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The 10 Best Cooling System Additives to Buy – September 2021 edition

Looking for the best Cooling System Additives?

Discover now our comparison of the best Cooling System Additives. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Cooling System Additives are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Cooling System Additives in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

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. 8
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. 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)

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We do everything we can to offer you relevant comparisons, based on various criteria and constantly updated. The product you are looking for is probably among these pages. A few clicks will allow you to make a fair and relevant choice. Don’t be disappointed with your purchases made on the Internet and compare the best Cooling System Additives now!

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Last update on 2021-09-17 at 13:18 / Affiliate links / Images from Amazon Product Advertising API