GMC T-Series 1999 Owner's Manual page 320

Part C: Recommended Fluids
and Lubricants
NOTE: 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 For
Engine) 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
Diesel Engine) Oil recommendations.
Engine Coolant 50/50 mixture of clean, drinkable
(GM Gasoline water and use only GM
Engine) Goodwrench
Havoline
Coolant. See "Engine Coolant" in
the Index.
7-58
R
Operation &
R R
-
DEX COOL or
R R
-
DEX COOL
USAGE FLUID/LUBRICANT
Engine Coolant See the Caterpillar
(Caterpillar Maintenance Manual for Engine
Diesel Engine) Coolant recommendations.
Hydraulic Brake Delco Supreme 11
System (GM Part No. 12377967 or
equivalent DOT
Windshield GM Optikleen
Washer Solvent Solvent (GM Part No. 1051515)
or equivalent.
Clutch Bearing Clutch Bearing Lubricant (GM
Lubricant Part No. 12345777 or equivalent)
or NLGI #3 consistency.
-
Exhaust Brake High
Ball Joint Cap Part No. 1051344 or equivalent) or
Lubricant NLGI #3 consistency.
Spring Parking DEXRON
Brake Hydraulic Transmission Fluid.
Pump
R
Operation &
R
Brake Fluid
-
3 Brake Fluid).
R
Washer
Temperature Grease (GM
R
-
III Automatic
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