Automotive

Automotive

At MOTORADCO we can provide complete cooling solutions. Backed by Australia's largest radiator manufacturer and as members of the Natrad franchise, we are able to offer you nationwide support.

Our quality guarantee is that we only supply radiators that meet or exceed original equipment standards.

Car Radiators Sydney

Sprintcar Radiators made for Ferguson Motorsports.

 

Helping you get the recommended cooling levels correct.

 

NATRAD Coolant Dosing Guide

Organic Corrosion Inhibitor only—no frost protection required.

For passenger cars and light duty commercials: miniumum of 5% volume in water.

So, in a 10 litre system: 500ml of Organic Corrosion Inhibitor Concentrate and 9.5 litres of water.  

For heavy duty vehicles/engines: minimum of 7.5% volume in water.

So, in a 20 litre system: 1.5 litres of Organic Corrosion Inhibitor Concentrate and 18.5 litres of water.

Organic Corrosion Inhibitor and some antifreeze/frost protection.

For passenger cars and light duty commercials: add 10-20% of Organic Antifreeze Concentrate to the system and 5% dose of Organic Corrosion Inhibitor.

So, in a 10 litre system: 500ml of Organic Corrosion Inhibitor Concentrate, 1-2 litres of Organic Antifreeze Concentrate and 7.5-8.5 litres of water. 

For heavy duty vehicles/engines: add 10-20% Organic Inhibitor Concentrate to the system and 7.5% dose of Organic Corrosion Inhibitor.

So, in a 20 litre system: 1.5 litres of  Organic Corrosion Inhibitor Concentrate, 2-4 litres of Organic Antifreeze Concentrate and 14.5-16.5 litres of water.

10% concentration of Antifreeze in water drops freeze point approx. -4 degrees Celsius.

20% concentration of Antifreeze in water drops freeze point approx. -8 degrees Celsius.

Antifreeze/Antiboil Coolant only.

For passenger cars and light duty commercials: minimum of 33% volume in water.

So, in a 10 litre system: 3.33 litres of Organic Antifreeze Concentrate and 6.67 litres of water.

For heavy duty vehicles/engines: minimum of 50% volume in water.

So, in a 20 litre system: 10 litres of Organic Antifreeze Concentrate and 10 litres of water.

*As previously discussed, water provides the best heat transfer for the cooling system.

*If some frost protection is required, then Corrosion Inhibitor and some Antifreeze is less expensive than dosing the whole system with Antifreeze.

*If unsure of local water quality—get it tested!!