Last updated at 04/09/2026 18:48:01
Penrite Radiator Corrosion Inhibitor 100,000 Km (Green Concentrate) (3 Sizes Available) 500mL
Delivery between Wed – Thu $15
Penrite Radiator Corrosion Inhibitor Concentrate 0.5L COOL10005 fits Ford Laser 1.6 B6 FWD Petrol Hatchback 10/85-09/87 53kw
Delivery between 7–17 Sept $11.95
Penrite Rad Inhibitor 100,000 Km Concentrate 500ML | COOL10005
Delivery $12
Penrite Radiator Corrosion Inhibitor Concentrate 0.5l Cool10005
Delivery $6.95
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 Radiator Corrosion Inhibitor Concentrate Engine Coolant, 500 ml, COOL10005
Delivery between 11–14 Sept $15
Penrite Radiator Corrosion Inhibitor Concentrate 500ml - COOL10005
Delivery between 9–17 Sept $9
RCI 100 Radiator Corrosion Inhibitor
Delivery between 10–18 Sept $15
Penrite Radiator Corrosion Inhibitor 500ml COOL10005
Delivery between 10–17 Sept $20.05
Penrite Radiator Corrosion Inhibitor (Concentrate) 500ml
Delivery $15
Penrite Green Radiator Corrosion Inhibitor Concentrate - 500mL
Delivery between Tue – Thu $9.99
originally posted on supercheapauto.com.au
All I needed at a good price. Very helpful staff made it easy to choose.
originally posted on supercheapauto.com.au
Good product: Mazda Rx7 Turbo modified..............
originally posted on supercheapauto.com.au
Handy travel Size Great product, Value for Money..
| 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) 500mL
Delivery between Wed – Thu $15
Penrite Radiator Corrosion Inhibitor Concentrate 0.5L COOL10005 fits Ford Laser 1.6 B6 FWD Petrol Hatchback 10/85-09/87 53kw
Delivery between 7–17 Sept $11.95
Penrite Rad Inhibitor 100,000 Km Concentrate 500ML | COOL10005
Delivery $12
Penrite Radiator Corrosion Inhibitor Concentrate 0.5l Cool10005
Delivery $6.95
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 Radiator Corrosion Inhibitor Concentrate Engine Coolant, 500 ml, COOL10005
Delivery between 11–14 Sept $15
All I needed at a good price. Very helpful staff made it easy to choose.
Good product: Mazda Rx7 Turbo modified..............
Handy travel Size Great product, Value for Money..
Does what it says on the bottle. Mix with water, equals coolant.
good value for money, Just pour into radiator and add water.....simple!
Instructions can be weak. It still may be too early to really tell.
Small container easy to transport just add water when ur ready
did as bottle says. still no issues. will update in a few months if still worth it
good value best way to buy coolant no waste with big bottle
It's good product worthy to use every 15,000 kilometer or more flash clean the radiator add penrite use with guide directed on the bottle .
| 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 500ml - COOL10005
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 10L 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 10L 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 10L 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 10L 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 16 offers
The lowest price for Penrite Radiator Corrosion Inhibitor Concentrate 500ml - COOL10005 right now is $10.00 at Oz General Store, compared across 16 retailers.
The all-time low was $8.67 on 11 Dec 2025 — today's price is 15% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 4 Sept 2026.
