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Part D: 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
(Gasoline Engine)
Engine oil with the American
Petroleum Institute Certified 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.
USAGE FLUID/LUBRICANT
Engine Oil
(Diesel Engine)
Engine oil with the letters CH-4
or CG
-4 is best for your vehicle.
The CH
-4 or CG-4 designation
may appear either alone, or in
combination with other API
designations, such as API
CH
-4/SJ, CG-4/SH or
CH
-4/CG-4/SJ. These letters show
American Petroleum Institute
(API) levels of quality. To
determine the preferred viscosity
for your vehicle’s diesel engine,
see “Engine Oil” in the Index.
Engine Coolant 50/50 mixture of clean, drinkable
water and use only GM
Goodwrench
DEX-COOL or
Havoline
DEX-COOL
Coolant. See “Engine Coolant” in
the Index.