10 Best Coolant Additives 2024 in the US

1.

OEM Fluid Replacement: Suitable for Asian vehicles like Toyota, Lexus, Scion.

2.

Long-Life Formula: 5 year/150,000 mile protection against rust and corrosion.

3.

Silicate-Free Chemistry: Prevents harmful scale and deposits in cooling systems.

4.

Meets OEM Specifications: Complies with JIS K 2234-1994, Hyundai/KIA MS 591-08, and more.

5.

Phosphate HOAT Technology: Utilizes Hybrid Organic Acid Technology for enhanced protection.

1.

Freeze Protection: Outperforms industry standards for freeze protection.

2.

Anti-Boil Performance: Provides superior anti-boil performance.

3.

Organic Acid Technology: Resists rust, scale, and corrosion in cooling systems.

4.

High-Quality Additives: Protects against leaks without harming vehicle components.

5.

Orange Concentrate Formula: Mix with water for optimal temperature protection.

1.

Vibrant Colors: Choose from a stunning range of vibrant colors.

2.

Pre-mixed Coolant: Ready to use right out of the bottle, no additives needed.

3.

Anti-corrosion Protection: Protects copper, brass, and nickel with advanced inhibitors.

1.

Freeze Protection: Outperforms industry standards for freeze and boil protection.

2.

Hybrid Organic Acid Technology: Fights rust, scale, and corrosion in cooling systems.

3.

High-Quality Additives: Protects against leaks without harming vehicle components.

4.

Yellow Concentrate Formula: Mix with water for temperature protection from -84 to 270F.

5.

5 Year/150,000 Mile Guarantee: Covers engine failure from freeze-ups or boil-overs.

1.

Universal Compatibility: Recommended for use in all makes, models, mileages, and compatible with all colors.

2.

Alugard Plus Additive: Contains Alugard Plus for maximum protection by allowing chemistries to work together.

3.

Lubricates Gaskets and Seals: Provides lubrication for gaskets and seals.

4.

Weather Protection: Protects against cold weather freeze-ups and hot weather boil-overs.

5.

Bittering Agent: Contains 30 – 50 ppm of denatonium benzoate as a bittering agent.

1.

Low Temperature Protection: Protects down to -34°F.

2.

Rust and Corrosion Prevention: Prevents rust and corrosion effectively.

3.

Patented Corrosion Inhibitor: Uses organic acid for extended engine protection.

4.

Bittering Agent: Contains 30-50 ppm denatonium benzoate.

1.

Prestone CorGuard technology: Includes patented Prestone CorGuard technology

2.

Extreme Temperature Protection: Protects from winter deep freezes and summer heat

3.

Efficient cooling system: Helps cooling system run more efficiently and last longer

4.

Contains Bitterant: Contains Bitterant to prevent ingestion

1.

Replaces V119 antifreeze: Meets Ford specification ESE-M97B44-A

2.

Replaces Motorcraft gold antifreeze: Meets Ford specification WSS-M97B51-A1

3.

Additive replacement: Designed to replace additives depleted between coolant change-outs

4.

Dyed yellow: Eliminates engine coolant color change when mixing

5.

Genuine OEM: Original Equipment Manufacturer product

1.

Heavy Duty Formula: Meets demands of heavy-duty diesel engines like Cummins, DDC, and Ford trucks

2.

Organic Acid Technology (OAT): Protects against rust and hard-water scale deposits

3.

Silicate, Amine, and Borate-Free: Keeps cooling system metals protected

4.

Yellow Concentrate Formula: Ready to be mixed 50/50 with clean tap water or demineralized water

5.

10 Years/1,000,000 Mile Guarantee: Protects against engine failure caused by freeze-ups or boil-overs