Nulon Extreme Cooling System Flush and Degreaser is a 3 in 1 alkaline cleaning solution for heavily contaminated radiators and cooling systems. Ideal for use where there has been head gasket failure causing oil and fuel to contaminate the cooling system, the 3 in 1 formulation strips oil, grease and scale contaminants from the inside of hoses and metal surface areas to be flushed away. Safe for use in all vehicle cooling systems. Does not harm metal surfaces, gaskets, hoses or plastic parts.
Nulon Extreme Cooling System Flush and Degreaser is a 3 in 1 alkaline cleaning solution for heavily contaminated radiators and cooling systems. Ideal for use where there has been head gasket failure causing oil and fuel to contaminate the cooling system, the 3 in 1 formulation strips oil, grease and scale contaminants from the inside of hoses and metal surface areas to be flushed away. Safe for use in all vehicle cooling systems. Does not harm metal surfaces, gaskets, hoses or plastic parts.
Nulon Pro-Strength Extreme Cooling System Flush & Degreaser 500ml
Nulon Extreme Cooling System Flush and Degreaser is a 3 in 1 alkaline cleaning solution for heavily contaminated radiators and cooling systems. Ideal for use where there has been head gasket failure causing oil and fuel to contaminate the cooling system, the 3 in 1 formulation strips oil, grease and scale contaminants from the inside of hoses and metal surface areas to be flushed away. Safe for use in all vehicle cooling systems. Does not harm metal surfaces, gaskets, hoses or plastic parts.
Nulon Extreme Cooling System Flush and Degreaser is a 3 in 1 alkaline cleaning solution for heavily contaminated radiators and cooling systems. Ideal for use where there has been head gasket failure causing oil and fuel to contaminate the cooling system, the 3 in 1 formulation strips oil, grease and scale contaminants from the inside of hoses and metal surface areas to be flushed away. Safe for use in all vehicle cooling systems. Does not harm metal surfaces, gaskets, hoses or plastic parts.
in 21 offers
The lowest price for Nulon Pro-Strength Extreme Cooling System Flush & Degreaser 500ml right now is $19.32 at Allied Auto Online, compared across 19 retailers.
The all-time low was $13.16 on 29 July 2025 — today's price is 47% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 2 Sept 2026.
Last updated at 02/09/2026 03:26:16
Nulon Pro-Strength Extreme Cooling System Flush & Degreaser 500ml - PSCSF
Free 60-day returns
Nulon PSCSF Pro-Strength Extreme Cooling System Flush & Degreaser
Delivery between 2–14 Sept $10.95
Nulon PSCSF Pro Strength Extreme Cooling System Flush Degreaser 500ml Removes Oil Grease Rust Scale Silicate Gel
Delivery $8
Pro-Strength Extreme Cooling System Flush Degreaser
Nulon Pro Strength Xtreme Cooling System 500ml
Delivery $12
Nulon Pro-Strength Extreme Cooling System Flush & Degreaser 500ML - PSCSF | OnlineAutoParts.com.au
Delivery between Fri – Tue $6.13
Nulon Pro-Strength Extreme Cooling System Flush and Degreaser 500ML (PSCSF)
Delivery by Sat $8.80
Nulon - Pro Strength Extreme Cooling System Flush & Degreaser 500ml
Nulon Extreme Cooling System Flush & Degreaser 500ml
Delivery between 3–10 Sept $10
Pro Strength Xtreme Cooling System 500ml PSCSF | Nulon | Coolant
Delivery between 7–15 Sept $20
originally posted on supercheapauto.com.au
I had a cooling system badly affected by oil - after a couple of these flushes it is almost clean. Slick soapy stuff it seems to break down and separate the oil well. Takes a few doses so it gets expensive, but I’m going to do another flush to finish the job, I like the stuff.
originally posted on supercheapauto.com.au
Followed directions worked well definitely cleaned out the sludge. Used ay home no issues.
originally posted on supercheapauto.com.au
Excellent product that was easy to use and fully cleaned the cooling system. Engine is now clean of oily contamination and ready for fresh new coolant .
| Warranty Information | 12 Months |
Nulon Pro-Strength Extreme Cooling System Flush & Degreaser 500ml - PSCSF
Free 60-day returns
Nulon PSCSF Pro-Strength Extreme Cooling System Flush & Degreaser
Delivery between 2–14 Sept $10.95
Nulon PSCSF Pro Strength Extreme Cooling System Flush Degreaser 500ml Removes Oil Grease Rust Scale Silicate Gel
Delivery $8
Pro-Strength Extreme Cooling System Flush Degreaser
Nulon Pro Strength Xtreme Cooling System 500ml
Delivery $12
I had a cooling system badly affected by oil - after a couple of these flushes it is almost clean. Slick soapy stuff it seems to break down and separate the oil well. Takes a few doses so it gets expensive, but I’m going to do another flush to finish the job, I like the stuff.
Followed directions worked well definitely cleaned out the sludge. Used ay home no issues.
Excellent product that was easy to use and fully cleaned the cooling system. Engine is now clean of oily contamination and ready for fresh new coolant .
This Nulon product bubbles up in system pretty hard,helped loosened up muck in a family members dirty cooling system,would attribute some of this loosening muck from using this product and Nulon demineralized water.
Nice detergent for whole cooling system removes all the contaminants and prepares for a new coolant. Safe for a hoses and radiator, even flushes oil residuals and grime - had them occasionally mixed in Ford Transit due to cooler failure.
Used it to flush my coolant system on an Astra that was in extremely bad condition and 3 weeks later it is still as good as new.
Nulon extreme radiator cleaner is Great flushed out HEAPS of muck from cooling system
Great additive ran a combination of distilled and tap wzter due to a hole in radiator took ages to get one finally arrived flushed system before putting new radiator and the crap that came out flushed it clean only took one go.
Flushing the coolant on my JZX100 Chaser 1JZGTE.Looked like it hadn't been changed in 5 years, so much dirt and crud in the system it was bad. Didn't need toI had flushed the system at least 15 times with the thermostat out and the heater on and still kept getting what you see in the muddy bottle.Got over it so went to super cheap and got Nulon extreme flush.Should have done it from the start. Was clear as day after leaving it in there for 90 mins and then taking for a spirited 20 min drive where I may have redlined it a little bit down at the local industrial area.It'll take some more flushes to get the sud's from the product out but well worth it. The clear bottle is now what it looks like after. Perfect.
Could be cheaper it works not bad .....................
| Warranty Information | 12 Months |
