2001-2006 Montero Gen3 3.0 qt Hypoid gear oil API classification GL-4 SAE 75W-85 or 75W-90. 1992-2000 Montero Gen2/2.5 2.6 qt Hypoid gear oil API classification GL-4 SAE 75W-85 or 75W-90. 1983-1991 Montero Gen1 2.3 qt Hypoid gear oil API classification GL-4 SAE 75W-85 or 80W.
