18 Best and Coolest Coolant Additives

 

Subaru Coolant Additive Genuine SOA635071 Set of 7
Subaru Coolant Additive Genuine SOA635071 Set of 7
Subaru Coolant Additive Genuine SOA635071 Set of 7 - Replenishes corrosion inhibitors. For heavy duty cooling systems with extended service interval technology. Controls acid levels. Protects all engine and cooling system metals. Stops rust and scale build-up.

 

Subaru Engine Coolant Additive Genuine SOA635071 Set 4
Subaru Engine Coolant Additive Genuine SOA635071 Set 4
Subaru Engine Coolant Additive Genuine SOA635071 Set 4 - Quantity pack is 1 each. Fram sp3971 liquid coolant a.

 

Motorcraft Ford Diesel Coolant Additive VC8 - 3 Bottles
Motorcraft Ford Diesel Coolant Additive VC8 – 3 Bottles
Motorcraft Ford Diesel Coolant Additive VC8 – 3 Bottles - In all heavy-duty, diesel engine cooling systems equipped with green-colored motorcraft® premium engine coolant meeting ford specification ese-m97b44-a. Now dyed yellow to eliminate engine coolant color change when mixing. 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.

 

MOTUL MoCool Coolant Additive - 234557
MOTUL MoCool Coolant Additive – 234557
MOTUL MoCool Coolant Additive – 234557 - Inhibits corrosion and has water pump protection. Mocool is compatible with antifreezes, including the new long-life versions. Type of use this performance additive offers better heat transfer than normal coolants. Packaged in 500ml (16. 9 fluid ounces) plastic bottles, concentrated formula that is mixed with distilled water for immediate use. Designed for aluminum, cast iron, copper, brass and bronze systems. Mocool is a radiator additive which will reduce cooling system temperature by as much as 15ºc (30ºf). Seal, rubber and plastic part friendly designed to be used with pure water at a dilution of 5% (201) (for competition use where monoethyleneglycol is not allowed) or mix with your coolant at 5% of volume. Product description motul mocool coolant additive. Mix with water at 5% (201)do not use straight out of the bottle. Best used for overheating engines or racing conditions. The unique formula also contains rust and corrosion inhibitors.

 

Baldwin CS5008 BTE Liquid Coolant Additive
Baldwin CS5008 BTE Liquid Coolant Additive
Baldwin CS5008 BTE Liquid Coolant Additive - They reduce foaming caused by piston slap and the circulation of the coolant. These coolant additives eliminate pump seepage caused by granular precipitation on seals due to the lowest total dissolved solids. Baldwin bte liquid coolant additives are designed to provide superior protection against cavitations erosion, corrosion, scale and foaming.

 

Motorcraft VC8 Diesel engine coolant additive
Motorcraft VC8 Diesel engine coolant additive
Motorcraft VC8 Diesel engine coolant additive - Designed to replace additives depleted between coolant change-outs. Now dyed yellow to eliminate engine coolant color change when mixing. 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.

 

DEI 040200 Radiator Relief Coolant Additive for All Water Cooled Engines 16 oz
DEI 040200 Radiator Relief Coolant Additive for All Water Cooled Engines, 16 oz.
DEI 040200 Radiator Relief Coolant Additive for All Water Cooled Engines, 16 oz. - For use in all water cooled engines. Formulated with a corrosion inhibitor and reduces pre-existing scale build-up. Safe with all alloys, 100% biodegradable, non-corrosive and non-toxic additive. No mixing required just add to cooling system and reduce engine operating temperature up to 30 degrees fahrenheit. Compatible with water and all anti-freeze mixtures.

 

Coolant Additive Chemical CS5007
Coolant Additive, Chemical, CS5007
Coolant Additive, Chemical, CS5007 - Fits multiple makes and models (contact seller with your vehicle for fitment compatibility information). Price for each sub-category coolant additive type chemical item coolant additive country of origin (subject to change) united states.

 

Subaru Engine Coolant Additive Genuine 97149003001  SOA635071 Set of 3
Subaru Engine Coolant Additive Genuine 97149003001 / SOA635071 Set of 3
Subaru Engine Coolant Additive Genuine 97149003001 / SOA635071 Set of 3 - Some owners swear by this stuff, some are mad they have to use it in the first place, and some put it in and forget it. If adding it before your next flush, just remove 4oz from your radiator (when cool). If your car is showing signs of head gasket issues, it is advised to try this out, and then use it with every coolant flush. Other head gasket failure preventions, make sure your battery terminals are corrosion free. Some subaru models are notorious for head gasket issues. Use one of these every time you do you your 30,000 miles coolant flush. Recently has seen widespread use in non-subaru makes because of it’s excellent performance compared to other stop leak products. Subaru developed this additive with holts to prevent problems from faulty head gaskets. It is a brown goupy solution with chunks, you must shake very well before pouring.

