Best Cooling System Additives - Buying Guide
Last Updated: 05/27/2024
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Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive - 12 oz.
Asin: B000BRGAJ2 | Model: ROY01600 | PartNumber: ROY01600 | Ean: 0641330016004 | UPC: 641330016004
Features
- OPTIMIZES PROTECTION
- Prevents erosion and electrolysis
- Compatible with all coolants types
- Contains lubricants to protect the water pump
- Fit type: Vehicle Specific
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Compatible With All Coolants Types.
Fit Type: Vehicle Specific.
Contains Lubricants To Protect The Water Pump.
Prevents Erosion And Electrolysis.
Brand: Royal Purple | Manufacturer: Royal Purple
Dimensions: 7.50 x 3.75 x 1.14 inches | Weight: 0.75 Pounds
See On Amazon #2
Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz., 2 count.
Asin: B07TVKSCXN | Model: VC-8 | PartNumber: VC-8 | Ean: 0031508379510 | UPC: 031508379510
Brand: Ford | Manufacturer: Ford
Weight: 1.00 Pounds
Warranty: Ford Limited Warranty
See On Amazon #3
Red Line (80204) Water Wetter - Coolant Additives - 12 oz Bottle
Asin: B000CPI5ZK | Model: RED80204 | PartNumber: RED80204 | Ean: 0172303062310, 0191215034611, 0182682082205, 7258006777089, 0685650362779, 0083522802048 | UPC: 083522802048, 685650362779, 182682082205, 191215034611, 172303062310
Features
- Unique agent for cooling systems that doubles the wetting ability of water
- Rust and corrosion protection allows for use of straight water in racing or reduced antifreeze levels in warm climates
- Improves heat transfer and reduces cylinder head temperature
- Use one bottle for most passenger cars and light trucks, treats 3 to 5 gallons or 13.2 to 15.9 liters, vehicles with larger cooling systems should use two bottles, small cooling systems should use 1oz (3 to 4 capfuls) per quart
- 12 Ounces
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Improves Heat Transfer And Reduces Cylinder Head Temperature.
12 Ounces.
Use One Bottle For Most Passenger Cars And Light Trucks, Treats 3 To 5 Gallons Or 13.2 To 15.9 Liters, Vehicles With Larger Cooling Systems Should Use Two Bottles, Small Cooling Systems Should Use 1Oz (3 To 4 Capfuls) Per Quart.
Rust And Corrosion Protection Allows For Use Of Straight Water In Racing Or Reduced Antifreeze Levels In Warm Climates.
Brand: Red Line | Manufacturer: Red Line
Dimensions: 8.50 x 11.00 x 9.00 inches | Weight: 0.75 Pounds
Warranty: Limited Manufacturer
See On Amazon #4
Red Line 80204 Engine Coolant Additive Supercool with Waterwetter - 12 Ounce (2 Pack)
Asin: B00NQ9STKA | Ean: 0685650339351, 0737534816370 | UPC: 737534816370, 685650339351
Features
- Unique agent for cooling systems that doubles the wetting ability of water
- Rust and corrosion protection allows for use of straight water in racing or reduced antifreeze levels in warm climates
- Improves heat transfer and reduces cylinder head temperature
- Use one bottle for most passenger cars and light trucks, treats 3 to 5 gallons or 13.2 to 15.9 liters, vehicles with larger cooling systems should use two bottles, small cooling systems should use 1oz (3 to 4 capfuls) per quart
- 12 Ounces (2 Pack)
- See more on Amazon...
Improves Heat Transfer And Reduces Cylinder Head Temperature.
12 Ounces (2 Pack).
Use One Bottle For Most Passenger Cars And Light Trucks, Treats 3 To 5 Gallons Or 13.2 To 15.9 Liters, Vehicles With Larger Cooling Systems Should Use Two Bottles, Small Cooling Systems Should Use 1Oz (3 To 4 Capfuls) Per Quart.
