Best Coolants for Automobiles 2017 – Buyer’s Guide and Reviews


Updated 2017: By reading this guide, we will show you the best coolants to buy. In the early days, automobile’s cooling system depended on air cooling and water-cooled engines. Water makes a good cooling agent but it is not suitable for vehicles during winter. Thus, the introduction of the use of antifreeze in the market is provided herein. With the different varieties of cars, engines, motors out there, one can go wrong in choosing the right cooling and antifreeze solution.

Antifreeze is the term used to pertain to products that provide protection against freezing. It prolongs the vehicle’s life by lowering the freezing point of the water in the engine. Adding the compound to the water of your engine’s cooling system keeps the water from freezing during cold seasons and coolant raises its boiling point to keep it from overheating in extreme temperatures. This protects your engine from corrosion and rust which causes serious damage to the metals of the radiator and its other components.

Selection of the proper fluid can be determined by the environmental factors where the engines are used and the fluid’s interaction with the components that comprise the engine. Basically, the fluid must have the ability to remain a fluid during engine operation in cold weather conditions and must resist the tendency to overheat and form vapors to maintain its ability to transfer heat in extremely hot temperatures.

In cases where the engine is exposed to long periods of extreme cold, the cooling fluid needs to remain liquid to function properly, thus its “anti-freeze” qualities. In instances where the equipment is used in tropical or hot climates, the fluid should have a cooling property to protect the engine. Although, the make and model of the cars/vehicles should also be considered as many modern cars manufactured after 1998 requires fluids that utilize silicate-free, organic acid (OAT) technology while older transportation vehicles require more traditional and standard types that are not OAT-based and does not contain silicate.

Today, the majority of the manufacturers are now using glycols as engine coolants, mainly, Ethylene Glycol (EGW), which is more cost-efficient than Propylene Glycol (PGW). Propylene Glycol (PGW) often contains silicate based rust inhibitors that protect heat transfer surfaces.

 

Best Coolant and Antifreeze To Buy (Top 3 Picks)

Fuel Injector Cleaners Name:Price:Size: 
 

Prestone Extended Life
Editor's Choice
 

  • $13-$15

 

  • 1 Gallon
 

Click HERE For Price!
 

Zerex G-05
 

  • $13-$15

 

  • 1 Gallon
 

Click HERE For Price!
 

Prestone Dex-Cool
 

  • $17-$22

 

  • 1 Gallon
 

Click HERE For Price!


NOTE: In addition to a properly cooled engine, there are other things to keep it running efficiently. We have buyers guide for the best fuel system cleaners which clean out any carbon deposits. In addition to that, we have also buyers guide for the top spark plugs and best-rated fuel octane boosters. Each of those things ensures proper spark, compression, and ignition. All equal to higher fuel efficiency.


Picking out the best antifreeze product among all the others in the market for your automobiles needs more than just a little research. You need to be attentive to the specific advantages and disadvantages of each product so as not to do more damage than good to your vehicle. Selecting the most fitting antifreeze for your car can be difficult, especially if you don’t have enough background on what the suitable agent is for your automobile. It might be hard to choose between the concentrated form and the readily mixed solution.

Careful selection of the options needs to be done, either choosing the ready mixed or the diluted formulation, which is also commonly and normally used straightaway for top-ups and replacement, or the concentrated one which still needs to be diluted with water, usually at 50:50 ratio. Just make sure to check the product’s instructions before using it on your vehicles. So here is a guide to getting an overview of the best coolant reviews in the market to assist you in picking the right one for your engine.

There are many products in the market but here are the top 5 highly-recommended brands to choose from. Each of which recognizes the different needs and preferences of the consumers.

Coolant and Antifreeze To Buy in 2017 (Top 5 Reviews)

  1. Prestone AF2100 Extended Life 50/50 – Best Coolant To Buy (Editors Choice)

Prestone

Prestone

Prestone AF2100 Extended Life 50/50 Antifreeze is formulated for cars of all makes and models and light-duty trucks especially American, Asian and European brands. It is compatible with any antifreeze/coolant, regardless of the color. It contributes to the vehicle’s long engine life that is good for up to 5 years or 150,000 miles which meets or exceeds American Society for Testing and Materials (ASTM) D3306 and D4985 for protection against corrosion because it is fortified with Cor-Guard inhibitors.

This prediluted agent not only helps with the efficiency of the car’s cooling system but also protects your engine from extreme temperatures, thus, preventing rust and the spread of corrosion of your engine’s cooling system metals which includes aluminum. It is a combination of 50 percent antifreeze for temperature control, effective heat transfer and corrosion protection, and 50 percent demineralized water for heat transfer protection.

