Parts for your 1995 Mitsubishi Pajero-Coolant

1995 Mitsubishi Pajero Coolant

Coolant is absolutely used and relevant on the 1995 Mitsubishi Pajero. The model’s liquid-cooled engines (including the 3.0L/3.5L V6 petrol and 2.8L 4M40 diesel) rely on a pressurised radiator-and-thermostat system circulating ethylene-glycol engine coolant. This is detailed in the Mitsubishi Pajero NH–NL Factory Service Manual, Group 14: Cooling, and the 1995 Owner’s Manual, with additional guidance echoed in workshop references such as Gregory’s Pajero/Montero manual (1983–1996). These sources specify ethylene‑glycol based coolant meeting automotive standards (e.g., ASTM D3306/JIS K2234) for corrosion protection and temperature control.

For a 1995 Pajero, coolant does more than stop freezing and boiling. It stabilises temperatures in Aussie and Kiwi conditions, protects alloy and cast-iron components from corrosion, lubricates the water pump, and helps keep heater performance on point. A correct 50/50 mix with demineralised water is the sweet spot for most climates, giving proper boil-over protection and inhibitor balance. Avoid topping up with plain water unless it’s an emergency, and match any top-up to the coolant type already in the system—don’t mix types.

As part of regular servicing, it’s smart to test concentration with a hydrometer/refractometer and replace coolant on time. Conventional green coolant of this era was typically changed about every 2 years or around 40,000 km, long-life blends can stretch further, but always follow the vehicle handbook or the service manual for the exact interval and spec. When replacing, drain the radiator and block (where accessible), refill slowly with the heater set to hot, and bleed air from the system to avoid hot spots or erratic heater output. Inspect hoses, clamps, radiator core, thermostat operation, and the radiator cap seal, a tired cap can cause loss of pressure and early boil-over. On 4M40 diesels and models with rear heaters, take extra care bleeding to purge any trapped air in the longer pipe runs.

If towing, touring, or working hard in high ambient temps, consider shorter change intervals and keep the fins clean and straight so the fan and airflow can do their job. Dispose of old coolant responsibly—ethylene glycol is toxic to pets and wildlife.

• Use ethylene-glycol coolant meeting ASTM D3306/JIS K2234.
• Maintain roughly a 50/50 mix with demineralised water.
• Change on time, check hoses, cap, and thermostat each service.

Popular questions about 1995 Mitsubishi Pajero coolant

What coolant type and mix ratio should be used?
Use a quality ethylene-glycol based coolant meeting ASTM D3306/JIS K2234. A 50/50 mix with demineralised water suits most Australian and New Zealand conditions, providing balanced corrosion protection and temperature control. Stick with one chemistry—don’t mix brands or colours unless confirmed compatible.

How often should the coolant be changed?
For conventional green coolant common to the era, plan on about every 2 years or around 40,000 km. If a long-life formulation is used, follow the product and service manual guidance. Shorten the interval for heavy towing, off‑road work, or hot-climate use.

How can air be bled after a coolant change?
Refill slowly, set the heater to full hot, and run the engine at fast idle until the thermostat opens and the upper hose is hot. Top up as the level drops, cap it once stable, then recheck when cold. On diesels or models with rear heaters, take extra time to purge air from the longer circuits.