Hawk Power Cool 180° Waterless Cooling Fluid 5L

Hawk Power Cool 180° 5L waterless cooling fluid is specially formulated for sports cars, high-performance engines, modified vehicles, and race cars. This variant of the Hawk range is particularly well-suited for high-performance engines that use components made of cast iron, copper, steel, and aluminum.

Hawk Power Cool 180° cooling fluid is used undiluted with water. With a boiling point above 180°C and a freezing point below -40°C, it helps reduce issues related to water boiling, vapor formation, cavitation, and corrosion in the cooling system.

Important: Properly prepare the system with Prep Fluid

It is essential to prepare the system before switching to Hawk waterless cooling fluid if the engine currently contains or has previously contained a water-based cooling fluid. Simply draining the system may leave residual water in the engine block, radiator, heating system, or various pipes.

The conversion must therefore be performed first using the Prep Fluid 5L. This ensures the system is properly prepared and residual water is removed before the final fill with Hawk Power Cool 180° waterless cooling fluid.

After conversion, Hawk recommends that the residual water content be ideally 3% or less. This value can be checked using a refractometer. Proper preparation is essential to fully enjoy the benefits of the water-free coolant, particularly in a high-performance engine or one that is used intensively.

The Benefits of Hawk Power Cool 180° Cooling Fluid

• 100% water-free: can be used undiluted with water after proper preparation of the water circuit.
• Boiling point above 180°C: Significantly reduces boiling and vapor formation in the hottest areas of the engine.
• Antifreeze protection down to below -40°C: no additional antifreeze is needed.
• 75% lower vapor pressure: reduces stress on hoses, gaskets, and system components, according to Hawk.
• Reduced cavitation erosion: Hawk reports a 75% reduction compared to water-based fluids for Power Cool 180°.
• Corrosion protection: The absence of water eliminates oxidation-based corrosion, according to Hawk.
• Engine heat protection: The reduction in vapor locks and hot spots helps limit overheating conditions that can lead to cylinder head gasket failure.
• Less stress on the water pump: Low vapor pressure and reduced cavitation help minimize stress on the water pump and cooling system.
• Better resistance after engine shutdown: Its high boiling point limits the risk of boiling due to residual heat after a heavily loaded engine is shut down.
• Extremely long operating time: Hawk claims over 20 years and one million miles of service without replacement for Power Cool 180°.

Specifications of Hawk Power Cool 180° Waterless Cooling Fluid, 5L

• Type: Waterless engine cooling fluid
• Brand: Hawk Waterless Coolants
• Range: Power Cool 180°
• Volume: 5 liters
• Application: High-performance cars / sports cars / tuned vehicles / racing
• Engines: High-performanceengines with cast iron, copper, steel, and aluminum components
• Usage: Undiluted—no water added
• System Preparation: Pre-treat with Prep Fluid when switching from a water-based coolant
• Boiling point: Above 180°C
• Freezing point: Below -40°C
• Vapor pressure: 75% lower than water-based fluids, according to Hawk
• Cavitation erosion: Reported 75% reduction compared to water-based fluids
• Water content after conversion: Ideally ≤ 3%
• Water content control: Refractometer
• Color: Transparent red
• Odor: Virtually odorless
• Claimed operating time: Over 20 years and one million miles without replacement
• Former brand name: Evans Waterless Coolants
• Former product name: Evans Power Cool 180°

For which cars should you use Hawk Power Cool 180° cooling fluid?

Hawk Power Cool 180° cooling fluid is Hawk’s formulation designed for high-performance engines. It is particularly well-suited for sports cars, tuned vehicles, and race cars whose engines and cooling systems are subjected to demanding operating conditions.

Hawk designs Power Cool 180° for high-performance engines that use components made of cast iron, copper, steel, and aluminum. It is therefore the preferred choice in the Hawk range for performance-oriented or competition vehicles.

Choosing the right formulation remains important. For modern production cars, classic cars, or vintage vehicles, Hawk offers formulations such as Auto Cool 180°, Classic Cool 180°, and Vintage Cool 180°, developed for other engine types and cooling systems.

Why switch to a water-free cooling fluid?

Switching to Hawk Power Cool 180° waterless cooling fluid is not simply a matter of replacing one cooling fluid with another. The goal is to remove water from the system in order to eliminate or significantly reduce several issues directly linked to its presence: localized boiling, vapor formation, pressure buildup in the system, corrosion, and cavitation.

In a heavily loaded engine, certain areas of the cylinder head and engine can reach extremely high temperatures. With a standard cooling fluid, water can boil locally and form pockets of vapor lock. Vapor transfers heat much less efficiently to metal surfaces than liquid, which can create localized hot spots and promote overheating conditions that can lead, in particular, to cylinder head gasket failure.

With a boiling point exceeding 180°C, Hawk Power Cool 180° cooling fluid remains liquid at temperatures at which a standard cooling fluid may begin to produce vapor. The cooling fluid thus maintains contact with hot metal surfaces and helps ensure more uniform heat transfer throughout the engine.

