Capacities And Specifications; Cooling System Capacity; Crankcase Capacity - GMC C series 2002 Owner's Manual

Capacities and Specifications

Engine Identification and Data
Engine RPO LG5
Engine Type 7.2L L6
Fuel System HEUI
Firing Order - -
1 5 3

Cooling System Capacity

Model
7.2L with manual transmission
7.2L with automatic transmission
8.1L with manual transmission
8.1L with automatic transmission with
sloped hood . . . . . . . . . . . . . . . .
8.1L with automatic transmission with
specialty hood
Above capacities (volumes) are approximate.
6-74
L18
8.1L V8
SPFI
- - - - - - - - - -
6 2 4 1 8 7 2 6 5 4 3
Quarts (Liters)
. . . . . . . . 32.0 (30.0)
. . . . . . 30.0 (28.4)
. . . . . . . . 26.5 (25.0)
24.5 (23.0)
. . . . . . . . . . . . . . 26.5 (25.0)

Crankcase Capacity

Capacities (volumes) shown are for normal refill. Add
oil as indicated when the oil filter element is changed.
Capacities given are approximate
the operating range. Do not operate with fluid level
below the ADD line.
Engine
Capacity
7.2L** 21 (19.0)*
8.1L** 6.5 (6.1)
*Additional oil is required with auxiliary oil filter
systems. Make sure to add enough extra oil to fill the
auxiliary oil filter system. For vehicles equipped with
-
the LUBERFINER 750 C, add 14 quarts (13.25 L).
** Check fill level on the oil indicator after initial fill to
make sure it is actually full. Oil level may vary
depending on vehicle option content.
Extending the recommended oil change interval requires
the use of an infrared oil analysis program which shows
the condition of the oil and its additives. For more
information, consult your GM Truck dealer, who is an
R
authorized Caterpillar engine dealer.
--
keep level within
--
Quarts (Liters)