Last updated at 04/09/2026 13:14:46
Nulon 5L Radiator And Battery Water
Delivery $12
Nulon Radiator & Battery Water 5 Litres - RCSW-5
Free 60-day returns
Nulon 5L Radiator And Battery Water
Delivery $10
Nulon Radiator & Battery Water 5 Litres - Rcsw-5
Delivery $5
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VPW - NULON Radiator & Cooling System Water, Each
Delivery by Tue $34.35
Radiator & Cooling System Water 5L RCSW
Delivery between 7–17 Sept $11.95
Nulon Radiator and Cooling System Water 5L (RCSW-5)
Delivery $8.80
Nulon Radiator & Cooling System Water - 5Ltr - RCSW-5
Delivery between 9–17 Sept $18.05
Nulon Radiator & Cooling System Water 5L
Delivery $12
Radiator & Cooling System Water
Delivery between 10–18 Sept $15
originally posted on supercheapauto.com.au
Water demineralized for use as a dilute to for your concentration cooling fluid
originally posted on supercheapauto.com.au
Needed to top up the radiator and this was exactly what I needed. Price was really reasonable
originally posted on supercheapauto.com.au
Couldn't find Penrith so I brought this one, it works at 5he same temperatures as Penrith and is a little bit cheaper so I'm happy. Will use this again I'm thinking. Thanks supercheap.
| Quality of Product | 4.7 |
Nulon 5L Radiator And Battery Water
Delivery $12
Nulon Radiator & Battery Water 5 Litres - RCSW-5
Free 60-day returns
Nulon 5L Radiator And Battery Water
Delivery $10
Nulon Radiator & Battery Water 5 Litres - Rcsw-5
Delivery $5
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
VPW - NULON Radiator & Cooling System Water, Each
Delivery by Tue $34.35
Water demineralized for use as a dilute to for your concentration cooling fluid
Needed to top up the radiator and this was exactly what I needed. Price was really reasonable
Couldn't find Penrith so I brought this one, it works at 5he same temperatures as Penrith and is a little bit cheaper so I'm happy. Will use this again I'm thinking. Thanks supercheap.
Ideal for mixing concentrated OEM coolant and adding to cooling system to ensure deposit and mineral-free system in 40 year old engine.
I bought this 2 weeks ago & like advertised it has been awesome. Better than most demineralised water brands on the market. Great size too.
When you're spending money on the Nulon coolant concentrate it's worth spending the extra to use a distilled/demineralised water. You can also use it for topping up lead acid batteries or in the iron at home when ironing your shirt for a Saturday night out.
It's just water but demineralisedImportant as I added Kseal leak sealer and filled up with this to make sure no other items in the sytem could interact with the Kseal and stop it from working
Happy with this product will use again it works well why change
Purchased this to add to a concentrated coolant. However the top was not on properly and I didn’t notice when I took it from the shelf so it tipped over in the car and soaked the rear seats. Only 1/4 left when I noticed. Note to self.... Check tops for security in future !
Perfect for use in mixing Concentrated Coolant. Recommend 50 percent mix with your concentrate Coolant.
| Quality of Product | 4.7 |
For correct oil/lubricant or more information, go to the Nulon Website. Ensures optimum coolant additive performance protection over the life of the coolant Guaranteed to provide cleaner and more efficient cooling over tap waterDo it Once Do it Right Radiator water contains fewer reactive chemicals resulting in optimum coolant life, system protection and anti-freeze and anti-boil performance. All Nulon Pre-Mixed and Top-Up coolants use our premium De-Ionised and De-Mineralised Radiator Water.
For correct oil/lubricant or more information, go to the Nulon Website. Ensures optimum coolant additive performance protection over the life of the coolant Guaranteed to provide cleaner and more efficient cooling over tap waterDo it Once Do it Right Radiator water contains fewer reactive chemicals resulting in optimum coolant life, system protection and anti-freeze and anti-boil performance. All Nulon Pre-Mixed and Top-Up coolants use our premium De-Ionised and De-Mineralised Radiator Water.
Nulon Radiator Cooling System Water - 5 Litre
For correct oil/lubricant or more information, go to the Nulon Website. Ensures optimum coolant additive performance protection over the life of the coolant Guaranteed to provide cleaner and more efficient cooling over tap waterDo it Once Do it Right Radiator water contains fewer reactive chemicals resulting in optimum coolant life, system protection and anti-freeze and anti-boil performance. All Nulon Pre-Mixed and Top-Up coolants use our premium De-Ionised and De-Mineralised Radiator Water.
For correct oil/lubricant or more information, go to the Nulon Website. Ensures optimum coolant additive performance protection over the life of the coolant Guaranteed to provide cleaner and more efficient cooling over tap waterDo it Once Do it Right Radiator water contains fewer reactive chemicals resulting in optimum coolant life, system protection and anti-freeze and anti-boil performance. All Nulon Pre-Mixed and Top-Up coolants use our premium De-Ionised and De-Mineralised Radiator Water.
in 22 offers
The lowest price for Nulon Radiator Cooling System Water - 5 Litre right now is $7.75 at Bunnings Warehouse, compared across 17 retailers.
The all-time low was $4.87 on 27 July 2025 — today's price is 59% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 4 Sept 2026.
