1994 GMC Jimmy Owner's Manual - Page 257

How to Check Lubricant If the level is below the bottom of the filler plug hole, you'll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole. What to Use Refer to the Maintenance Schedule to determine what kind lubricant to of use. See "Recommended Fluids and Lubricants" in the Index. Four- Wheel Drive Most lubricantchecks in this sectionalso apply to four-wheel-drive vehicles. However, they have additional systems that need lubrication. two Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often check the to lubricant. See "Periodic Maintenance Inspections" in the Index. 6-21