Rust And Corrosion Protection Allows For Use Of Straight Water In Racing Or Reduced Antifreeze Levels In Warm Climates.
Brand: Red Line | Manufacturer: Red Line
Weight: 0.75 Pounds
See On Amazon #5
K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required
Asin: B001QT9KO6 | Model: ST5501 | PartNumber: ST5501 | Ean: 0812646010004, 5060002968017, 7262318311480 | UPC: 812646010004
Features
- Permanent Coolant Leak Repair: K-Seal s unique formula will seek out holes and cracks, and permanently seal them, with no adverse impact on the efficiency of your engine cooling.
- Versatile Usage: Fixes cracks and leaks in the radiator, head gasket, freeze plugs, cylinder heads, heater core, water pump casing and engine blocks
- Universal Solution: This coolant stop leak is universally applicable. It can be used with all types of antifreeze, making K-Seal an essential tool for any vehicle owner
- No Draining or Flushing: K-Seal coolant leak repair is easy to use. It eliminates the need for draining or flushing, making it a convenient solution. Just shake, pour and go.
- Effective Cooling: The K-Seal 8 fluid ounce bottle is effective up to 20 quarts of cooling capacity
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Universal Solution: This Coolant Stop Leak Is Universally Applicable. It Can Be Used With All Types Of Antifreeze, Making K-Seal An Essential Tool For Any Vehicle Owner.
Effective Cooling: The K-Seal 8 Fluid Ounce Bottle Is Effective Up To 20 Quarts Of Cooling Capacity.
No Draining Or Flushing: K-Seal Coolant Leak Repair Is Easy To Use. It Eliminates The Need For Draining Or Flushing, Making It A Convenient Solution. Just Shake, Pour And Go..
Versatile Usage: Fixes Cracks And Leaks In The Radiator, Head Gasket, Freeze Plugs, Cylinder Heads, Heater Core, Water Pump Casing And Engine Blocks.
Brand: K-Seal | Manufacturer: Solv-Tec
Dimensions: 6.00 x 7.87 x 2.00 inches | Weight: 0.60 Pounds
Warranty: When K-Seal makes a repair we guarantee it will be permanent
See On Amazon #6
Hy-Per Lube HPC100-3PK High Performance Super Coolant - 16 oz, (Pack of 3)
Asin: B07F13298S | Model: HPC100-3PK | PartNumber: HPC100-3PK
Features
- 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
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Prevents Overheating In High Performance And High Load Engines.
Compatible With All Types Of Antifreeze, Does Not Contain Ethylene Glycol.
Complete Protection From Rust, Corrosion And Electrolysis.
Allows Safe Advancement Of Ignition Timing Resulting In More Horsepower.
First Available: 06/22/2018
Brand: Hy-Per Lube | Manufacturer: Hy-Per Lube
Weight: 1.00 Pounds
Warranty: See manufacturer
See On Amazon #7
Liqui Moly Radiator Stop Leak | 250 ml | Cooler additive | SKU: 20132
Asin: B076ZP45Z5 | Model: 20132 | PartNumber: 20132 | Ean: 4100420201325
Features
- LIQUI MOLY Radiator Stop-Leak completely seals such leaks immediately with ease
- Secures the combustion chamber from damages caused by coolant admission
- For all cooling water and heating systems with and without water filters
- LIQUI MOLY Radiator Stop-Leak completely seals such leaks immediately with ease
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For All Cooling Water And Heating Systems With And Without Water Filters.
Liqui Moly Radiator Stop-Leak Completely Seals Such Leaks Immediately With Ease.
Secures The Combustion Chamber From Damages Caused By Coolant Admission.
First Available: 10/30/2017
Brand: Liqui Moly | Manufacturer: Liqui Moly
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 0.70 pounds
See On Amazon #8
Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz.