Pros:

  • Can be used for all-terrain vehicles and utility trucks, such as cars, SUV’s and the likes
  • Can be used in snowmobiles and personal watercraft (PWC)
  • Can also be used for different types of motorcycles and scooters such as street-sport, off-road, street-cruiser, street-touring motorcycles
  • Best coolant that is compatible with other coolants
  • Comes with a decent price compared to other products
  • Prediluted
  • Highly-rated in terms of quality
  • Manufactured by Prestone, the leading and trusted company who first introduced the best coolant or anti-freeze for automobiles
  • Cheaper than most products of the same kind available in the market

Cons:

  • Can’t be shipped to California due to the product containing chemicals known to the State of California to cause cancer, birth defects and other reproductive issues.
  • Not eligible for international shipping

>>> Check Price >>> Reviews

 

  1. Zerex G-05 AntiFreeze/Coolant

Zerex

Zerex

The fully formulated Valvoline Zerex G-05 Antifreeze/Coolant is an ethylene glycol-based fluid which was developed to be compatible with both gasoline and diesel engines, including passenger cars, light trucks, and heavy-duty vehicles. It is designed to protect all cooling system metals, which also includes aluminum, from corrosion because of its low-silicate, reduced pH formulation, and its added phosphate-free European technology while its high-quality defoamer system safeguards the vehicle’s hoses and other plastic parts.

This is the best coolant for diesel engines that contains a nitrite containing agent intending to keep the diesel engine cylinder liners from cavitation. And because of its deposit control additives, it protects the engine parts from hard water deposits and scale. When diluted with 50% water, it preserves the engine components from winter freezing and summer boil over.

For optimum performance, a 50 percent to 70 percent concentration range is recommended. The American Society for Testing and Materials (ASTM) and other tests concluded that the formulation has a high-performance corrosion inhibitor package and for optimum performance, it should be used at 50 percent to 70 percent concentration range.

Pros:

  • This best coolant can be used for all-terrain vehicles and utility trucks, such as cars, SUV’s, passenger vehicles, light-duty trucks and the likes
  • Can be used in snowmobiles and personal water craft (PWC)
  • Can also be used for different types of motorcycles and scooters such as street-sport, off-road, street-cruiser, street-touring motorcycles
  • Compatible with other premium brands commonly available in the market
  • Has both the best antifreeze and coolant properties for extreme cold and hot weather conditions
  • Approved for Ford, Chrysler, Mercedes
  • Phosphate-free
  • Prediluted
  • Highly rated in terms of quality
  • Cost-friendly

Cons:

  • Harmful or fatal if ingested
  • May cause eye irritation
  • Not eligible for international shipping

>>> Check Price >>> Reviews

 

  1. Prestone AF888 Dex-Cool Antifreeze

Prestone

Prestone

Prestone AF888 Dex-Cool Extended Life Antifreeze/Coolant (full strength) is highly recommended and developed for all vehicles that require Dex-Cool fluids, especially cars and light-duty trucks with aluminum radiators using extended life coolant.

This extends the life of your engine up to 5 years or 150,000 miles because of its patented formulation which has a condensed blend of inhibitors that endures extended engine performance, and extreme temperatures. It has a concentrated formula that aids the vehicles from rust and corrosion protection, as well.

Pros:

  • Can be used for all-terrain and utility vehicles, such as cars, SUV’s and the likes
  • Can be used in snowmobiles and watercraft
  • Can also be used for different types of motorcycles and scooters such as street-sport, off-road, street-cruiser, street-touring motorcycles
  • Highly rated Dex-Cool fluid
  • Cheaper than most Dex-Cool products available online
  • Highly-rated in terms of quality
  • Manufactured by Prestone, the leading and trusted company who first introduced this best Antifreeze/Coolant for automobiles

Cons:

  • Harmful or fatal if ingested
  • Not eligible for international shipping

>>> Check Price >>> Reviews

 

  1. Hy-Per Lube Super Coolant

Hy-Per Lube

Hy-Per Lube

The high-performance Hy-Per Lube Super Coolant is formulated with premium wetting agents which decrease the surface tension of the water coolant combination, therefore, allowing it to deeply seep into the metal surfaces of the cooling system of your gasoline and diesel engines. This allows the heat transfer areas of the cooling system to dissipate heat more, thus, reducing the engine temperature up to 20 degrees Fahrenheit and prevents the engines from overheating.

