GMC 2001 C3 Owner's Manual page 13

Service Station Guide
Engine Oil Dipstick
Tire Pressure
See Section 6
Cooling System
See Section 6
For
See Section 5
a More
Detailed Look at
What's Under the Hood
Spare Tire Pressure
See Section 6
See Section 6
Hood Release
See Section 6
Fuel
Oil Viscosity
Windshield
Use unleaded only.
Engine Oil
Washer Fluid
Battery
See Section 6
See Section 6
See Section 6 for octane ratings.
See Section 6