Asin: B000NU3LPS | Model: VC-8 | PartNumber: VC-8 | Ean: 0031508421479 | UPC: 031508421479
Features
- Replaces fluorescent green-colored V119 premium antifreeze/coolant meeting Ford specification ESE-M97B44-A.Fit Type: Universal
- 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
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Designed To Replace Additives Depleted Between Coolant Change-Outs.
Genuine Oem.
Now Dyed Yellow To Eliminate Engine Coolant Color Change When Mixing.
Replaces Yellow-Colored Motorcraft Gold Antifreeze/Coolant Meeting Ford Specification Wss-M97b51-A1.
First Available: 02/25/2013
Brand: Ford | Manufacturer: Ford
Dimensions: 2.00 x 7.90 x 2.30 inches | Weight: 0.06 Pounds
See On Amazon #9
Lubegard 96001 Kool-It Supreme Coolant Treatment, 16 oz.
Asin: B0007ZDRXK | Model: 96001 | PartNumber: 96001 | Ean: 0083137960010 | UPC: 083137960010
Features
- Protects all metals from chemical electrolysis
- Provides unsurpassed cooling system corrosion protection
- Enhances heat transfer and reduces operating temperatures
- Prevents deposits which lead to overheating
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Enhances Heat Transfer And Reduces Operating Temperatures.
Prevents Deposits Which Lead To Overheating.
Provides Unsurpassed Cooling System Corrosion Protection.
Brand: Lubegard | Manufacturer: Lubegard
Dimensions: 2.10 x 8.10 x 3.10 Inches | Weight: 1.16 Pounds
See On Amazon #10
Subaru SOA635071 OEM Coolant System Conditioner
Asin: B00IGZP2UE | Model: SOA635071 | PartNumber: SOA635071 | Ean: 0826732934501 | UPC: 826732934501
Features
- LOWEST COST TO OWN
- Subaru OEM Coolant System Conditioner
- Part number: SOA635071
- Package Weight: 0.091 kilograms
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Part Number: Soa635071.
Package Weight: 0.091 Kilograms.
Subaru Oem Coolant System Conditioner.
Brand: Subaru | Manufacturer: Subaru
Dimensions: 0.00 x 0.00 x 0.00 inches
See On Amazon #11
VP Racing Fuels Cool Down 16 Oz Retail Bottle
Asin: B074VC2WWK | Model: 2085 | PartNumber: 2085 | Ean: 0846781003058 | UPC: 846781003058
Features
- 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
- Open the bottle and add contents straight into the radiator or coolant reservoir; Use as directed to prevent disruption of the freeze protection provided by traditional antifreeze containing glycol
- Coolant performance enhancer great for high-performance radiator systems
- Increases coolant flow for better heat transfer while lubricating all the vital components
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Coolant Performance Enhancer Great For High-Performance Radiator Systems.
Increases Coolant Flow For Better Heat Transfer While Lubricating All The Vital Components.
Open The Bottle And Add Contents Straight Into The Radiator Or Coolant Reservoir; Use As Directed To Prevent Disruption Of The Freeze Protection Provided By Traditional Antifreeze Containing Glycol.
Brand: VP Racing | Manufacturer: VP Racing Fuels
Dimensions: 0.00 x 0.00 x 0.00 Inches | Weight: 0.00 Pounds
Warranty: Parts
See On Amazon #12
Ultra1Plus Antifreeze Coolant - UltraCool Universal Premixed 50/50 - Ready to use - Gallon Orange
Asin: B0C7HKK6GM | Model: UAC5050OG | PartNumber: UAC5050OG | Ean: 0810111112567 | UPC: 810111112567
Features
- READY TO USE COOLANT: UltraCool Universal Antifreeze + Coolant PREMIXED 50/50 is a convenient, ready-to-use coolant for all major vehicle makes and models, providing hassle-free maintenance.
- UNIVERSAL FORMULA: This coolant is formulated to meet ASTM D 3306 and ASTM D 4985 standards, making it suitable for both automotive and heavy-duty diesel engines, ensuring versatile usage.
