Best Coolant Additives

of Jun 2023

Maxima 89

Maxima 89-83964 Off-Road Coolant 64 oz Bottle is the premium coolant designed with top SXS and Off-Road Class racers. This coolant has been tested and proven in the harshest and most extreme environme...

Bosch F01C600237 Diesel Exhaust Fluid (DEF) Heater Bosch Denox Heating Pot

The Bosch F01C600237 Diesel Exhaust Fluid (DEF) Heater Bosch Denox Heating Pot is a great choice for keeping your DEF fluid at the optimal temperature. This heater is designed to fit a wide variety of...

Rotella ELC Antifreeze/Coolant Concentrate 1 Gal.

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Shell ROTELLA® ELC Antifreeze/Coolant Concentrate is the essential product you need to keep your cooling system working efficiently and effectively. This advanced coolant delivers optimal protection ...

Triax DSG/DCT ATF Dual Clutch Full Synthetic, Lifetime Fill, for All Dual Clutch Transmissions, High...

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Triax DSG/DCT ATF Dual Clutch Full Synthetic, Lifetime Fill, for All Dual Clutch Transmissions, High Performance Speed Shift is a revolutionary product designed to provide superior performance in all ...

PEAK OET Extended Life Green Concentrate Antifreeze/Coolant for Asian Vehicles, 1 Gal.

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PEAK OET Extended Life Green Concentrate Antifreeze/Coolant for Asian Vehicles, 1 Gal. is the perfect solution for protecting your Asian vehicle's engine cooling system. This advanced formulation prev...

Design Engineering 040202 Radiator Relief Cooling System Flush, 16 oz.

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The DEI Radiator Relief Cooling System Flush is a powerful cleaning solution designed to keep your radiator running at peak efficiency. This advanced treatment is designed to dissolve rust, mineral de...

Honda 08206

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The Honda 08206-9002PE Power Steering Fluid Pack of 3 is the perfect product for keeping your Honda vehicle in top condition. This pack of genuine OEM Honda Power Steering Fluid is designed specifical...

Genuine Toyota Lexus Automatic Transmission Fluid 1QT WS ATF World Standard

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The Genuine Toyota Lexus & Automatic Transmission Fluid WS ATF World Standard (1 Pack) is a quality-assured transmission fluid specifically designed for sealed, automatic transmissions. Developed with...

Mopar 68051212AB Anti

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Mopar 68051212AB Anti-Freeze is the perfect solution for keeping your engine running smoothly and efficiently. This anti-freeze is designed to protect your engine from the effects of extreme temperatu...

ACDelco GM Original Equipment 10

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ACDelco GM Original Equipment 10-5027 Dex-Cool 50/50 Pre-Mix Engine Coolant is a premium-grade coolant that is perfect for on the go situations. This orange, silicate and phosphate free coolant is bas...

PEAK OET Extended Life Gold 50/50 Prediluted Antifreeze/Coolant for North American Vehicles, 1 Gal.

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PEAK OET Extended Life Gold 50/50 Prediluted Antifreeze/Coolant is the perfect choice for North American vehicles. This 1 gallon antifreeze/coolant is designed to protect all engine cooling system com...

Maxima CS84916

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Introducing the Maxima CS84916-12PK Cool-Aide Concentrated Motorcycle/ATV Racing Coolant - 16 oz., (Case of 12). This powerful concentrate is designed to reduce engine temperatures, provide significan...

Zerex G05 Phosphate Free 50/50 Prediluted Ready

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Valvoline ZEREX G-05 antifreeze coolant is a long life, fully formulated, ethylene glycol-based fluid suitable for passenger cars, light trucks and heavy duty vehicles. This product comes in a 1 gallo...

Mopar 10 Year/150,000 Mile Coolant Concentrate

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Mopar 68163848AB 10 Year/150,000 Mile Antifreeze / Coolant Concentrate is a genuine Mopar product that is perfect for ensuring your vehicle's coolant system is running smoothly and efficiently. This 1...

PEAK OET Extended Life Violet 50/50 Prediluted Antifreeze/Coolant for European Vehicles, 1 Gal.

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The PEAK OET Extended Life Violet 50/50 Prediluted Antifreeze/Coolant for European Vehicles is the perfect solution for those looking for a reliable coolant for their European vehicles. This 1-gallon ...

Genuine Subaru SOA868V9270 Super Coolant

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Introducing Genuine Subaru SOA868V9270 Super Coolant – the ultimate in precision designed long-lasting protection for your engine’s cooling system. This pre-diluted antifreeze/engine coolant offer...

Maxima 82964 Coolanol 50/50 Blend Performance Coolant

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Maxima 82964 Coolanol 50/50 Blend Performance Coolant - 64 oz. , Black is the perfect solution for those looking to protect their aluminum and magnesium enclosed engines in the most effective way. Wit...