 

ROYAL PURPLE 21600 Coolant Additive
ROYAL PURPLE 21600 Coolant Additive
ROYAL PURPLE 21600 Coolant Additive - Provides superior protectionresists cavitations, erosion, corrosion, scale and foamingreduces foaming caused by piston slap and the circulation of the coolanteliminates pump seepage caused by granular precipitation on sealshighly durable. 12.

 

Prestone HD300-16 Command Extender Liquid Coolant Additive 16 fl oz
Prestone HD300-16 Command Extender Liquid Coolant Additive, 16 fl. oz.
Prestone HD300-16 Command Extender Liquid Coolant Additive, 16 fl. oz. - This additive inhibits rust, corrosion, and scale formation, while also working to replenish lost corrosion protection. Prestone command extender liquid coolant additive is a premixed liquid chemical additive for heavy duty cooling systems using extended life coolants. Also offers complete wet liner protection and protects all cooling system metals.

 

Fram SP3971 Liquid Coolant Additive
Fram SP3971 Liquid Coolant Additive
Fram SP3971 Liquid Coolant Additive - Edward aldam, invented an easily-replaceable oil filtering element at their laboratory in providence, ri. Franklin and aldam, whose last name combination gave rise to the company name, set out to solve these problems with their revolutionary filters. The fram® history dates back over 75 years when the original chemists, frederick franklin and t. Automotive oil filters of various types had been on the market for nearly ten years, yet were difficult to install, change and clean.

 

Red Line Oil 80204 Water Wetter Coolant Additive Pack of 4 Bottles
Red Line Oil 80204 Water Wetter Coolant Additive Pack of 4 Bottles
Red Line Oil 80204 Water Wetter Coolant Additive Pack of 4 Bottles -   R31-80204-4pk   description red line water wetter provides corrosion and rust protection for modern aluminum and cast iron cooling systems. Featuresunique agent for cooling systems that doubles the wetting ability of waterrust and corrosion protection allows for use of straight water in racing or reduced antifreeze levels in warm climatesimproves heat transfer and reduces cylinder head temperaturemay allow more spark advance for increase power and efficiencyuse one bottle for most passenger cars and light trucks, treats 3 to 5 gallons or 13. Vehicles with larger cooling systems should use two bottles. This unique additive reduces coolant temperatures by as much as 30 degrees f. 2 to 15. , Pack of 4.   Red line oil #80204 coolant additive, water wetter, 12 fluid oz. 9 liters. Small cooling systems should use 1oz (3 to 4 capfuls) per quartcompatible with new or used antifreeze (including dex-cooltm and long-life versions) to improve the heat transfer of ethylene and propylene glycol systemssatisfies astm d2570 and astm d1384 corrosion tests for glycol-based antifreezes.

 

Prestone HD200-16 Command Supplemental Coolant Additive 16 fl oz
Prestone HD200-16 Command Supplemental Coolant Additive, 16 fl. oz.
Prestone HD200-16 Command Supplemental Coolant Additive, 16 fl. oz. - Prestone command supplemental coolant additive is designed for heavy duty cooling systems with extended service interval technology and works to protect coolant systems from corrosion and the build-up of harmful deposits, while controlling the ph balance with dependable chemical conditioning. This additive stops rust and scale build-up, protects all engine and cooling system metals, controls acid levels, and replenishes corrosion inhibitors.

 

Donaldson X007099 Coolant Additive
Donaldson X007099 Coolant Additive
Donaldson X007099 Coolant Additive - Durable, rugged and built for the long haul, donaldson filter are the first-fit choice of oe’s and the preferred choice for filter replacement.

 

Maxima Oil Cool-Aide Coolant Additive 1600 oz PN 84916S
Maxima Oil Cool-Aide Coolant Additive 16.00 oz P/N 84916S
Maxima Oil Cool-Aide Coolant Additive 16.00 oz P/N 84916S - Maxima racing oils 84916s cool-aide coolant 16oz concentrate. 12.

 

Maxima Oil Cool-Aide Coolant Additive 1600 oz Case of 12 PN 84916
Maxima Oil Cool-Aide Coolant Additive 16.00 oz Case of 12 P/N 84916
Maxima Oil Cool-Aide Coolant Additive 16.00 oz Case of 12 P/N 84916 - 1600 oz bottle. Antifreeze/coolant additive. Maxima oil 84916 engine coolant additive. Cool-aide. Set of 12.

 

Flex-a-lite 50016 Flex-a-Chill Coolant Additive - 12 fl oz
Flex-a-lite 50016 Flex-a-Chill Coolant Additive – 12 fl. oz.
Flex-a-lite 50016 Flex-a-Chill Coolant Additive – 12 fl. oz. - Improve heat transfer by as much as 20 degrees fahrenheit. One 12-ounce bottle treats 12-16 quarts of coolant with a minimum of 20-percent antifreeze for street applications. Contains organic compounds that prevent contaminates such as calcium and magnesium from developing into scales that clog your cooling system. Provides corrosion protection for aluminum engine parts. Race track surface approved.