Parts for your 2017 Holden Commodore-Radiator

2017 Holden Commodore Radiator — Purpose, Maintenance and Replacement

Based on technical references such as the Holden VF Series II Owner’s Manual (Cooling System section) and GM Global Service Information for the 2017 VF II models, the 2017 Holden Commodore uses a liquid-cooling system with an aluminium crossflow radiator and electric cooling fans. This makes the radiator a fully relevant, standard-fitted component across its petrol and LPG engines.

The radiator’s job on a 2017 Holden Commodore is simple but vital: it pulls heat out of the engine coolant and sheds it to the air, keeping engine temperatures in the sweet spot whether it’s idling in summer traffic or stretching its legs on the open road. With an alloy core and plastic tanks, plus thermostatically controlled electric fans, it’s designed for efficient heat exchange, quiet operation, and long service life when the right coolant is used.

As part of regular servicing, the radiator and cooling system deserve a proper once-over. Coolant level and condition should be checked with the engine cold, and any signs of rust, sludge, or oil contamination mean it’s time for a flush and refill with a Holden-approved OAT coolant (Dex-Cool type) that meets GM specifications. A 50/50 pre-mix is generally spot on for local climates, providing the right corrosion protection and freeze/boil-over margins.

It’s smart to inspect hoses, clamps, the radiator cap, and the thermostat operation, along with the fan shroud and electric fans. Minor seepage around end tanks or the radiator core can turn into a bigger drama quickly, and discoloured coolant or repeated top-ups often points to a leak. If the temp gauge creeps up, there’s a sweet coolant smell, or there are pink/orange crusty deposits near hose joins, book it in before it becomes a head gasket story.

• Service checks: coolant level/colour, leaks, hose softness/cracks, cap seal, fan operation.
• Coolant service: flush and refill at the interval in the logbook (commonly around 5 years or by kilometres, whichever comes first), using GM-approved OAT coolant.
• Replacement tips: choose a quality radiator to OE spec, renew hoses and cap if they’re aging, bleed air properly, and verify fan cycling after refill.

Look after the radiator and the Commodore stays cool, efficient, and happy on Aussie and Kiwi roads.

Popular questions about the 2017 Holden Commodore radiator

What coolant should be used in a 2017 Holden Commodore?
Use a Holden-approved OAT (Dex-Cool type) coolant that meets GM specifications. A quality 50/50 pre-mix is ideal. Avoid mixing green or unknown coolants with Dex-Cool types—if uncertain, flush and refill with the correct product.

How often should the coolant be changed?
Follow the vehicle’s service schedule in the logbook—commonly around every 5 years or the stated kilometre interval. Always check service history and condition, contaminated or discoloured coolant should be changed sooner.

Is it safe to drive with a leaking radiator?
Best not. A small leak can rapidly lead to overheating, which risks major engine damage. Top up only as an emergency measure and get the system inspected and repaired promptly.