- SUPERIOR CORROSION PROTECTION: With its low silicate concentration and phosphate-free formula, this coolant offers excellent corrosion protection and boil-over prevention for your engine's longevity.
- DEFENDER OF ENGINE PARTS: The high-quality defoamer system in this coolant safeguards hoses, plastic components, and gaskets, ensuring compatibility and preserving the integrity of your engine.
- SUITABLE FOR NEW AND OLDER VEHICLES: Designed for modern engine model cooling systems, this coolant is also compatible with cars and trucks from 2000 and older, making it a versatile option for various vehicles.
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✅ Superior Corrosion Protection: With Its Low Silicate Concentration And Phosphate-Free Formula, This Coolant Offers Excellent Corrosion Protection And Boil-Over Prevention For Your Engine's Longevity..
✅ Suitable For New And Older Vehicles: Designed For Modern Engine Model Cooling Systems, This Coolant Is Also Compatible With Cars And Trucks From 2000 And Older, Making It A Versatile Option For Various Vehicles..
✅ Defender Of Engine Parts: The High-Quality Defoamer System In This Coolant Safeguards Hoses, Plastic Components, And Gaskets, Ensuring Compatibility And Preserving The Integrity Of Your Engine..
✅ Universal Formula: This Coolant Is Formulated To Meet Astm D 3306 And Astm D 4985 Standards, Making It Suitable For Both Automotive And Heavy-Duty Diesel Engines, Ensuring Versatile Usage..
Brand: ULTRA 1PLUS | Manufacturer: Ultra1Plus
Warranty: 2 YEAR
See On Amazon #13
Red Line 80204 Engine Coolant Additive Supercool with Waterwetter - 12 Ounce
Asin: B01LRHHL3I
Features
- Unique agent for cooling systems that doubles the wetting ability of water
- Rust and corrosion protection allows for use of straight water in racing or reduced antifreeze levels in warm climates
- Improves heat transfer and reduces cylinder head temperature
- Use one bottle for most passenger cars and light trucks, treats 3 to 5 gallons or 13.2 to 15.9 liters, vehicles with larger cooling systems should use two bottles, small cooling systems should use 1oz (3 to 4 capfuls) per quart
- 12 Ounces
- See more on Amazon...
Improves Heat Transfer And Reduces Cylinder Head Temperature.
12 Ounces.
Use One Bottle For Most Passenger Cars And Light Trucks, Treats 3 To 5 Gallons Or 13.2 To 15.9 Liters, Vehicles With Larger Cooling Systems Should Use Two Bottles, Small Cooling Systems Should Use 1Oz (3 To 4 Capfuls) Per Quart.
Rust And Corrosion Protection Allows For Use Of Straight Water In Racing Or Reduced Antifreeze Levels In Warm Climates.
Brand: Red Line | Manufacturer: Red Line
See On Amazon #14
Motorcraft Ford Diesel Coolant Additive VC8 - 3 Bottles
Asin: B019OATVXS | Model: 4333058897 | PartNumber: 4333058897 | Ean: 0031508421479 | UPC: 031508421479
Brand: Motorcraft | Manufacturer: Ford
Weight: 0.00 Pounds
See On Amazon #15
Lucas Oil 10640 Super Coolant / 12x1 / 16
Asin: B07DM6M1M2 | Ean: 7439115654625
Brand: Lucas Oil | Manufacturer: Lucas Oil
Weight: 1.00 Pounds
See On Amazon #16
Red Line 80205, Supercool Extreme Powersports Coolant, Safe for Track, Street, Off-Road- 1/2 Gallon (64 Ounces)
Asin: B007KPSLU4 | Model: 80205 | PartNumber: 80205 | Ean: 0083522802055, 0608067916267, 0182682079175, 0798813364012 | UPC: 798813364012, 182682079175, 608067916267, 083522802055
Features
- Designed for use with all modern aluminum, cast iron, copper, brass and bronze cooling systems and compatible with all antifreeze and coolant
- 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
- Formerly known as Supercool With WaterWetter. Same formula, new name and look.