It also contains corrosion protection factor to protect all the metals found in your vehicle’s cooling system, including aluminum, from rust, corrosion, and electrolysis. It is also designed to protect your car’s water pumps by lubricating the seals. For best results, it is recommended to re-treat vehicles after one year.

Pros:

  • Permits safe advancement of ignition timing that enables more horsepower for your cars
  • Reduces heat transfer during high performance and high load engines
  • Best antifreeze coolant that is compatible with all types of antifreeze
  • Dyno-testing concluded that Hy-Per Lube reduces best coolant temperatures
  • Can treat 12 to 20-quart cooling systems
  • Cheapest among all the brands in the market
  • Facilitates quicker engine warm-up during cold winter conditions

Cons:

  • Contains alkaline materials
  • May be harmful to eyes and skin
  • Harmful or fatal if ingested

 

  1. Pentosin Coolant/Antifreeze

Pentosin

Pentosin

Pentosin Pentofrost Coolant/Antifreeze is a high premium ethylene glycol-containing product, compatible with the original equipment (OE) vehicle manufacturer’s warranty. It works well with German and European engines such as Volkswagen, Audi and Toyota. This product is highly recommended because it is silicate-free which works best with clean water, either distilled, deionized or reverse osmosis purified water.

Pros:

  • Can be used for all-terrain and utility vehicles, such as cars, SUV’s and the likes
  • Can be used in snowmobiles and watercraft
  • Can also be used for different types of motorcycles and scooters such as street-sport, off-road, street-cruiser, street-touring motorcycles
  • Best for older German and European vehicles
  • Highly-rated in terms of quality
  • Comes with a reasonable price
  • Manufactured by Preston, the leading and trusted company who first introduced Antifreeze/Coolant for automobiles

Cons:

  • Labelled with California’s Proposition 65 warning stating that this product contains compounds that may cause cancer, birth defects, and other reproductive harm
  • Contains between 30 and 50 parts per million (ppm) denatonium benzoate

 

NOTE: Just like frequent coolant flushes are crucial, so are oil flushes (more so than the former). Have a look at the top synthetic blend oils, top-rated synthetic oil filters, and plastic oil drain pans. Each link will take you to a buyer’s guide.

Tips For Choosing the Right Antifreeze/Coolants for Your Vehicle

You checked your hood and up realized that your coolant level is down. Good thing, there are auto parts stores all around the area where you can pick up a jug of that this best antifreeze that you need. But when you get to the part of deciding which one should you choose, you end up scratching your head because of the options on the store shelves, with the variety of colors and brands. So allow us to help you decide by considering these factors:

Do’s:

  • Consider the weather conditions within the next few months. Remember that the cooling system of your engine is also affected by the temperature of the environment where you use your vehicle. If winter is coming, then choose a formulation that has an extended-life of the best antifreeze for diesel engines factor to keep your engine’s water from freezing. During summertime, consider a product that has lasting cooling properties which will keep your engine from overheating.
  • Remember that it is not about the color of the fluid. There are a few cases where choosing the wrong product can do more harm than good to your engine. The key ingredients are the rust and corrosion inhibitors, commonly silicates for aluminum protection.
  • Carefully review the formulation of that product that you’re checking. Remember that there are concentrated solutions and there are those that are prediluted or ready-mix. Make sure that you read the instruction manual on how to use the product, according to the manufacturer’s preference.

 

Don’ts:

  • Don’t wait for coolant to run low. Check the levels regularly. Running out of the fluid will surely have a major impact on your engine’s condition if it does not end its life. Don’t forget to carry a backup container or spare jug.
  • Don’t wait for your engine to overheat or for the temperature to rise up before deciding on filling it with coolant.
  • Don’t dilute the solution with ordinary tap water. It is recommended to mix the fluid with de-ionized or distilled water. Always follow the correct ratio of the fluid and the water mixture
  • Don’t forget periodic fluid analysis for your engine’s cooling system.
  • Don’t mix colors and types, if possible. The typical green coolants are seen in older cars are compatible with its steel parts while others are meant for aluminum and other alloys.

 

As a responsible car-owner, you should be aware of the importance of purchasing and using the correct engine fluids such as antifreeze/coolants. With modern day’s innovation, manufacturers have been creating formulas for the specific needs of the different engine types in the market. However, choosing the correct one is not as easy as one-two-three for most. Always remember that cars are not inexpensive.

Choosing the wrong instead of the best coolant may be the end of the road for your beloved vehicle. So pick out the best engine coolant for your car, opt for one that’s highly-rated by many users from a trusted and recommended manufacturer.

Video: Flushing Your Cooling System