GMC C series 2002 Owner's Manual page 311

Part C: Recommended Fluids
and Lubricants
Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE FLUID/LUBRICANT
Engine Oil Engine oil with the American
(Gasoline Petroleum Institute Certified
Engine) for Gasoline Engines starburst
symbol of the proper viscosity.
To determine the preferred
viscosity for your vehicle's engine,
see "Engine Oil" in the Index.
Engine Oil See the Caterpillar
(Caterpillar Maintenance Manual for engine oil
Diesel Engine) recommendations.
7-30
USAGE
Engine Coolant
(Gasoline
Engine &
DURAMAX
Diesel)
Engine Coolant
(Caterpillar
Diesel Engine)
Hydraulic
Brake System
R
Windshield
Operation &
Washer Solvent
FLUID/LUBRICANT
50/50 mixture of clean,
drinkable water and use only
R
GM Goodwrench
R
t
or Havoline DEX
Coolant. See "Engine Coolant"
in the Index.
R
See the Caterpillar
Maintenance Manual for engine
coolant recommendations.
R
Delco Supreme 11
(GM Part No. 12377967 or
-
equivalent DOT 3 brake fluid).
R
GM Optikleen Washer Solvent
(GM Part No. 1051515)
or equivalent.
R
-
DEX COOL
R
-
COOL
Operation &
Brake Fluid