1997 Chevrolet S10 Pickup Owner's Manual - Page 261

Front Axle When to Check and Change Lubricant Referto the Maitltenance Schedule -todetermine haw often to check the lubricant and when to change it. See "Scheduled Maintenance S-ervic-es" in the Index. If the differential is at aperating temperature (warm), add enough lubricant to ,raise the level to the bottom of the filler plug hole, If the differe.ntia1 is. cold, add enough lubricant to raisethe level to 1/2 inch ( 12 mm)below the filler plug hole. What to Use Refer to the Maintenance Schedule to determirie what kind of lubricant to use. See "Recommended Fluids and Lubricants" in the Index. HOW Check Lubricant to Engine C,oolant The cooling system in your vehicle is filled with DEX-COOL@ engine coolant. This coolant is designed to remain in your vehicle for:5 year$ or 150,000miles (240 000 km), whicheveroccurs first, if you add only DEX-COOL@ extended life coolant. The fdIowing explains your .coaling system and how to add coolant when it i s - 1 0 If~ have a problem with ~ YQU engine overheating, see "Engine Overheating'' in the Index. If the 1ev.el is below -thebottom of the filler plug hole, youfll need to add some lubricant. 6-24