- See more on Amazon...
Blended With Purified, Deionized Water And Proper Waterwetter Percentage.
Formerly Known As Supercool With Waterwetter. Same Formula, New Name And Look..
Reduces Rust, Corrosion And Electrolysis, Cleans And Lubricates Water Pump Seals.
Convenient, Pre-Mixed Coolant For Motorcycles, Atvs, Karts Etc. - Pour And Go.
Brand: Red Line | Manufacturer: Red Line
Dimensions: 3.00 x 9.00 x 6.25 Inches
See On Amazon #17
Smilyeez Listing for BG Cooling System Flush - Coolant Service Kit PN 5901 Includes BG Universal Cooling System Cleaner PN 540 & BG Universal PN 546 (1 Kit)
Asin: B09WN92QBL | Ean: 0766041105288 | UPC: 766041105288
Features
- Remove rust, scale and sludge from cooling system.
- Improves cooling system function.
- Extends coolant life.
- Reduces the chance of overheating.
- Can extend the life of cooling system components.
- See more on Amazon...
Extends Coolant Life..
Can Extend The Life Of Cooling System Components..
Reduces The Chance Of Overheating..
Improves Cooling System Function..
Brand: Smilyeez | Manufacturer: BG Products
See On Amazon #18
Smilyeez BG Universal PN 546 Coolant Additive with Pocket Screwdriver (1)
Asin: B0B6MR8ZVL | Model: 540 | PartNumber: 540
Brand: Smilyeez | Manufacturer: BG Products
See On Amazon #19
Cool-Aide Cooling System Fluid
Asin: B0012TWY48 | Model: 84964 | PartNumber: 84964 | Ean: 0851211006028, 0182682990203 | UPC: 182682990203, 851211006028
Features
- Meets racing specifications for all dirt and paved surfaces
- Allows for maximum horsepower by controlling engine temperatures
- Glycol, nitrate, amine and borax free!
- Protects against rust & corrosion
- 100% Biodegradable in its unused form
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Glycol, Nitrate, Amine And Borax Free!.
100% Biodegradable In Its Unused Form.
Protects Against Rust & Corrosion.
Allows For Maximum Horsepower By Controlling Engine Temperatures.
First Available: 03/21/2014
Brand: Maxima Racing Oils | Manufacturer: Maxima
Dimensions: 3.40 x 10.60 x 6.70 Inches
Warranty: Manufacturer Warranty
See On Amazon #20
Prestone AS105 Total Cooling System Cleaner for Radiator, Heater Core, and Hoses, 22 oz., 6 Pack
Asin: B00B99U074 | Model: AS105Y | PartNumber: AS105Y | Ean: 0797496876515 | UPC: 797496876515
Features
- 2-in-1 formula designed for light flushing and heavy-duty cleaning
- Cleans cooling systems to help prevent overheating
- Non-toxic, non-acidic formula is easy-to-use and safe for all cooling system metals
- Effectively removes heavy deposits by drawing metal oxides into the solution
- Strong enough to help restore maximum cooling system efficiency
- See more on Amazon...
Non-Toxic, Non-Acidic Formula Is Easy-To-Use And Safe For All Cooling System Metals.
Strong Enough To Help Restore Maximum Cooling System Efficiency.
Effectively Removes Heavy Deposits By Drawing Metal Oxides Into The Solution.
Cleans Cooling Systems To Help Prevent Overheating.
First Available: 02/01/2013
Brand: Prestone | Manufacturer: Prestone
Dimensions: 8.50 x 8.00 x 7.75 inches | Weight: 1.38 Pounds
Warranty: See Manufacturer
See On Amazon
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