Best Coolant Additive To Run Cooler in 2023 (Review)

Sometimes it might be quite difficult to find the best coolant additive to run cooler. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this coolant additive to run cooler buying guide.

Our Favorite Picks:

Best Coolant Additive To Run Cooler Reviews:

Bestseller No. 1
Hy-Per Lube HPC100-3PK High Performance Super Coolant - 16 oz, (Pack of 3)
  • Reduces Engine Cylinder Heat Temperatures
  • Allows Safe Advancement of Ignition Timing Resulting in More Horsepower
  • Prevents Overheating in High Performance and High Load Engines
  • Complete Protection from Rust, Corrosion and Electrolysis
  • Compatible With All Types of Antifreeze, does not contain ethylene glycol
Bestseller No. 2
VP Racing Fuels Madditive Cool Down - Radiator Systems Temperature Decrease 16 Ounces for All Radiators. Decreases Engine Temps up to 30 Degrees
  • Cool Down coolant additive improves the performance of coolant and is safe for all radiator systems. It's ideal for racing, street, RV and tow vehicle applications
Bestseller No. 3
Red Line (80204) Water Wetter - Coolant Additives - 12 Oz Bottle
  • Cutting edge technology - We at red line created this industry, pushing bubbles out of the way to ensure efficient & effective engine cooling
  • Ultimate cooling performance - Coolant additive with a unique agent that lowers temperatures by reducing and eliminating bubbles or vapor barrier that form on hot metal surfaces
  • Perform & protect - Waterwetter protects from rust & corrosion, allowing the use of straight water in racing or reduced antifreeze levels in warm climates
  • Easy to use - Use one bottle for most cars & light trucks, treats 3 to 5 gallons. Larger cooling systems should use 2 bottles; Small cooling systems should use 1oz per quart
  • Why red line - Established in 1979, red line products perform & protect better than any on the market. No compromises
Bestseller No. 4
Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive - 12 oz.
  • OPTIMIZES PROTECTION
  • Prevents erosion and electrolysis
  • Compatible with all coolants types
  • Contains lubricants to protect the water pump
  • Fit type: Vehicle Specific
Bestseller No. 5
Engine Ice TYDS008 High Performance Coolant - 0.5 Gallon
  • Engine Ice hi-performance coolant is biodegradable, phosphate free and non-toxic, typically reduces operating race temperatures and effectively keeping boil over temperatures to 256° Fahrenheit or less and freeze-up protection to -26° Fahrenheit
  • With an average reduction in operating temperatures of 10° Fahrenheit - 20° Fahrenheit Engine Ice is perfect for racing or street, motorcycle or auto, ATV or snow machine
  • Engine Ice hi-performance coolant is legal in CCS and ASRA road racing and permitted at many tracks around the world. Easy to Use – Premixed with deionized water for out-of-the-bottle use.
  • Engineered to keep your operating temperatures at optimum performance to not lose power through excess heat; Engine Ice is safe for aluminum and most all metals
  • Uses propylene glycol, which has been proven to eliminate water pump gasket and seal failures; it has also shown in high load, high stress conditions to reduce operating temperatures more than standard coolants
Bestseller No. 6
Motorcraft VC8 Diesel engine coolant additive - 1 Pint(473 ml)
  • In all heavy-duty, diesel engine cooling systems equipped with green-colored Motorcraft Premium Engine Coolant meeting Ford Specification ESE-M97B44-A
  • In all heavy-duty, diesel engine cooling systems equipped with yellow-colored Motorcraft Premium Gold Engine Coolant meeting Ford Specification WSS-M97B51-A1
  • Designed to replace additives depleted between coolant change-outs
  • Now dyed yellow to eliminate engine coolant color change when mixing
Bestseller No. 7
Lubegard 96430 Heavy Duty 2-in-1 Coolant Treatment, 32 fl. oz.
  • Provides 2-in-1 corrosion protection and temperature reduction
  • Provides complete protection from corrosion and chemical electrolysis
  • Protects wet sleeve cylinder liners from cavitation erosion
  • Prevents build-up of scales, deposits and slime that cause overheating
  • Significantly extends life of water pump impellers and seals
Bestseller No. 8
CORSAIR Hydro X Series, XL8, Performance Coolant, 1L, Clear
  • Choose from a stunning range of vibrant colors to complete your custom cooling system and enhance your build.
  • Long lasting pre-mixed performance coolant is ready to go right out of the bottle, with no additional additives or inhibitors required.
  • Protects copper, brass, and nickel with advanced corrosion.
