Ultra Cool

Ultra Cool

Nulon Ultra Cool Anti-Corrosion Radiator Coolant (R45) is formulated to provide maximum rust and corrosion protection for your engine's cooling system. It will keep your radiator and cooling system clean and free from corrosion, electrolysis, rust and scale build-up. Nulon Ultra Cool protects aluminium, copper, cast iron, brass and solder, and extends the life of all cooling system components.

Suits pre-1984 cooling system requirements

NOT suitable where anti-freeze/anti-boil coolant is specified. Use Nulon Long Life Concentrated Coolant (LL) for anti-freeze/anti-boil protection.

Nulon Ultra Cool (R45) contains corrosion inhibitors and is designed to provide maximum heat transfer in cooling systems where anti-freeze/anti-boil (glycol) is not specified. Heat transfer in the cooling system is done predominantly by water which has an excellent heat transfer coefficient. Glycol has the ability to extend the operating temperature range of a coolant, however it has a higher heat transfer coefficient than that of water. This is the main reason why non-glycol based coolants transfer heat much more efficiently than glycol based coolants.

In motor sport applications, Nulon Ultra Cool (R45) is a suitable alternate to glycol based coolant. Glycol is very slippery and is difficult to remove from the race track surfaces, which poses risks to other drivers on the track.

The use of tap water is not recommended for automotive cooling systems. Chlorine is usually added to tap water in order to kill bacteria and make it safe for drinking. However chlorine is found to be corrosive in cooling systems. Tap water also contains minerals that can cause scaling when used in a cooling system. Use suitable demineralised water for use with R45.

Where a vehicle manufacturer particularly specifies the use of anti-freeze/anti-boil coolant with glycol it is essential to use it as some engines suffer from localised "hot spot" boiling and require a glycol coolant.

Benefits

  • Provides protection for up to 2 years or 40,000 km
  • Concentrated solution - makes 10 litres
  • Recommended for motor sport use
  • Exceeds Australian Standard AS 2108-2004 Type B coolant
  • Recommended for motor sport because it contains no glycol
  • Harmless to hoses & seals
  • Protects all cooling systems against corrosion, rust & scale

Refer to your owner's manual for cooling system capacity. NOTE: If the cooling system is dirty or rusty, clean it with Nulon R40 Radiator Flush and Clean. Half-fill the system with clean soft or demineralised water. Add the required amount of Nulon R45 (refer to the owners' manual for capacity) and top up with water as specified above. Run the engine to circulate and remove any airlocks, check the level and top up if necessary, check for leaks and secure the radiator cap. Repeat this treatment every 40,000 km or once every 2 years, whichever occurs first. Top-up should always be with the correct ratio of R45 and demineralised water.

Application Rates

Add at 5% of cooling system capacity, i.e. if the system holds 10 litres, add 500 ml.

Warning

Under no circumstances mix radiator products of different brands, and never under-treat with radiator products.

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Frequently Asked Questions

Is distilled water suitable to add with Nulon coolants?

1 year ago

Yes it is suitable but often more expensive than demineralised or deionised water.

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What is meant by Type A and Type B coolant?

10 months ago

In 1977 an Australian Standard was created to help regulate the quality and performance of automotive coolants in the Australian passenger car and light commercial market. The current standard is known as AS2108-2004. Type A coolants are antifreeze/antiboil coolants with corrosion inhibitor that comply with the requirements of this standard. Type B coolants are coolants with corrosion inhibitors only that comply with the requirements of this standard.

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Related Questions

How do I change my coolant?

1 week ago

We show you how to change your vehicle's coolant in this easy step by step video. 

Nulon shows you how to change your vehicle's coolant in an easy step by step process. 
All you need to do this is: car jack, jack stands or ramps, screwdriver, socket or spanner, drain plug washer, oil drain pan, some rags, container for the used coolant, Gloves and Nulon Long Life Coolant.

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Is rain water suitable to add with Nulon coolants?

1 year ago

It is best to use deminalised or deionised water. Uncontaminated rain water is OK but if collected from roofs and gutters it can contain impurites which may affect coolant performance. Metal roofing materials, concrete roof tiles and tanks, dirt and dust, all contaminate rain water. These conatanimants have an adverse effect on your vehicle cooling system.

