With numerous Best Antifreeze Additive brands to select from – including big names like Hy-Per Lube,Red Line,Royal Purple,Design Engineering,Lubegard – picking the right product can feel overwhelming. But we’re here to simplify your search for the perfect Best Antifreeze Additive.
We thoroughly tested and evaluated a wide range of top Best Antifreeze Additive contenders to help you navigate the crowded market. Our stand-out favorite is Hy-Per Lube Best Antifreeze Additive for its unparalleled quality and top-tier features. Below you’ll discover more of our top-rated Best Antifreeze Additive picks currently available.
Make sure to consult our buying guide too for valuable insights on choosing the ideal product for your needs. It covers all the key factors when shopping for a Best Antifreeze Additive. With our research backing your decision, you can confidently invest in a Best Antifreeze Additive you’ll truly love.
Premium Pick
Hy-Per Lube HPC100-3PK High Performance Super Coolant - 16 oz, (Pack of 3)
Top 10 Best Antifreeze Additive
We researched and compared the top products in the Best Antifreeze Additive category to provide you with these recommendations.
1. Rislone Hy-per Cool Super Coolant, 16 oz.
- REDUCES ENGINE TEMPERATURE: Rislone Hy-per Cool Super Coolant contains New Technology wetting agents which lower the surface tension of the water/coolant mixture, allowing it to improve the heat transfer of your cooling system
- PREVENTS OVERHEATING: This will make your system dissipate more heat more efficiently, reducing engine temperatures by up to 25F helping to prevent overheating.
- MAXIMUM CORROSION PROTECTION: Super Coolant lubricates and protects water pump seals, and helps prevent corrosion of ALL metals commonly found in cooling systems, including Aluminum.
- COMPATIBLE WITH ALL TYPES AND ALL COLORS OF ANTIFREEZE COOLANT: Use in gasoline classic cars, hot rods, trucks, RVs, motorcycles, automotive, heavy duty, diesel, powersports ATV, off road, racing, towing and most anything else with a cooling system.
- MADE IN THE USA
2. Hy-Per Lube HPC100-3PK High Performance Super Coolant - 16 oz, (Pack of 3)
- REDUCES ENGINE TEMPERATURE: Rislone Hy-per Cool Super Coolant contains New Technology wetting agents which lower the surface tension of the water/coolant mixture, allowing it to improve the heat transfer of your cooling system
- PREVENTS OVERHEATING: This will make your system dissipate more heat more efficiently, reducing engine temperatures by up to 25F helping to prevent overheating.
- MAXIMUM CORROSION PROTECTION: Super Coolant lubricates and protects water pump seals, and helps prevent corrosion of ALL metals commonly found in cooling systems, including Aluminum.
- COMPATIBLE WITH ALL TYPES AND ALL COLORS OF ANTIFREEZE COOLANT: Use in gasoline classic cars, hot rods, trucks, RVs, motorcycles, automotive, heavy duty, diesel, powersports ATV, off road, racing, towing and most anything else with a cooling system.
- MADE IN THE USA
3. Red Line 80204 WaterWetter Super Coolant - 12 Ounce
- 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
- DIRECTIONS FOR 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
- POPULAR FOR USE IN - new or used antifreeze (including DEX-COOL and long-life versions) to improve the heat transfer of ethylene and propylene glycol systems, satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises
4. 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
5. Design Engineering Radiator Relief Coolant Additive Engine Coolant for Cars, Trucks, RVs,
- LOWERS ENGINE TEMPERATURES - Radiator Relief lowers engine temperatures by up to 30F, helping your vehicle run cooler and more efficiently in hot weather. This can reduce engine wear and enhance performance, making it ideal for any water-cooled engine.
- PREVENTS OVERHEATING AND CORROSION - This engine coolant helps prevent overheating and combats both electrolytic and chemical corrosion. It also reduces existing scale buildup, acting as a corrosion inhibitor to keep your engine running longer.
- PROTECTS AGAINST RADIATOR CORE DAMAGE - Our radiator coolant is specially formulated to reduce engine mineral buildup, helping prevent core damage. The first additive to maintain stable pH levels, preventing harmful fluctuations that damage your engine.
- VERSATILE COMPATIBILITY - This additive features an anti-foaming agent and is compatible with all types of antifreeze coolants. It's safe to use with any radiator material, including cast iron, copper, brass, and aluminum.
- EASY AND SAFE TO USE - With a non-toxic, non-corrosive formula, Radiator Relief coolant additive is safe for use in cars, trucks, RVs, ATVS, snowmobiles, and motorcycles. Just add 1 oz per quart of coolant for optimal results.
6. Lubegard 96430 Heavy Duty 2-in-1 Coolant Treatment, 32 fl. oz.
- Provides 2-in-1 corrosion protection and temperature reduction
- Provides complete protection from corrosion and chemical electrolysis
- Protects wet sleeve cylinder liners from cavitation erosion
- Prevents build-up of scales, deposits and slime that cause overheating
- Significantly extends life of water pump impellers and seals
7. Ford Genuine Ford Fluid VC-8 Diesel Cooling System Additive - 16 oz. , RED
- 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
8. HEET Water Remover & Premium Gas Line Antifreeze, Removes Water from Fuel System, Prevents Gas-line
- HIGHLY EFFICIENT FILTERING & WATER SEPARATION: Keep your fuel line clean and free of water with the best selling brand of gas-line antifreeze and water remover
- PREVENTS RUST & CORROSION: By absorbing excess moisture, HEET helps keep the fuel system dry, reducing the risk of rust & corrosion. This ensures smoother engine operation, longer-lasting performance, & protection.
- SAFE FOR: All 4-cycle engines including fuel injected engines.
- HEET QUALITY: The health of your cars & outdoor equipment depends on the quality of your gas-line anti-freeze. With HEET products pumping through your engines veins, youll always be safeguarded against freeze-ups in winter.
9. VP Racing Fuels 2085 Cool Down Coolant Performance Improver, 16 Ounces
- MAXIMIZE PERFORMANCE: Contains wetting agents to increase coolant flow for better heat transfer and reduces coolant temperature by up to 30F
- PROTECTIVE TREATMENT: Provides superior heat dispersion while lubricating vital components like water pumps and seals and protecting the sensitive quality of aluminum alloy radiators
- HIGH STANDARDS: Meets/Exceeds ASTM specifications for fully-formulated engine coolant, including ASTM D3306. Always maintain a minimum of 15% antifreeze in cooling systems of street driven vehicles with A/C. Safe and legal for track use because it does not contain glycol
- COMPETITIVE EDGE: Engineered to keep your operating temperatures at optimum performance to not lose power through excess heat; Cool Down is safe for vehicles over all types of terrain and offers superior heat reduction
- EASY TO USE: Premixed and ready to pour, allowing you to maximize horsepower and performance. One 16oz bottle treats cooling systems of 12-20 quarts and lasts for one year or 30,000 miles. For diesel applications use twice the amount for full protection of wet sleeve cylinder liners. For powersports applications use 2 oz. per quart of coolant
10. Cummins Filtration Fleetguard DCA60L Coolant Additive 16oz. DCA4
Peter
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