The 10 Best Cooling System Additives to Buy – October 2021 Review

Looking for the best Cooling System Additives?

We did 10 hours of research and testing 7 products to create this review. We believe the best Cooling System Additives doesn’t have to be the most sophisticated to be exceptional. Our product selection lives up to its promise. Many different criteria were used for this comparison to be more relevant and more precise. Now discover our comparison !

TOP 10

No. 1
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
No. 2
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
SaleNo. 3
Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz.
449 Reviews
Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz.
  • Replaces fluorescent green-colored V119 premium antifreeze/coolant meeting Ford specification ESE-M97B44-A
  • Replaces yellow-colored Motorcraft gold antifreeze/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
  • Genuine OEM
No. 4
Hayden Automotive 526 Remote Transmission Oil Cooling System
  • Plate and fin design
  • Self contained cooler/fan combination for remote mounting
  • Ultra compact design
  • Advanced stator fan design to evenly distribute cooling
  • Can be operated with thermostatic or manual controls
No. 5
Red Line (80204) Water Wetter - Coolant Additives - 12 Oz Bottle
1,960 Reviews
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
SaleNo. 6
Bar's Leaks Cooling System Repair , grey , - 16.9 oz -1150
  • Stops Cooling System Leaks
  • Compatible with all brands of anti-freeze including conventional green or blue and extended life red/orange or yellow (OAT/HOAT) coolant
  • Premium Carbon Fiber Formulation For Extended Protection
  • Country Of Manufacture: United States
SaleNo. 7
Bar's Leaks J-100 DiFM Cooling System Treatment - 5 Grams
  • Seals internal, external and coolant to oil leaks
  • Stops radiator tank seal leaks
  • Inhibits the formation of rust and scale
  • Helps control electrolysis and helps neutralize pH imbalance
  • Lubricates water pump seal
No. 8
Subaru SOA635071 OEM Coolant System Conditioner
  • Subaru Genuine Coolant System Conditioner
  • Specifically formulated for Subaru vehicles
  • Helps prevent corrosion in your Subaru's cooling system
No. 10
FAP Citroen/Peugeot ELM327 OBD2
  • Only for Peugeot and Citroen vehicles
  • Read real time information from your Engine Management ECU
  • Faults reading and clearing
  • Check condition of DPF/FAP and additive level
  • Testing of actioners like engine fan, EGR, fuel pump, air mixer...
  • English (Publication Language)

Intro

Find out where you can get the best Cooling System Additives! Making your choice among different Cooling System Additives on the market is not always easy. It can also turn into a daunting task because of the many websites offering the same type of product. On this page, we will give you a comparison to get the best value for your money. This complete ranking provides you with a comprehensive view and allows you to pick the best Cooling System Additives. You will find a broad selection of models, brands, and prices. Whether you want to save money or find out what is the best Cooling System Additives for you, our comparison will help you make the right choice. To keep things practical and easy to understand, we created a Top 10 of the best Cooling System Additives. You won’t have to choose your products at random anymore.. On your marks! Compare! Pick your Cooling System Additives!

Our Picks

No. 1
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
No. 2
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
SaleNo. 3
Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz.
449 Reviews
Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz.
  • Replaces fluorescent green-colored V119 premium antifreeze/coolant meeting Ford specification ESE-M97B44-A
  • Replaces yellow-colored Motorcraft gold antifreeze/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
  • Genuine OEM

Why you should trust us?

This guide is the result of more than 10 years of experience in researching, testing, and writing about various subject. Our team members are experts in their fields. We spent 10 hours reading all the articles we could find online and all the customer reviews on various retail websites such as Amazon, Ebay, Alibaba or Flipkart. We also found many websites that provided valuable resources such as purchasing guides and detailed information on Cooling System Additives. To help you make the best choice among the hundreds of products available, we decided to offer you a comparison in order to find the best value for your money. We searched different fields to find the best Cooling System Additives. We also looked at the best alternatives for reasonably priced and easy to use products. After we determined our main parameters, we conducted our research and tests.These parameters separate a great product from an average one:

  • Price
  • Ease of use
  • Customer reviews
  • Quality
  • Durability

Conclusion

We hope this ranking was helpful to you in choosing the Cooling System Additives that best suits you. We made it thoroughly and we will update it regularly, so that you get a real-time comparison. Our goal is to allow you to compare models and prices, to get an overview of what the market has to offer. We are here to make it easier for you and to make informed decisions. If our ranking gave you a clearer view on the different products available, feel free to let us know in the comments section. We will happily read them.

Click to rate this page !
Thanks !

Last update on 2021-10-18 at 06:23 / Affiliate links / Images from Amazon Product Advertising API