Its low vapor pressure also reduces stress on hoses, gaskets, the radiator, and other components in the cooling system. At the same time, reduced cavitation helps protect the water pump and other components exposed to the flowing coolant.

A slightly higher engine temperature may be normal

After switching to Hawk water-free cooling fluid, the displayed operating temperature may rise slightly. Hawk notes that an increase of approximately 3 to 7°C may be observed after the conversion.

This increase does not necessarily mean that the engine is overheating. The fluid remains in a liquid state at high temperatures and helps prevent vapor formation and localized hot spots in the engine’s most thermally stressed areas.

Evans Waterless Coolants Becomes Hawk Waterless Coolants

Evans Waterless Coolants is now known as Hawk Waterless Coolants. This change pertains to the brand identity and not to the product formulation. The former Evans Power Cool 180° waterless cooling fluid is now called Hawk Power Cool 180°. If you previously used Evans Power Cool 180°, you will find this same formulation under the new Hawk brand.

GT2i is an official retailer of the Hawk Waterless Coolants brand. At GT2i, you’ll find the various Hawk waterless cooling fluids as well as the products needed to prepare and convert your cooling system.

How do you switch to Hawk waterless cooling fluid?

When converting from a conventional cooling fluid, start by properly draining the system, then prepare it using Prep Fluid. This step minimizes the quantity of water remaining in the engine after draining.

Use the 5L Prep Fluid before the final fill. Once the conversion is complete, Hawk recommends that the residual water content be ideally 3% or less, which can be checked using a refractometer.

Once the cooling system has been properly prepared, Hawk Power Cool 180° is used undiluted with water. The volume required for filling is comparable to that used with a standard cooling fluid.

Hawk Power Cool 180° must not be intentionally mixed or diluted with water. Adding water gradually reduces the benefits associated with a waterless system.

FAQ - Hawk Power Cool 180° Waterless Cooling Fluid

For which cars is Hawk Power Cool 180° cooling fluid recommended?
Power Cool 180° is formulated for high-performance engines. It is particularly well-suited for sports cars, tuned vehicles, and race cars.

Why switch from a standard cooling fluid to a waterless cooling fluid?
The goal is to remove water from the cooling system to limit the issues associated with it: localized boiling, vapor formation, pressure, corrosion, and cavitation. With a boiling point exceeding 180°C, Hawk Power Cool 180° ensures that the coolant remains in contact with the engine’s hot areas at temperatures at which a standard coolant may begin to generate vapor.

Should Prep Fluid be used before Hawk Power Cool 180°?
Yes, when converting from a system that contains or has contained a water-based fluid. Simply draining the system may leave water in various parts of the engine. The system must therefore be properly prepared with Prep Fluid 5L before the final fill.

What quantity of water can remain in the system after the conversion?
Hawk recommends that the residual water content be ideally 3% or less. A higher quantity may prevent you from fully enjoying the benefits of the waterless fluid, particularly during high-performance use.

How do you check the quantity of remaining water?
The water content can be checked using a refractometer. This measurement verifies that the system preparation has properly reduced the quantity of residual water.

Can Hawk Power Cool 180° be mixed with water?
No, Hawk Power Cool 180° should not be intentionally diluted with water. Adding water gradually diminishes the benefits sought from a waterless cooling fluid. The system must be properly prepared before filling with Power Cool 180°.

Can water be added in an emergency?
Yes, but only as a temporary fix when it’s not possible to top off the water level with Hawk fluid. Power Cool 180° is miscible with water, allowing you to continue using the vehicle in an emergency. This solution is intended to be temporary only. After adding water, you’ll need to drain the system again and thoroughly prepare the system with Prep Fluid to restore the water content to Hawk’s recommended levels before refilling with water-free cooling fluid.

Do I need to add antifreeze to Hawk Power Cool 180°?
No. Freeze protection is built directly into the fluid, with a freezing point below -40°C. No additional antifreeze should be added.

Is it normal for the engine temperature to rise after switching to Hawk?
Yes, a slight increase may be normal. Hawk indicates that an increase of approximately 3 to 7°C in operating temperature may be observed after the conversion. This does not necessarily mean that the engine is overheating.

Can water-free coolant help protect the head gasket?
Its boiling point, which exceeds 180°C, helps limit the formation of steam and localized hot spots in the areas under the greatest thermal stress. This helps reduce certain overheating conditions that can lead to cylinder head gasket failure.

Does Hawk Power Cool 180° reduce cavitation?
Yes. Hawk claims that Power Cool 180° reduces cavitation erosion by 75% compared to water-based cooling fluids. This property helps protect the components of the cooling system.

How long can Hawk cooling fluid be used?
Hawk states that its waterless coolants can remain in service for the life of the engine as long as they are not contaminated. For Power Cool 180°, the manufacturer also claims proven use for over 20 years and one million miles without replacement.

Are Evans Waterless Coolants and Hawk Waterless Coolants the same products?
Yes. Evans Waterless Coolants has become Hawk Waterless Coolants. The former Evans Power Cool 180° is now called Hawk Power Cool 180°. The formulation remains unchanged; this is simply a rebranding.