Parts for your 1996 Mitsubishi Pajero-Coolant

1996 Mitsubishi Pajero Coolant — What It Does and How to Look After It

Coolant is absolutely relevant and used on the 1996 Mitsubishi Pajero. Every factory engine offered that year (including the 3.0L/3.5L petrol V6s and the 2.8L 4M40 turbo‑diesel) runs a liquid-cooled system with an ethylene glycol–based coolant circulating through the radiator and engine passages. This is detailed in the Mitsubishi Pajero/Montero Workshop Manual (1991–1999, Group 14A: Cooling System) and echoed by the 1996 Pajero Owner’s Handbook and common repair guides such as the Haynes Pajero manual for the era.

On this Pajero, coolant does three big jobs: it pulls heat out of the engine to keep temps steady, raises the boiling point to cope with Aussie and Kiwi summer towing and off‑road climbs, and lays down corrosion inhibitors to protect alloy components, the water pump, and the radiator. Running just water isn’t on—tap water invites scale and corrosion, while glycol coolant with the right inhibitors keeps things clean and stable.

For servicing, a quality ethylene glycol coolant suitable for aluminium engines is recommended—genuine Mitsubishi green LLC or an equivalent that meets JIS K2234/ASTM D3306 specs. A 50/50 mix with demineralised water is the sweet spot for boil protection and corrosion control. Most technicians aim for replacement every 2 years or around 40,000 km, which aligns with period service schedules in Mitsubishi literature. If the colour’s gone murky, there’s rust sediment, or temps creep up under load, bring it forward.

When changing coolant on a ‘96 Pajero, they should warm the engine, drain the radiator and block where possible, flush with clean demineralised water, then refill slowly. Always set the heater to HOT when bleeding, idle the engine with the cap off until the thermostat opens and bubbles stop, then fit the cap and top the overflow to the COLD “Full” mark. After the first couple of drives, recheck the level.

Good workshop habits make a difference:

• Never mix coolant chemistries, if unsure, fully flush first.
• Inspect hoses, clamps, the radiator cap, and the water pump weep hole during every service.
• Use a refractometer or test strips to check protection and inhibitor health between changes.
• Dispose of old coolant responsibly—it’s toxic to pets and wildlife.

Looked after like this, the Pajero’s cooling system will stay happy on the highway, the farm track, and the sandy bits in between.

What coolant type suits a 1996 Mitsubishi Pajero?

An ethylene glycol–based coolant for aluminium engines, mixed 50/50 with demineralised water, is the go. Genuine Mitsubishi green Long Life Coolant (LLC) or an equivalent meeting JIS K2234/ASTM D3306 specs is recommended. Avoid mixing different coolant chemistries—flush completely if changing brands or types.

How often should the coolant be changed?

Typically every 2 years or about 40,000 km. If the coolant looks dirty, has an oily sheen, shows rust flecks, or the vehicle runs hotter than normal—especially when towing or on long climbs—service it sooner and inspect the radiator cap, thermostat, and flow through the core.

How do they bleed the system after a refill?

Set the heater to HOT, fill the radiator slowly, start the engine and let it idle with the cap off until the thermostat opens and bubbles stop. Squeeze the upper hose to help purge air. Fit the cap, top up the overflow to the COLD line, then recheck levels after the first few drives.