Parts for your 2014 Mitsubishi Asx-Coolant

2014 Mitsubishi ASX coolant — what it does and how to look after it

Coolant is absolutely relevant and used on the 2014 Mitsubishi ASX. Mitsubishi’s 2014 ASX owner’s manual and workshop service information specify an ethylene‑glycol, long‑life engine coolant in a sealed, pressurised cooling system, typically referred to as Mitsubishi Genuine Super Long Life Coolant. That factory spec underpins the ASX’s engine temperature control, corrosion protection and overall reliability.

In the ASX, coolant carries heat away from the engine to the radiator, keeping temperatures in the sweet spot whether it’s a frosty morning in Otago or a hot Perth arvo. Beyond temperature control, it raises the boiling point, prevents freezing, inhibits corrosion inside alloy blocks, radiators and heater cores, and lubricates the water pump. Running the correct 50/50 premix helps the engine last longer, maintains heater performance in winter and guards against scale and internal pitting that can quietly ruin a modern aluminium engine.

For servicing, the smart move is to use the correct long‑life, ethylene‑glycol coolant that meets Mitsubishi’s specification (often the blue Mitsubishi Super Long Life Coolant, pre‑mixed 50/50). Service schedules for this era commonly allow extended intervals under normal use, many workshops in Australia and New Zealand advise replacement at major intervals, or sooner under severe conditions. Always check the service book for the exact interval on the specific engine. Avoid mixing different coolant chemistries or colours, if the history is unknown or there’s been mixing, a complete flush and refill with the right stuff is the safe play.

Owners should check the translucent overflow bottle when the engine is cold, ensuring the level sits between MIN and MAX. Top up only with the same premix already in the system, if using concentrate, cut it with demineralised water. After any drain, proper bleeding to remove air is essential. During routine services, it’s wise to replace a tired radiator cap, inspect hoses and clamps, and look for any weeping around the water pump. Keep an eye out for:

• Low coolant level or a sweet smell under the bonnet
• Rusty or milky coolant colour, or debris in the bottle
• Temperature gauge creeping higher than normal, weak cabin heater, or the fan running excessively

What coolant does a 2014 Mitsubishi ASX take?

The 2014 ASX is designed for an ethylene‑glycol, long‑life coolant that meets Mitsubishi’s spec, commonly supplied as a blue, 50/50 premix (Mitsubishi Super Long Life Coolant). Sticking with the genuine or an equivalent approved long‑life coolant protects alloy components and keeps the system stable. Avoid mixing different types or colours, as inhibitors can clash and reduce protection.

How often should the coolant be changed?

Intervals vary by engine and market. Many vehicles of this era allow extended intervals for the initial fill, then shorter intervals thereafter. Check the vehicle’s service book for the exact timing. In harsher Aussie and Kiwi conditions (towing, lots of city heat soak, dusty work), changing earlier than the maximum interval is sensible insurance. If there’s any doubt about history, a flush and refill with the correct long‑life coolant is worthwhile.

Can the owner top up the ASX coolant at home?

Yes—if it’s a small top‑up, use the same 50/50 premix already in the car. Only check and top up when the engine is cold, and never open the radiator cap hot. If frequent top‑ups are needed, there may be a leak or internal issue, so it’s best to have a mechanic pressure‑test the system. If the temperature warning appears or it starts to overheat, stop safely and don’t keep driving.