Penrite Radiator Corrosion Inhibitor Concentrate 1 L COOL1001
Keep your vehicles cooling system in perfect order with Penrite Green Radiator Corrosion Inhibitor Concentrate. The concentrated corrosion inhibitor features hybrid organic acid technology (HOAT), lowering coolant temperatures and offers long term protection for up to 100 000km Penrite Green RCI is designed to provide better heat dissipation by preventing cavitation, decreasing operating temperatures and protecting your engine. It is compatible with all rubber hoses, seals and gaskets and will provide protection to all metals such as aluminium, brass and copper. Penrite Green RCI is concentrated, for best results mix 50mL per 1 Litre of demineralised water, making up to 20L of coolant. To find the correct coolant suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
Keep your vehicles cooling system in perfect order with Penrite Green Radiator Corrosion Inhibitor Concentrate. The concentrated corrosion inhibitor features hybrid organic acid technology (HOAT), lowering coolant temperatures and offers long term protection for up to 100 000km Penrite Green RCI is designed to provide better heat dissipation by preventing cavitation, decreasing operating temperatures and protecting your engine. It is compatible with all rubber hoses, seals and gaskets and will provide protection to all metals such as aluminium, brass and copper. Penrite Green RCI is concentrated, for best results mix 50mL per 1 Litre of demineralised water, making up to 20L of coolant. To find the correct coolant suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
Keep your vehicles cooling system in perfect order with Penrite Green Radiator Corrosion Inhibitor Concentrate. The concentrated corrosion inhibitor features hybrid organic acid technology (HOAT), lowering coolant temperatures and offers long term protection for up to 100 000km Penrite Green RCI is designed to provide better heat dissipation by preventing cavitation, decreasing operating temperatures and protecting your engine. It is compatible with all rubber hoses, seals and gaskets and will provide protection to all metals such as aluminium, brass and copper. Penrite Green RCI is concentrated, for best results mix 50mL per 1 Litre of demineralised water, making up to 20L of coolant. To find the correct coolant suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
Keep your vehicles cooling system in perfect order with Penrite Green Radiator Corrosion Inhibitor Concentrate. The concentrated corrosion inhibitor features hybrid organic acid technology (HOAT), lowering coolant temperatures and offers long term protection for up to 100 000km Penrite Green RCI is designed to provide better heat dissipation by preventing cavitation, decreasing operating temperatures and protecting your engine. It is compatible with all rubber hoses, seals and gaskets and will provide protection to all metals such as aluminium, brass and copper. Penrite Green RCI is concentrated, for best results mix 50mL per 1 Litre of demineralised water, making up to 20L of coolant. To find the correct coolant suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
in 10 offers
The lowest price for Penrite Radiator Corrosion Inhibitor Concentrate 1 L COOL1001 right now is $16.00 at 4wd247.com, compared across 10 retailers.
The all-time low was $7.20 on 16 July 2025 — today's price is 122% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 9 June 2026.
Last updated at 09/06/2026 19:23:49
Penrite Radiator Corrosion Inhibitor Concentrate 1L - COOL1001
Delivery $9
Penrite Green radiator corrosion inhibitor concentrate
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001 fits Hdt Commodore 5.0 SL Group A GMH 308 RWD Petrol Sedan 08/84-04/85 177kw
Delivery between 10–22 June $10.95
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Delivery $14.95
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Penrite Coolant 1L - Concentrate (Up to 15L)
PENRITE COOLANT 1L - CONCENTRATE (UP TO 15L)
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Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001
Free delivery between Fri – Tue
originally posted on repco.com.au
Australian owed company that supplies a good product at a good price.
originally posted on supercheapauto.com.au
Not so much the product, although it protects my classic cars better than original products but I would like to add that the staff in Renmark go out of their way to help. Full marksto the store
originally posted on repco.com.au
Best value concentrate on the market when mixed with water
| VEHICLE TYPE | KILOMETRES / HOURS |
| Passenger Car | 100,000 KMS |
| Light Commercial | 100,000 KMS |
| Heavy Duty On Road | 3 Years, 500,000 KMS |
| Heavy Duty Off Road | 3 Years, 6,000 Hours |
Penrite Radiator Corrosion Inhibitor Concentrate 1L - COOL1001
Delivery $9
Penrite Green radiator corrosion inhibitor concentrate
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001 fits Hdt Commodore 5.0 SL Group A GMH 308 RWD Petrol Sedan 08/84-04/85 177kw
Delivery between 10–22 June $10.95
Radiator Corrosion Inhibitor (Concentrate) - Penrite 1L
Delivery $14.95
Penrite Green Radiator Corrosion Inhibitor Concentrate Engine Coolant 1L, COOL1001
Delivery between 15–18 June $15
Australian owed company that supplies a good product at a good price.
Not so much the product, although it protects my classic cars better than original products but I would like to add that the staff in Renmark go out of their way to help. Full marksto the store
Best value concentrate on the market when mixed with water
Great product, better then Repco trade price.
Good Quality coolant as all Penrite products are. I Have always use Penrite Products for many years as I am a retired mechanic and believe you should only use products that are tried and tested to the standard of Penrite. Kevin.
It does what it says. Only Just put it in the car so will see how it goes in the long run.
I have a 35 year old Faitlane that always runs nice and cool and I put this down to maintenance and a good coolant like Penrith Radiator Inhibitor.
Very happy with this product been using Penrite for a very long time never let me down
Easy to use product that makes more than enough of required mix. Running temps of car not effected.
| VEHICLE TYPE | KILOMETRES / HOURS |
| Passenger Car | 100,000 KMS |
| Light Commercial | 100,000 KMS |
| Heavy Duty On Road | 3 Years, 500,000 KMS |
| Heavy Duty Off Road | 3 Years, 6,000 Hours |
