Regulate Engine Temperature with the Best Antifreeze

  1. Valvoline MaxLife Antifreeze
  2. Zerex Original Green 50/50 Antifreezea
  3. PEAK Antifreeze
  4. Rotella ELC Antifreeze
  5. Buyer's Guide

Antifreeze, or engine coolant, is a liquid solution designed to regulate engine temperature within a vehicle and wick away excess heat to the radiator. This auto maintenance product is used with internal combustion engines, although some engines require specialty formulas to comply with vehicle regulations, especially newer engines. Antifreeze is poured into the coolant chamber, typically found under a vehicle’s hood although often installed in different configurations based on the model of vehicle. The best antifreeze in 2022 products below were chosen based on their wide temperature range of performance, their compatibility with many car models and for their long service life.

Best Antifreezes of 2022 Reviewed in Detail

Valvoline MaxLife Antifreeze - Best Antifreeze Overall

The patented Alugard Plus technology used in Valvoline MaxLife allows this antifreeze to provide optimum engine cooling even when mixed with antifreeze of other colors. Instead of flushing all of the engine coolant, a car owner can top off their antifreeze with this formula and be confident that it won’t cause excessive corrosion, which sometimes happens when mixing incompatible formulas. At a 50 percent dilution with water, Valvoline MaxLife has a boiling point of 265 degrees Fahrenheit and a freezing point of -34 degrees Fahrenheit. Valvoline uses yellow dye for this antifreeze, which they choose for color compatibility with other brands. Valvoline recommends this brand for use with both gasoline and diesel engines.

Zerex Original Green 50/50 Antifreezea - Runner Up

Prestone Prime Antifreeze/Coolant offers superior long-lasting performance over many other brands. Cars and light-duty trucks using this formula are protected against engine overheating for 150,000 miles or 5 years. Prestone Prime is also useful for heavy-duty vehicles, such as RVs and tractor trailers. Although a 50 percent water dilution is recommended, Prime can be used at concentrations of 70 percent for protection between 276 degrees Fahrenheit and -84 degrees Fahrenheit. Long-lasting corrosion inhibitors in this antifreeze provides extra protection against rusting and water pump failure.

best antifreeze

PEAK Antifreeze - Honorable Mention

This antifreeze from PEAK provides engine protection in all vehicles manufactured in America, Europe or Asia. Car owners can perform a coolant flush and replace with PEAK Global LifeTime and not have to change the coolant again, when following proper maintenance. The PEAK formula is phosphate and silicate-free, making it capable of topping off older antifreeze without requiring a flush. The amber color of this formula keeps from discoloring other antifreezes when mixed, so that a car owner can know exactly what color antifreeze should go in the vehicle. This product comes pre-diluted at a 50 percent concentration for quick use. This brand is promoted by PEAK as the world’s only extended life antifreeze technology to be approved by original equipment manufacturers across the world, including Ford and Daimler-Chrysler.

Rotella ELC Antifreeze - Consider

Pennzoil Multi-Vehicle Extended Life Antifreeze is an ethylene glycol formula that offers universal compatibility with engine coolant systems for all cars and trucks. The service life of this product is rated at 5 years or 150,000 miles driven, requiring fewer changes. The chemicals used by Pennzoil for this engine coolant do not react corrosively with other antifreezes, which prevents problems from mixing or topping off old coolant, whether that coolant is conventional or an extended life formula. This antifreeze is given a slight yellow dye so it can be added to older antifreeze without changing the color drastically. This product has an extremely high boiling point of 345 degrees Fahrenheit for superior protection for all engine metals at high temperatures.

Buyer's Guide

Driving is only enjoyable and safe as long as your vehicle functions correctly and the engine does not fail to start or run. Perhaps one of the most essential things you should stay on top of is to check the condition of your engine coolant. Since you are searching for the best antifreeze and coolant to keep your engine cool and operating efficiently, we understand how difficult it is to choose the correct one.

But who says you have to do everything on your own? Below is a comprehensive shopping guide to assist you in determining which antifreeze is best for your automobile.

What are the factors to consider while buying an antifreeze?

The easiest way to guarantee that you get the correct sort of antifreeze for your automobile is to review your owner's handbook. But here are the most essential aspects to consider while shopping for the best antifreeze:

Ease of use

One factor to consider is how easy the antifreeze or coolant is to use. That is, whether it requires any previous preparation or may be poured directly into the cooling system from the container.

