Parts for your 2019 Mitsubishi Eclipse cross-Coolant

2019 Mitsubishi Eclipse Cross coolant — purpose, type and service tips

According to the 2019 Mitsubishi Eclipse Cross Owner’s Manual and Mitsubishi service literature, the Eclipse Cross (1.5‑litre turbo petrol) runs a pressurised liquid cooling system that uses ethylene glycol–based engine coolant. So yes—coolant is very much relevant and fitted to this vehicle.

Coolant in a 2019 Eclipse Cross does far more than stop overheating. It carries heat away from the engine, raises the boiling point and lowers the freezing point, lubricates the water pump, and protects the alloy block, radiator and heater core from corrosion and scale. Mitsubishi specifies a long‑life, premixed coolant—typically Mitsubishi Genuine Super Long Life Coolant—to deliver that protection over extended service intervals.

For day‑to‑day ownership in Australia and New Zealand, the advice is simple: stick with a quality, ethylene glycol long‑life coolant that meets Mitsubishi’s spec, ideally the genuine premix. Avoid mixing brands or colours, if the history is unknown or a different type has been used, a complete flush and refill with the correct coolant is the safe play.

Service timing can vary by market, but Mitsubishi’s guidance for long‑life coolant generally calls for inspection at every service, with a first replacement around the long‑interval mark (often in the 8–10 year or ~160,000 km range), then at shorter intervals thereafter (commonly ~4–5 years or ~80,000 km). Always follow the AU/NZ Warranty & Maintenance booklet for the vehicle’s exact schedule. If the car tows, sees lots of stop‑start, or has had overheating episodes, bring the change forward.

• Check level when the engine is cold, the reservoir should sit between MIN and MAX.
• Only top up with the same premix, if using concentrate, blend with demineralised water to the correct ratio (often 50/50).
• Never remove the radiator cap when hot, scalding risk.
• After a change, bleed air properly to avoid hot spots and erratic heater performance.
• Watch for crusty deposits, sweet odour, discoloured coolant, or dampness around hoses, the water pump or radiator—early signs of leaks.
• Dispose of old coolant responsibly, it’s toxic to pets and wildlife.

Look after the coolant and the Eclipse Cross rewards with stable temps, a happy turbo, and a long‑lived water pump, radiator and heater core.

Popular questions about 2019 Mitsubishi Eclipse Cross coolant

What coolant type does a 2019 Mitsubishi Eclipse Cross use?
Mitsubishi specifies an ethylene glycol–based, long‑life coolant, typically Mitsubishi Genuine Super Long Life Coolant supplied as a premix. Using the genuine fluid or an equivalent that meets Mitsubishi’s spec keeps corrosion inhibitors and service life on point. Avoid mixing different coolant chemistries or colours.

How often should the coolant be changed in Australia or New Zealand?
Inspect the level and condition at every service. The factory long‑life fill is designed for extended intervals—commonly around 8–10 years or about 160,000 km for the first change, then roughly every 4–5 years or 80,000 km. Check the AU/NZ maintenance schedule for your VIN and bring the interval forward if the vehicle tows, works hard, or has had cooling issues.

Can it be topped up with water in a pinch?
If absolutely necessary, a small amount of demineralised water can be used to get home. Then restore the correct concentration by draining to the proper level and refilling with the specified premix. Avoid tap water as minerals can cause scale and corrosion over time.