Penrite Radiator Corrosion Inhibitor - Protects against cavitation, scaling and oxidisation Penrite Radiator Corrosion Inhibitor Concentrate is a Type 'B', radiator corrosion inhibitor that protects against cavitation, scaling and oxidisation in vehicles that do not require a Type '' Anti-Freeze Anti-Boil coolant. It is an effective engine coolant that uses a Hybrid Organic Acid Technology (HOAT) inhibitor to provide maximum protection against corrosion whilst providing superior heat transfer to reduce engine operating temperature. Penrite Radiator Corrosion Inhibitor is suitable for use in a wide range of vehicles including passenger cars, light commercials vehicles, motorcycles, trucks, buses, stationary engines and other equipment. Penrite Radiator Corrosion Inhibitor when mixed with water will help provide improved heat transfer abilities over straight water by reducing cavitation and eliminating hot spots inside the engine. This can help lower the running temperature of the engine, preventing damage from overheating whilst the inhibitor pack will prevent rust, corrosion, scaling and oxidation if maintained at the correct dosage. DOSAGE: Radiator Corrosion Inhibitor should be used at a ratio of 50ml per litre of water. Penrite recommend mixing with Penrite De-Mineralised Water 1 litre makes up to 20 litres of coolant. Penrite also offer a range of gear oils, transmission fluids, engine additives and so much more.
Penrite Radiator Corrosion Inhibitor - Protects against cavitation, scaling and oxidisation Penrite Radiator Corrosion Inhibitor Concentrate is a Type 'B', radiator corrosion inhibitor that protects against cavitation, scaling and oxidisation in vehicles that do not require a Type '' Anti-Freeze Anti-Boil coolant. It is an effective engine coolant that uses a Hybrid Organic Acid Technology (HOAT) inhibitor to provide maximum protection against corrosion whilst providing superior heat transfer to reduce engine operating temperature. Penrite Radiator Corrosion Inhibitor is suitable for use in a wide range of vehicles including passenger cars, light commercials vehicles, motorcycles, trucks, buses, stationary engines and other equipment. Penrite Radiator Corrosion Inhibitor when mixed with water will help provide improved heat transfer abilities over straight water by reducing cavitation and eliminating hot spots inside the engine. This can help lower the running temperature of the engine, preventing damage from overheating whilst the inhibitor pack will prevent rust, corrosion, scaling and oxidation if maintained at the correct dosage. DOSAGE: Radiator Corrosion Inhibitor should be used at a ratio of 50ml per litre of water. Penrite recommend mixing with Penrite De-Mineralised Water 1 litre makes up to 20 litres of coolant. Penrite also offer a range of gear oils, transmission fluids, engine additives and so much more.
Penrite Radiator Corrosion Inhibitor Concentrate 20L - COOL1020
Penrite Radiator Corrosion Inhibitor - Protects against cavitation, scaling and oxidisation Penrite Radiator Corrosion Inhibitor Concentrate is a Type 'B', radiator corrosion inhibitor that protects against cavitation, scaling and oxidisation in vehicles that do not require a Type '' Anti-Freeze Anti-Boil coolant. It is an effective engine coolant that uses a Hybrid Organic Acid Technology (HOAT) inhibitor to provide maximum protection against corrosion whilst providing superior heat transfer to reduce engine operating temperature. Penrite Radiator Corrosion Inhibitor is suitable for use in a wide range of vehicles including passenger cars, light commercials vehicles, motorcycles, trucks, buses, stationary engines and other equipment. Penrite Radiator Corrosion Inhibitor when mixed with water will help provide improved heat transfer abilities over straight water by reducing cavitation and eliminating hot spots inside the engine. This can help lower the running temperature of the engine, preventing damage from overheating whilst the inhibitor pack will prevent rust, corrosion, scaling and oxidation if maintained at the correct dosage. DOSAGE: Radiator Corrosion Inhibitor should be used at a ratio of 50ml per litre of water. Penrite recommend mixing with Penrite De-Mineralised Water 1 litre makes up to 20 litres of coolant. Penrite also offer a range of gear oils, transmission fluids, engine additives and so much more.
Penrite Radiator Corrosion Inhibitor - Protects against cavitation, scaling and oxidisation Penrite Radiator Corrosion Inhibitor Concentrate is a Type 'B', radiator corrosion inhibitor that protects against cavitation, scaling and oxidisation in vehicles that do not require a Type '' Anti-Freeze Anti-Boil coolant. It is an effective engine coolant that uses a Hybrid Organic Acid Technology (HOAT) inhibitor to provide maximum protection against corrosion whilst providing superior heat transfer to reduce engine operating temperature. Penrite Radiator Corrosion Inhibitor is suitable for use in a wide range of vehicles including passenger cars, light commercials vehicles, motorcycles, trucks, buses, stationary engines and other equipment. Penrite Radiator Corrosion Inhibitor when mixed with water will help provide improved heat transfer abilities over straight water by reducing cavitation and eliminating hot spots inside the engine. This can help lower the running temperature of the engine, preventing damage from overheating whilst the inhibitor pack will prevent rust, corrosion, scaling and oxidation if maintained at the correct dosage. DOSAGE: Radiator Corrosion Inhibitor should be used at a ratio of 50ml per litre of water. Penrite recommend mixing with Penrite De-Mineralised Water 1 litre makes up to 20 litres of coolant. Penrite also offer a range of gear oils, transmission fluids, engine additives and so much more.
in 4 offers
The lowest price for Penrite Radiator Corrosion Inhibitor Concentrate 20L - COOL1020 right now is $294.00 at Oz General Store, compared across 4 retailers.
The all-time low was $31.90 on 21 Aug 2026 — today's price is 822% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 11 Sept 2026.
Last updated at 11/09/2026 16:02:37
Penrite Radiator Corrosion Inhibitor 100,000 Km (Green Concentrate) (3 Sizes Available) 20L
Delivery between Wed – Thu $15
Penrite Radiator Corrosion Inhibitor Concentrate 20L - COOL1020
Free delivery
1 x PENRITE RADIATOR CORROSION INHIBITOR 20L COOL1020
Delivery between Wed – Fri $15
Radiator Corrosion Inhibitor (Concentrate) - Penrite 20L
Delivery between 17–21 Sept $6.95
| 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 |
| Stationary Power Generation | 12,000 Hours |
Penrite Radiator Corrosion Inhibitor 100,000 Km (Green Concentrate) (3 Sizes Available) 20L
Delivery between Wed – Thu $15
Penrite Radiator Corrosion Inhibitor Concentrate 20L - COOL1020
Free delivery
1 x PENRITE RADIATOR CORROSION INHIBITOR 20L COOL1020
Delivery between Wed – Fri $15
Radiator Corrosion Inhibitor (Concentrate) - Penrite 20L
Delivery between 17–21 Sept $6.95
| 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 |
| Stationary Power Generation | 12,000 Hours |