Genuine Ford Fluid VC

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Genuine Ford Fluid VC-7-B Red Concentrated Antifreeze/Coolant is a yellow-colored, ethylene glycol-based antifreeze/coolant for use in gasoline and diesel engines. It provides year-round antifreeze, a...

FLEET CHARGE FXAB53 Antifreeze Coolant, 1 gal, 50/50, Red

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Introducing FLEET CHARGE FXAB53 Antifreeze Coolant, the perfect solution for automotive and truck maintenance. This pre-diluted, liquid coolant is packaged in a 1 gallon red plastic bottle, and offers...

In any combustion engine, one of the most critical factors is temperature control. Excessive heat can lead to engine failure and reduced performance, while maintaining optimal operating temperatures can help improve fuel economy and extend the life of the engine. This is the purpose of coolant additives - to regulate engine temperature by enhancing the effectiveness of the coolant. However, with so many options available, it can be hard to choose the right product. This article will provide valuable tips for choosing the right coolant additives for your vehicle.

1. Determine Your Engine's Requirements

Before selecting a coolant additive, it is essential to take into account the specific requirements of your engine. Each vehicle manufacturer prescribes certain coolant specifications, which have to be followed to optimize performance and avoid engine damage. Failure to comply with these specifications can lead to severe damages that could affect the functionality of the engine.
1.1. Check Whether Your Engine Requires Pre-mixed or Concentrated Additives
Coolant additives come in two forms: pre-mixed solutions and concentrated additives which require the addition of water. Therefore, it is crucial to check the vehicle’s user manual to determine which type of additive is recommended. While many pre-mixed options can be used in place of water in all coolant systems, some engines may require a specific concentration, and hence it is imperative to follow the engine's requirements.
1.2. Check Which Additive Type is Compatible with Your Cooling System
Engine manufacturers typically recommend specific coolant types for each engine, and it is essential to determine which type of coolant is compatible with the vehicle's cooling system to ensure optimal performance. Coolant additives typically come in two types – silicate and non-silicate-based. While some engines may use specific coolant types or additives, others may require solely silicate or non-silicate-based products.
1.3. Determine the Freeze Point Your Engine Requires
Coolant additives come with varying freeze points, which have to be taken into consideration during selection. Engine manufacturers often prescribe specific freeze points to avoid damage from freezing temperatures. It is essential to select an additive that can safely operate in the expected temperature range without corroding the cooling system.

2. Consider the Function of the Additives

Based on the purpose you want to fulfil, different coolant additives have varying functions. Below are some examples of coolant additives and their intended purpose:
2.1. Corrosion Inhibitors
Coolant additives can prevent engine parts from corroding by prohibiting rust and scale, which can accumulate within the cooling system over time. These additives, which are typically available as silicates, phosphates or borates, provide protection to the engine by forming a protective film inside the coolant system.
2.2. Anti-Freeze Agents
Anti-freeze coolant additives are essential for drivers in cold climates. Also known as "winter" coolants, these additives lower the freezing temperature of the coolant, which helps to prevent engine damage during harsh winter conditions. Anti-freeze agents typically come as propylene glycol and ethylene glycol-based products, which come with varying freeze points designed to protect engines in the most extreme conditions.
2.3. Anti-Foaming Agents
The cooling systems of engines can produce foam, which can prevent the coolant from reaching all areas of the engine. Anti-foaming coolant additives help to reduce the foam formation, ensuring that the coolant adequately circulates throughout the engine.
2.4. Water Pump Lubricants
Coolant additives infused with water pump lubricants provide the oiliness required to help the water pump operate effectively. These additives lubricate the water pump’s components and maintain their optimal function.

3. Consider Proper Dilution Requirements

A notable feature of coolant additives is that some require dilution in water for proper functionality. The dilution ratio is essential as incorrect dilution can damage the engine by reducing the coolant's effectiveness. Follow the dilution instructions provided by the manufacturer and avoid making changes to the recommended ratio unless advised by a professional mechanic.

4. Price Vs Quality

Cost efficiency is a major factor that influences the brand selection of most products. However, when it comes to coolant additives, it is recommended not to base the selection solely on price. Selecting cheaper coolant additives can lead to potential engine damage and reduced performance over time. Instead, consider value for money and choose products with good reviews and long-term user experience.

5. Choose Reputable Brands

The quality of the coolant additive's brand is critical in determining the overall effectiveness of a coolant. It is always best to select reputable brands with a positive track record and long history in the market. Brands that have invested in research, development and testing to improve their products demonstrate care for their customer's engines and satisfaction.


In conclusion, choosing the right coolant additive is vital for the optimal performance and longevity of any engine. Engine requirements, the additive function, dilution requirements, and brand and manufacturing quality are all critical factors that should be taken into consideration when selecting coolant additives. A combination of these factors will ensure the effective control of engine temperature, lubrication for essential components, corrosion prevention, reduced water foaming, and proper engine operation. By following the tips outlined above, drivers can identify the right coolant additives to meet the specific requirements of their engine and driving conditions.

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