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Do you guarantee my cooling system wont corrode?

1 year ago

Using the correct type of coolant is essential. The Nulon Lube Guide can provide a guide to you coolant requirements. If directions of use are followed correctly Nulon coolants will protect the system from corrosion for the recommended life of the coolant.

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Can I mix different colour coolants?

1 year ago

No, coolant colour alone does not specify the chemical technology of the coolant. It is important to note that when coolants of different technology are mixed the performance is compromised.

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What is the difference between soft, demineralised and deionised water?

10 months ago

Soft water, demineralised and deionised water are terms used to describe water which has low levels of dissolved mineral salts and ions of such metals as calcium, iron, or magnesium.

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The coolant I purchased has changed colour in the bottle. Has it gone off ?

10 months ago

No, it is OK to use. Dye is added to coolant for identification purposes. The dye used to colour the coolant, green, red, etc can be affected by sunlight and age but this does not effect the performance of the coolant.

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I have had a bottle of coolant in my garage for a few years. Does it have a use by date?

10 months ago

Nulon coolants do have a shelf life. Nulon coolants that are green in colour have a shelf life of three years. Nulon coolants that are red in colour have a shelf life of five years.

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Is coolant poisonous?

10 months ago

Yes, coolants that contain ethylene glycol are poisonous. If ingested if affects the central nervous system and can cause death. Nulon adds a bittering agent to its coolants that contain ethylene glycol to prevent accidental ingestion from children or pets. Help can be sourced via Poisons Information Centre : Australia phone 131 126, New Zealand phone 0800 764 766

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Why do I need antifreeze coolant when I don’t live in a cold climate?

10 months ago

Most modern cars run their cooling systems at temperatures close to 100 degrees celsius. The bonus of using the antifreeze chemical (glycol) in coolant is that it also raises the boiling point. This gives protection against localised or hot spot boiling which can cause engine damage.

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Is tap water suitable to add with Nulon coolants?

1 year ago

Tap water quality can vary widley depending on your location. It is best to use deminalised or deionised water, as tap water contains chemicals and minerals which can effect the performance of the coolant.

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Where can I dispose of old coolant?

1 year ago

Contact your local waste facilities or environmental protection agency. Used coolants can contain environmentally unfriendly materials that have originated from the engine cooling system and need appropriate disposal. Do not drain used coolant onto the ground or into storm water.

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What is ethylene glycol?

10 months ago

Ethylene glycol is a product used in automotive coolants to give the coolant a lower freezing point and higher boiling point. This allows vehicles to operate in sub zero climates and also allows engine coolants to reach higher temperatues before boiling.

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What type of coolant suits my car?

10 months ago

The best answer to this question can be found in the Nulon Lube Guide, also available in store.

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What ratio of coolant do I need?

10 months ago

This depends on the type of coolant your car requires and the climate extremes that your vehicle will operate in. Consult the Nulon Lube Guide for the suitable coolant type, consult your vehicle handbook and follow directions of use on label to determine the required ratio.

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What are IAT, OAT, HAT coolants?

10 months ago

These abbreviations refer to the technology used in the corrosion protection component of a coolant. IAT is Inorganic Additive Technology (often termed Conventional Technology), OAT is Organic Additive Technology, and HAT is Hybrid Additive Technology. To determine the best technology option and the preferred coolant for your car refer to the Nulon Lube Guide instore or online.

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Do I need to use Radiator Flush and Clean in my cooling system?

10 months ago

While not essential we recommend using Radiator Flush and Clean to remove insulating built-up sludge and residue before changing coolant in any cooling system.

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Why does my car need coolant?

10 months ago

Internal combustion engine generate large amounts of heat. "Coolant" simpy means a liquid that provides  temperature-transferring properties. In an automotive cooling system it is required to transfer heat from the engine whilst protecting the engine from corrosion (i.e. rust) and erosion which can be caused by fluid movement. Many automotive coolants also have added chemicals to extend the operating temperature range of the fluid. These are known as antifreeze/antiboil coolants.

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