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Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name,
part number, or specification can be obtained from
your dealer.
Usage Fluid/Lubricant
Engine Oil
The engine requires a special
engine oil meeting GM Standard
GM4718M. Oils meeting this
standard can be identified as
synthetic, and should also be
identified with the American
Petroleum Institute (API) Certified
for Gasoline Engines starburst
symbol. However, not all synthetic
API oils with the starburst symbol
will meet this GM standard. You
should look for and use only oil that
meets GM Standard GM4718M. GM
Goodwrench
®
oil meets all the
requirements for your vehicle. For
the proper viscosity, see Engine Oil
on page 380.
Engine Cooling
System
50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. See Engine Coolant on
page 389.
Usage Fluid/Lubricant
Intercooler
System
(4.4L V8
Supercharged
engine)
50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant.
Hydraulic Brake
System
Delco
®
Supreme 11 Brake Fluid or
equivalent DOT-3 brake fluid.
Windshield
Washer
GM Optikleen
®
Washer Solvent.
Parking Brake
Cable Guides
Chassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
System
GM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
Transmission
DEXRON
®
-VI Automatic
Transmission Fluid.
Key Lock
Cylinders
Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Supercharger
Supercharger Oil
(GM Part No. U.S. 12345982,
in Canada 10953513). See
Supercharger Oil on page 385
516