solid performance for both heat and corrosion resistance. Since engine components are highly prone to damage due to elevated temperature this coolant regulates the engine’s temperature even in the most demanding conditions and keeps it from boiling or freezing up.

Also, I really loved its non-silicate formula. The water retention is more than impressive and the low pH environment prevents the pipes, gasket, and sensitive aluminum parts from damage. Due to excellent water retention, it dissipates heat very well ensuring an ultra-smooth experience during tough driving applications like hauling and towing trailers.

Its backward compatible formula helps it work with a wide range of other coolants. You must look at the user manual to see the list of non-conforming coolants. It has a longer shelf life and you can use it for more than 8 years within a single package. The only limitation of this antifreeze product is that it is not fully compatible with jeep wrangler jk models. It may need more frequent replacement if used with an incompatible engine.

ACDelco GM OE antifreeze is designed with vehicle-specific and application-specific needs in mind. It is a great option for the Jeep Wrangler jk 2014-2018 models and offers excellent temperature and rust resistance.

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6. Zerex Original Green Antifreeze

The final option on the list is Zerex Original green antifreeze. This is the best antifreeze for jeep wrangler that comes in a ready-to-use, low silicate formulation. The is a competitively priced cooling solution that offers solid heat resistance making it perfect for tough off-roading applications.

The jeep coolant is designed with the need of heavy-duty vehicles in mind and combines silicate-free formula with a low pH environment. Its state of the art temperature resistant technology prevents the engine from operating at extremely high temperatures. The advanced heat transfer system dissipates the heat and regulates the internal temperature for a trouble-free experience.

In addition to heat performance, it performs really well against corrosion and rusting. The formula contains anti-deposit components to prevent scaling and minimize the chances of corrosion. Since it comes in a ready-to-use form, you can apply it quickly within a few minutes. The biggest issue with this coolant is that it has a short service life. You need to replace it every three years to ensure a smooth performance. Also, check out the best gear oil for jeep differential.

Zerex Original antifreeze with silicate formula is the best jeep engine coolant that you can buy in 2022. The coolant comes at a very affordable price and drives more than impressive heat resistance in extremely higher temperatures.

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Features To Look For While Buying Coolant For Jeep Wrangler

Choosing a coolant is a tough job since the performance of the engine depends on its compatibility with the coolant. Not all types of coolants work with all jeep engines and you must focus on various features to get the coolant that is exactly in line with your needs. This guide will help you understand how to choose the best coolant for a jeep wrangler.

Coolant Formula

Formulation of the coolant decides whether it will work with a specific engine or not. Usually, two types of coolant formulas are available: OAT and HOAT.

HOAT:

Hybrid Organic Acid Technology coolants usually work best with the jeep wrangler 1990-2013 models. These coolants offer a service life of around 5 years. These formulations offer impressive corrosion resistance and can top off the internal engine parts to protect them against corrosion and rusting.

OAT:

Organic Acid Technology is used to prepare advanced formulas and these coolants or antifreeze products are ideal for jeep wrangler 2013-2022 modes. These coolants can last as long as 10 years before losing their efficiency. These coolants are usually available in blue, yellow, and purple shades.

Concentrated Vs Pre-Diluted

Most coolant manufacturers are now making remixed or pre-diluted coolants. These products offer a ready-to-go experience. There is no need to add the water to get the right concentration and consistency. On the other hand, coolant that comes in concentrated form needs a lot of preparation work before application. If you are not an automobile expert, I would recommend you buy a premixed coolant for maximum ease of use.

All-Weather Protection

You must look for an all-in-one product that works best in all types of conditions. Advanced coolant formulas offer reliable antifreeze and anti-boiling performance. If you do regular off-roading you must look for a silicate-free formula so that the coolant can retain maximum water.

Rust And Corrosion Protection

In addition to freezing and boiling resistance, you should focus on protection against rust and corrosion. It is advised to buy coolant formulas that contain corrosion-resistant compounds.

Damage Protection

Chemicals in the components can damage the sensitive engine parts made of plastic or aluminum. To avoid damage it is advised to buy a product that is free of silicate, nitrites, and borates. Plus, you must apply the coolant at a proper concentration otherwise it will damage the engine parts.

Frequently Asked Questions

What Coolant Should I Use For My Jeep Wrangler?

If you own a jeep wrangler model later than 2013, you should look for OAT antifreeze or coolant products. For models before 2013 HOAT coolants are perfect. OAT coolants are dark green, red, blue, and bright red. While HOAT coolant usually comes in yellow, pink, or purple colors.

What Color Coolant Does A 2013 Jeep Wrangler Use?

Most of the Jeep Wrangler 2013 models work best with both HOAT and OAT coolants. The best coolant colors used in the jeep wrangler 2013 models are purple, yellow, red, or orange.

Can You Use Prestone Antifreeze In A Jeep?

Yes, Prestone coolants are the best option you can buy for a jeep wrangler. These coolants use patented antifreeze and anti-boil technologies and offer a wide compatibility band making them perfect for jeeps.

My Final Thoughts On Jeep Wrangler Antifreeze Coolants

In the end, it can be safely concluded that compatibility and formulation are the two crucial features you must consider while buying a new antifreeze product for your jeep. All the products reviewed above are tested for quality and performance but the three I liked most are:

• Mopar 68163849AB 10 Year/150,000 Mile Coolant for advanced OAT formulation, class-leading service life, and seamless compatibility with jeep wrangler jk.
• Zerex G05 Antifreeze/Coolant for premium quality virgin ethylene glycol composition, low pH and phosphate-free formula, and excellent anti-freeze protection.
• ACDelco GM Original EquipmentPre-Mix Engine Coolant for its impressive performance in extreme temperature conditions, phosphate-free formulation, and ability to resist corrosion.

It is highly recommended to buy a pre-diluted coolant to avoid quality issues later on. Dilution of this product needs sensitive measurement that you can’t handle if you don’t know much about automotive. A pre-mixed coolant gives you a ready-to-go experience.