All you need to know about Cooling System Additives – September 2021 Edition

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Looking to find the best Cooling System Additives?

We researched 21 Cooling System Additives, tested 14, and we have done 23 hours of research. The best Cooling System Additives doesn’t have to be complicated to be great. Our first pick is exactly that. No more, no less. It also costs less than any other products we tested.

The best

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

Intro

Everything you need to know about Cooling System Additives before getting yourself one! Learn about this product comparison that we made especially for you. You have a wide selection to choose from when you’re looking for a Cooling System Additives (size, brand, product’s solidity and reliability…). That’s why we created, for this type of item, a ranking based on the best value for money according to various brands and prices. We aim to help you find the Cooling System Additives that will meet your expectations and budget. You can learn about some presentation and/or functioning details thanks to Amazon customers who review the products featured on this comparison. This top 10 is regularly reworked to remain up-to-date and useful to you. Let’s find the Cooling System Additives that is just right for you!

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
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
SaleNo. 3
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 represents more than 10 years of experience in researching, testing, and writing about many subject. Our people are experts in all of their fields.
We alors spent 23 hours reading any article we could find on the internet and all the customer reviews at various retailer sites such as those of Amazon, Home Depot or Wallmart. We found many website that was a valuable resource with involved buying guides and detailed Cooling System Additives information.
As for me, I’m very familiar with the Cooling System Additives since I got it from 4 years.

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
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
SaleNo. 3
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
SaleNo. 4
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. 5
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. 7
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
No. 9
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)
SaleNo. 10
Surface Treatment by Laser-Assisted Techniques
  • Hardcover Book
  • English (Publication Language)
  • 178 Pages - 10/19/2020 (Publication Date) - Mdpi AG (Publisher)

How we tested

We search all the field to find the best Cooling System Additives and all the type for it and get the best alternatives, priced decently, and easy to use. After that we tested all the main parameters we use : These things can separate the great Cooling System Additives from the good.

  • Easy To use
  • Options
  • Quality
  • Longevity

How we picked

We search for all the field to find the best Cooling System Additives and all the type for it and get the best alternatives, priced decently, and easy to use.
The main parameters we use : These things can separate the bad Cooling System Additives from the good.

  • Price
  • Easy To use
  • Customer reviews
  • Quality
  • Longevity
  • Dimensions

Current Offers

SaleNo. 1
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
SaleNo. 2
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. 3
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
SaleNo. 4
Mishimoto MMRAD-CIV-01 Performance Aluminum Radiator Compatible With Honda Civic 2001-2005
  • Direct fit for the 2001-2005 Honda Civic w/ 1.7L engine
  • Overall Size: 26.9" x 17.9" x 2.07" / Core Size: 26" x 13.78" / Rows: 2
  • Inlet & Outlet: 1.1" / Core Thickness: 1.57" / Tank Wall Thickness: 0.08"
  • All-aluminum construction includes high-pressure rad cap and magnetic drain plug
  • Mishimoto Lifetime Warranty
SaleNo. 5
Surface Treatment by Laser-Assisted Techniques
  • Hardcover Book
  • English (Publication Language)
  • 178 Pages - 10/19/2020 (Publication Date) - Mdpi AG (Publisher)

Conclusion

As you may have seen, the best Cooling System Additives are not always the most expensive. We hope this top 10 has been a useful tool in your choice of Cooling System Additives. Your comments are welcome. This comparison is regularly updated, so you will always find the latest products on the market in this ranking.

Last update on 2021-09-22 at 08:23 / Affiliate links / Images from Amazon Product Advertising API

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