To give you an example, some antifreeze solutions are marketed as pre-diluted formulas with a 1:1 water-to-coolant ratio, whilst others are concentrated and require diluting at a specified ratio to function best for your automobile under certain conditions.

Temperature range

Another essential factor to consider when it comes to antifreeze is the temperature range that the engine will be operating in most of the time, which is primarily determined by the climate and weather conditions in your area.

Colder weather, for example, needs a greater concentration of coolant than water, in order to obtain more antifreeze and protect the engine from failing to start owing to the cold. If the temperature is really chilly, a suitable ratio might be 60:40, or even 70:30.

Warm and tropical areas, on the other extreme, may get by with a typical 50:50 combination of coolant and water.

What are the features to look for in an antifreeze?

Corrosion inhibitors

Corrosion inhibitors should ideally be included in the formulation you're purchasing. This will preserve your engine from excessive wear, improve your vehicle's efficiency, minimize leaks, and cleanse metal parts. Choosing one with corrosion inhibitors will save you money over the long term and may even extend the life of your vehicle’s cooling system!

Shelf life

Although you may feel inclined to stockpile the best antifreeze coolants you can find, keep in mind that this isn't an item that will last a lifetime. It has a storage life, which is why you should search for one that will last you for a long time.

Some of the antifreeze, for instance, will last 3 years, whereas others endure up to ten years. Before you buy something, double-check the product details to be sure.

Vehicle compatibility

Your car needs an anti-freeze liquid that is compatible with it. Using the incorrect type, even if it is less expensive and more readily accessible, will cost you hundreds, if not thousands of dollars in repairs.


Undoubtedly, examining the price tag is critical. When you consider how long cooling fluid lasts, it's typically not that costly. Regardless, you’ll want to keep your spending to a minimum, but only within reason. You don't want to gamble with the mechanical health of your automobile.

What are the types of antifreeze available in the market?

You may select from a variety of antifreeze brands on the market, but that's not all. Before you browse through all of these businesses and their many items, you must first choose which type you require.


This is a product that contains concentrated antifreeze, as the name implies. Typically, it’s prepared by diluting it with a 50/50 combination of distilled water and antifreeze, but this isn't always the case. Read the directions carefully to learn how to combine the liquids appropriately.


Antifreeze that has been pre-mixed or diluted falls into the second type. Many drivers like this choice since it allows them to easily and quickly top off the coolant tank.

Inorganic acid technology

Inorganic acid technology (IAT) antifreeze is generally acceptable for older cars. IAT antifreeze only has to be replaced every 30,000 miles or 2 years in vehicles.

Having said that, unless you have an older vehicle, you are unlikely to use IAT antifreeze. This is mostly due to the fact that, unlike the other kinds, it lacks corrosion inhibitors for contemporary engines.

Organic acid technology

This is primarily utilized in automobiles that were built after 1996 and aren't compatible with IAT. OAT antifreeze has corrosion inhibitor qualities that preserve the engine from wear and tear, and it is devoid of harmful silicates and phosphates.

Hybrid organic acid technology

Another form is known as hybrid organic acid technology (HOAT), and it's commonly seen in antifreeze for contemporary automobiles equipped with aluminum engine blocks and radiators. It's generally a combination of silicates and OAT corrosion inhibitors, and common in European cars. HOAT antifreeze lasts a long time and only has to be replaced every 10 years or 180,000 miles.

Best Antifreeze FAQs

Q: When antifreeze is combined with oil, what happens?

A: If you've unintentionally spilled oil in your cooling system, get it flushed as quickly as possible by a professional. The solution can cause damage to your vehicle’s engine.

Q: When antifreeze boils, what must I do?

A: Never attempt to open a hot cooling system. Even under normal operating circumstances, the cooling system contains hot, pressurized coolant that can cause instant scalding and medically significant burns upon contact with your skin. Call a professional for assistance.

Q: How do you check the antifreeze level?

A: Always inspect your vehicle’s cooling system before it has had a chance to warm up. As noted above, you should never attempt to gain access to the cooling system when it’s hot. Most vehicles have a translucent coolant reservoir that displays a “full” or “max” line. It's time to top up the fluid if it doesn't reach the line.

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