Bestseller No. 9
VP Racing Fuels Stay Frosty Race-Ready Coolant 64 Ounces for High-Compression, High-Heat Engines. Reduce Engine Temps by Up to 30 Degrees.
  • Designed for high-compression/high-heat racing engines. Contains specialized blend of heat transfer agents to improve coolant’s heat transfer ability away from high temperature cylinder heads
  • REDUCES ENGINE TEMPS up to 30°F compared to conventional glycol-based coolant. Increases density of the air/fuel mix & allows ignition timing to safely advance without the threat of detonation
  • RACE READY is 100% water-based and biodegradable. It's ready-to-use straight from the container. You can confidently go club racing at your local track because it contains no glycol
  • MAXIMIZES horsepower and torque. Non-toxic formula blended with chemically-stable reverse osmosis water. R.O. rejects heavy metals, dissolved organics, and other contaminants that dissolve in water
  • LUBRICATES vital system components and protects sensitive aluminum alloys from corrosion. Meets ASTM D3306 corrosion standards. Safe for all radiator systems
Bestseller No. 10
Valvoline Multi-Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA
  • MaxLife Antifreeze is the only antifreeze to contain Alugard Plus, a special additive that allows these chemistries to work together to provide maximum protection..Fit Type: Universal
  • Lubricates gaskets and seals
  • Long Life Formula
  • For all makes and models
  • Helps protect against cold weather freeze-ups and hot weather boil-overs
Bestseller No. 11
Design Engineering 040200 Radiator Relief Coolant Additive for All Water Cooled Engines, 16 oz.
  • No mixing required; just add to cooling system and reduce engine operating temperature up to 30 degrees Fahrenheit
  • Formulated with a corrosion inhibitor and reduces pre-existing scale build-up
  • For use in all water cooled engines
  • Compatible with water and all anti-freeze mixtures
  • Safe with all alloys - 100% biodegradable, non-corrosive and non-toxic additive
SaleBestseller No. 12
Red Line with Water Wetter 1/2 US Gallon (80205)
  • Convenient, pre-mixed coolant for motorcycles, ATVs, karts, etc.-pour and go!
  • Blended with purified, deionized water and proper WaterWetter percentage
  • Reduces rust, corrosion and electrolysis, cleans and lubricates water pump seals
  • Compatible with all antifreeze and coolant
  • Satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes
Bestseller No. 13
Mishimoto - MMRALC Liquid Chill Radiator Coolant Additive
  • Formulated to prevent future corrosion and reduce existing build-up
  • Decreases high coolant temperatures and does not require mixing
  • Net Weight: 4 fl oz. / Note: Non-corrosive 100% recyclable
  • Truck & SUV: 2 bottles / Sport Compact Cars: 1 bottle / ATV & Dirt Bike: 1oz per qt
  • Mishimoto Lifetime Warranty
SaleBestseller No. 14
Red Line Water Wetter 12 oz (Pack of 2)
  • Convenient, pre-mixed coolant for motorcycles, ATVs, karts, etc.-pour and go
  • Blended with purified, deionized water and proper WaterWetter percentage
  • Reduces rust, corrosion and electrolysis, cleans and lubricates water pump seals
  • Compatible with all antifreeze and coolant
  • Satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes
SaleBestseller No. 15
Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz.
  • For use on certain limited-slip differentials to reduce chatter and hypoid gear noise levels
  • Use according to owner guide recommendations
  • Formulated for automotive use
  • Added to lubricants to reduce the surface friction of the lubricated parts

Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API

How to find the best coolant additive to run cooler?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best coolant additive to run cooler for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good coolant additive to run cooler recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the coolant additive to run cooler need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for coolant additive to run cooler to find what you’re looking for:

Brand

In some cases, the brand of coolant additive to run cooler is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given coolant additive to run cooler are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about coolant additive to run cooler are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare coolant additive to run cooler quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best coolant additive to run cooler can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.