Use standard hypoid-type gear oil GL-4, SAE 90W when refilling the steering gear.
FLUID LEVEL CHECK
See Figure 1
Each year or 15,000 miles (24,000 km) you should check the steering gear housing lubricating oil. The filler plug is on top of the housing and requires a 14mm wrench for removal. The level should be 3 / 4 -1 inch (18-28mm) from the top on 2WD models and 9/16-11/16 inch (14-17mm) from the top on 4WD models.