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 12 offers
The lowest price for Penrite Radiator Corrosion Inhibitor Concentrate 1 L COOL1001 right now is $18.00 at Oz General Store, compared across 12 retailers.
The all-time low was $7.20 on 16 July 2025 — today's price is 150% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 26 Sept 2026.
Last updated at 26/09/2026 11:51:50
Penrite Radiator Corrosion Inhibitor 100,000 Km (Green Concentrate) (3 Sizes Available) 1L
Delivery between Wed – Fri $15
Penrite Green Radiator Corrosion Inhibitor Concentrate Engine Coolant 1L, COOL1001
14-day returns
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001 fits Ford Laser 1.6 B6 FWD Petrol Hatchback 10/85-09/87 53kw
Delivery between 28 Sept – 9 Oct $10.95
Penrite Radiator Corrosion Inhibitor 1lt COOL1001
Delivery $13.25
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001 fits FORD AUSTRALIA LASER 1.3, 1.5, 1.5 Turbo, 1.6, 1.6 i TX3, 1.6 Efi, 1.6 TX3, 1.6 T...
60-day returns
Penrite Radiator Corrosion Inhibitor Concentrate 1l Cool1001
Free delivery
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!
Penrite Rad Inhibitor 100,000 Km Concentrate 1L | COOL1001
Free delivery
Penrite Coolant 1L - Concentrate (Up to 15L) - [Coolant]
Delivery between 28 Sept – 10 Oct $23.85
Penrite Green Radiator Corrosion Inhibitor Concentrate Engine Coolant 1L, COOL1001
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001
Free delivery between Wed – Fri
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 100,000 Km (Green Concentrate) (3 Sizes Available) 1L
Delivery between Wed – Fri $15
Penrite Green Radiator Corrosion Inhibitor Concentrate Engine Coolant 1L, COOL1001
14-day returns
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001 fits Ford Laser 1.6 B6 FWD Petrol Hatchback 10/85-09/87 53kw
Delivery between 28 Sept – 9 Oct $10.95
Penrite Radiator Corrosion Inhibitor 1lt COOL1001
Delivery $13.25
Penrite Radiator Corrosion Inhibitor Concentrate 1L COOL1001 fits FORD AUSTRALIA LASER 1.3, 1.5, 1.5 Turbo, 1.6, 1.6 i TX3, 1.6 Efi, 1.6 TX3, 1.6 T...
60-day returns
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 |
