Page 253 of 388
Checking Engine Oil
Pull out the dipstick and clean it with a paper towel or
cloth, then push
it back in all the way. Remove it again,
keeping the tip down, and check the level.
When to Add Engine Oil
If the oil is at or below the ADD mark, then you’ll need
to add at least one quart of oil. But you must use the
right kind. This part explains what kind of oil to use. For
crankcase capacity, see “Capacities and Specifications”
in the Index.
I NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the upper
mark that shows the proper operating range, your engine could be damaged.
The engine oil filler cap is located between the coolant
recovery tank and the air cleaner.
6-13
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Page 308 of 388
Cooling System Capacity (Approximate)
ENGINE VIN QTY Without Rear Heater
“VORTEC”4300 W 11 Quarts (10.4 L)
“VORTEC”5000 M 17 Quarts (16 L)
“VORTEC”5700 R 17 Quarts (16 L)
“VORTEC”7400 J 23 Quarts (21.8 L)
QTY With Rear Heater
14 Quarts (13.2 L)
20 Quarts (18.9 L)
20 Quarts (18.9 L)
26 Quarts (24.6 L)
After refill, the level MUST be checked as outlined under “Engine Cooling System” in Section 5.
Crankcase Capacity (Approximate)
ENGINE VIN Quantity With Filter
“VORTEC”4300 W 4.5 Quarts (4.3 L)
“VORTEC”5000 M 5 Quarts (4.8 L)
“VORTEC”5700 R 5 Quarts (4.8 L)
“VORTEC”7400 J 6.6 Quarts (6.24 L)
After refill, the level MUST be rechecked. Add enough engine oil so that the fluid is within the proper operating
range. See “Engine Oil” in the Index.
*Add one additional quart for
RPO 5Z1 and RPO KL5 Models.
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Page 309 of 388
Fuel Tank Capacity (Approximate)
TYPE QUANTITY
Standard Tank 3 1 Gallons (117.33 L)
Standard Tank 33 Gallons (124.90 L)
Optional Tank* 55 Gallons (208.18 L)
** 159”, 177” Wheelbase Vehicles Only.
MODEL TYPE
Passenger and Cargo
Cab and Chassis
Cab and Chassis
Normal Maintenance Replacement Parts
Engine “VORTEC”4300 “VORTEC”5000
VIN W M
Oil Filter PF52 PF1218
Air Cleaner Filter
* A917C A917C
PCV Valve CV789C cv774c
Spark Plugs 41-932 4 1-932
Fuel Filter GF48 1 GF48 1
Radiator Cap
RC36 RC36
“VORTEC”5700
R
PF1218
A917C
cv774c 4 1-932
GF48 1
RC36
“VORTEC”7400
J
PF1218 A917C
cv774c 4 1-932
GF48
1
RC36
* Replace with AC Air Filter, Part No. A917C and for severe dusty conditions, use AC Air Filter, Part No. 1236C.
6-69
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Page 378 of 388

Engine ....................................... 6-10
Coolant ..................................... 6-21
Coolant Level Check
.......................... 7-38
Cooling System
.............................. 5-14
Exhaust
...................... 2.29.2.30.2.33. 4.26
FuseBlock
.................................. 6-65
Identification
........................... 6.60. 6.67
OilLevelCheck
.............................. 7-38
Overheating
................................. 5-11
Running While Parked
......................... 2-30
Starting Your
................................ 2- 18
Engine Coolant Heater ........................... 2-20
Engineoil
.................................... 6-12
Adding
..................................... 6-13
Additives
................................... 6-15
Checking
................................... 6-13
Pressure Gage ................................ 2-60
Used ....................................... 6-16
Whentochange
.............................. 6-15
Exhaust, Engine
................. 2-29,2-30.2-33, 4-26
Exterior Lamps
................................. 2-40
Coolant Temperature
Gage
..................... 2-57
Engine Oil (Continued)
Fabric Cleaning
............................... 6-52
Filling
a Portable Fuel Container .................... 6-7
Filling Your Tank
................................ 6-5
Filter. Air ..................................... 6-16
Finish Care
.................................... 6-55
Finish Damage
................................. 6-57 First Gear. Automatic Transmission
................ 2-23
Flashers. Hazard Warning
......................... 5-2
Flat Tire. Changing
............................. 5-22
Fluids and Lubricants
............................ 7-44
Foreign Countries. Fuel
........................... 6-5
French Language Manual 11
Front Parkingmurn Signal Lamp Bulb Replacement .... 6-35
Front Storage Area
.............................. 2-48
FrontTowing
.................................. 5-10
Fuel
.......................................... 6-3
Canada
...................................... 6-3
Filling
a Portable Container ...................... 6-7
Gage
....................................... 2-63
In Foreign Countries ........................... 6-5
Tank Capacity
............................... 6-69
Fuses and Circuit Breakers
....................... 6-61
.. ...........................
Filling Your Tank .............................. 6-5
Gages Engine Coolant Temperature
.................... 2-57
Engine Oil Pressure
........................... 2-60
Fuel
....................................... 2-63
Speedometer
................................. 2-52
Voltmeter
................................... 2-55
Gear Positions. Automatic Transmission
............. 2-21
Gross Axle Weight Rating
........................ 4-27
Gross Vehicle Weight Rating
...................... 4-27
Guide en Franpis
11
GAWR ....................................... 4-27
.. .................................
GVWR ....................................... 4-27
9-4
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