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Radiator Flush and Clean (R40)

Nulon Radiator Flush & Clean (R40) is a non-acidic, fast-acting, 20 minute cleaner that requires no-premixing. R40 reduces harmful sludge and scale from radiators and heater cores and cleans the entire cooling system safely.

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Radiator Flush and Clean (R40) - R40
R40
SDS Product Bulletin

Nulon Radiator Flush & Clean (R40) is a non-acidic radiator and cooling system cleaner that effectively cleans in one simple 20-minute operation. Many similar products have to be left in the cooling system for several days, which creates the risk of the user either forgetting or extending the drain and flush time for reasons of convenience. The results can be detrimental and cause expensive, long-term damage to the cooling system and associated components. Nulon R40 overcomes this potential risk as the whole cleaning process is completed in one simple operation.

Recommended Uses

  • Use R40 as a complete cooling system flush to remove insulating built-up sludge and residue before changing coolant in any cooling system. This procedure will ensure optimum heat transfer and efficiency of the entire cooling system.
  • Whenever draining a cooling system, or changing brands of coolant, it is always recommended to clean the system with R40.
  • Use R40 before removing a radiator from a vehicle for reconditioning. Clean the entire system with R40 so when the radiator is reinstalled, the core will not be contaminated with scale and residue from the rest of the system.

Benefits

  • Cleans fast in 20 minutes
  • Reduces overheating
  • Safe to use with all coolant types
  • No pre-mixing
  • Neutralises harmful acids
  • Reduces mineral scale and sludge

 

Directions for use

Note: Exercise caution when removing radiator caps. Release pressure slowly to avoid scalding.

  • Turn on the heater and add required amount of R40 to a warm radiator.
  • Run the engine for 20 minutes minimum (no longer than 1 hour). Stop the engine and allow it to cool.
  • Drain the system by removing the bottom radiator hose or opening the drain cock. Thoroughly flush and rinse out all old coolant. Replace the hose or close the drain cock.
  • Add Nulon R45 Ultra Cool corrosion inhibitor and clean, soft or demineralised water, or
  • Where specified, use anti-freeze/anti-boil coolant (such as Nulon Long Life Anti-Freeze/Anti-Boil).
  • Start the engine, check for leaks and top up as necessary.

Application Rates

  • All cars and light commercials - add 1 bottle
  • For trucks, tractors and large engines - add 1 bottle for every 6 litres (quarts) of cooling system capacity.

Safety / First Aid

Warning

Never mix brands of radiator products and never under-treat with radiator products.

First Aid Directions

For advice contact the Poisons Information Centre (Ph. Australia 131 126; New Zealand 0800 764 766) or a doctor (at once). If swallowed, do NOT induce vomiting. If in eyes, hold eyelids apart and flush the eye continuously with running water. Continue flushing until advised to stop by the Poisons Information Centre or a doctor or for at least 15 minutes. If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water. Continue flushing with water until advised to stop by the Poisons Information Centre or a doctor. Not to be used as a food container.

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FAQs

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

While not essential we recommend using Radiator Flush and Clean (R40) to remove insulating built-up sludge and residue before changing coolant in any cooling system.

63 of 67 people found this helpful
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Related Questions

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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Tap water quality can vary widely depending on your location. It is best to use demineralised or deionised water (Radiator & Battery Water (RCSW)), as tap water contains chemicals and minerals which can affect the performance of the coolant. 

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

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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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Yes, coolants that contain ethylene glycol are poisonous. If ingested it 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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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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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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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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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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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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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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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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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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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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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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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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The best answer to this question can be found in the Nulon Lube Guide, also available in store.

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Pack Sizes

R40

300 ml
6 Per Carton
Barcode: 9311090000186