Paj ATF and filter change every:
-12 months or 25,000 km

IF you use your ride under the ff:
-heavy traffic where outside temp regularly reaches 32 degrees C or higher
-in hilly or mountainous terrain
-frequent trailer pulling
-frequent off road
THEN change every22,500km

NOTE:
-ATF should be hot when changed
-Most models with drain plugs do not have filter-determine 1st your model to check if you need filter renewal
-

Use Dexron II or Mercon ATF

Capacity (approx.)
'86-earlier models 3.7 ltrs.
'87-later models 5.1 ltrs.


Pajero Haynes Repair Manual section 39 & 1-2