Parts for your 1989 Mitsubishi Pajero-Oil filter

1989 Mitsubishi Pajero oil filter – what it does and how to look after it

Yes, the 1989 Mitsubishi Pajero definitely uses an engine oil filter. Technical sources including the Mitsubishi Pajero Factory Service Manual (1988–1991), the Haynes Pajero/Montero/Shogun manual for 1983–1996, and AU/NZ parts catalogues from major filter makers all specify a full‑flow, spin‑on oil filter across common 1989 Pajero engines such as the 2.6 petrol (4G54), 2.5 diesel/turbo‑diesel (4D56/4D56T) and 3.0 V6 (6G72). So the oil filter is absolutely relevant to servicing this model.

The oil filter’s job is to catch wear metals, soot, dust and sludge so the engine keeps circulating clean oil and holds good pressure. Inside the canister there’s a fine media, a bypass valve to protect the engine if the media clogs, and (on most good filters) an anti‑drainback valve to help stop dry starts. That anti‑drainback feature is particularly handy on older diesels and V6s where the filter can sit on its side.

For a 1989 Pajero that sees Aussie or Kiwi conditions—dust, towing, short trips or beach runs—changing the filter with every oil change is smart maintenance. Aim for every 5,000–10,000 kilometres or 6–12 months, leaning shorter for turbo‑diesel, off‑road or heavy‑duty use. Use a quality filter that meets OEM spec and the correct oil grade for the engine