1996 Chevrolet S10 Pickup Owner's Manual - Page 250

How to Check Lubricant If the differential is cold, add enough lubricantto raise the level to 1/2 inch (12 mm) below the filler plug hole. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See "Recommended Fluids and Lubricants'' inthe Index. Engine Coolant The cooling system in your vehicle is filled with new DEX-COOL R'l (orange-colored, silicate-free) engine coolant. This coolant is designed to remain in your vehicle for 5 years or 100,000 miles ( 166 000 km), whichever occurs first. If the level is below the bottom of the filler hole, plug you'll need to add some lubricant. The following explains your cooling system and how to add coolant when it low. If you have a problem is with engine overheating, see "Engine Overheating" in the Index. If the differential is at operating temperature (warm), add enough lubricant to raise the level to the bottom of the filler plug hole. 6-24