Parts for your 1998 Mitsubishi Pajero-Brake fluid

1998 Mitsubishi Pajero Brake Fluid

Brake fluid is absolutely relevant to the 1998 Mitsubishi Pajero. The model uses a hydraulic braking system (with ABS on many variants) that relies on glycol-based brake fluid. This is documented in the Mitsubishi Factory Service Manual for the era, the Pajero owner’s manual (which specifies DOT 3 or DOT 4), and widely referenced by workshop guides such as Haynes and professional lubricant selectors used in Australia and New Zealand. The reservoir cap itself on these vehicles also indicates the required DOT rating.

On a 1998 Pajero, brake fluid transmits pedal pressure through the master cylinder to the calipers and wheel cylinders, converting foot effort into strong, controlled stopping power. Because the system is sealed but not immune to moisture ingress, the fluid is hygroscopic, over time it absorbs water, which lowers its boiling point and can cause a spongy pedal, longer stopping distances, or brake fade when towing or descending long hills. Fresh, correct-spec fluid keeps the hydraulics protected from corrosion and ensures consistent braking performance across Aussie and Kiwi climates.

Mitsubishi specifies DOT 3 or DOT 4 brake fluid for this generation Pajero, DOT 4 is commonly chosen today for its higher boiling points, but always match what’s on the reservoir cap or service data. Don’t use silicone-based DOT 5, and avoid mixing brands or types unless you’re doing a full flush. A good rule of thumb is to replace the fluid every 2 years or around 40,000 km, sooner if the vehicle tows, sees off-road water crossings, or works hard in the heat.

Under the bonnet, keep the reservoir filled to the MAX line with clean fluid from a sealed container and wipe away any dust before opening the cap. Brake fluid is aggressive on paint, so cover guard edges and clean any spilt fluid immediately. When flushing, bleeding should start from the wheel furthest from the master cylinder and progress inward. If ABS is fitted, follow the workshop procedure—some systems benefit from scan-tool actuation to move fluid through the modulator. If the pedal still feels soft after a careful bleed, a professional inspection is wise.

• Signs it’s due: dark or cloudy fluid, a soft or creeping pedal, longer stopping distances, or service age/kilometres exceeded.
• Tips: use only sealed bottles, keep caps tight, and dispose of old fluid responsibly.

Popular questions about 1998 Mitsubishi Pajero brake fluid

What brake fluid type should be used?
For a 1998 Pajero, Mitsubishi specifies DOT 3 or DOT 4 glycol-based brake fluid. Many owners choose DOT 4 for its higher boiling point, but the key is to match what’s on the reservoir cap or in the service manual. Avoid DOT 5 (silicone) as it isn’t compatible with the system.

How often should the brake fluid be changed?
Every 2 years or about 40,000 km is a solid interval for Australian and New Zealand conditions. Heavy towing, frequent off-road use, or hot, hilly driving can justify shorter intervals to keep pedal feel and braking performance crisp.

Can the fluid be bled at home, especially with ABS?
Yes, with care. The basic bleed order applies and clean technique is essential. On ABS-equipped Pajeros, some procedures call for activating the ABS modulator to fully purge old fluid. If the pedal remains soft after a conventional bleed, it’s best to use a pressure bleeder or seek a workshop with the right scan tools.