Page 302 of 366
Engine Oil with Filter Capacity
ApplicationCapacities
English Metric
7.2L** 30.0 quarts 28.4 liters*
8.1** 6.5 quarts 6.1 liters
7.8L** 23.8 quarts 22.5 liters
6.6L** 14.6 quarts 13.8 liters
*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.
Fuel Tank Capacity
ApplicationCapacities
English Metric
C4/C5 Models
Standard*
Optional
Optional
Optional40 gallons
40 gallons
60 gallons
80 gallons151.4 liters
151.4 liters
227.1 liters
302.8 liters
5-96
Page 303 of 366
Fuel Tank Capacity (cont’d)
ApplicationCapacities
English Metric
C6/C7/C8 Models
Standard
Optional
Optional
Optional†
Optional**
Optional&50 gallons
35 gallons
50 gallons
70 gallons
75 gallons
100 gallons189.2 liters
132.4 liters
189.2 liters
264.8 liters
283.8 liters
378.5 liters
*One 25-gallon (94.6 L) tank and one 15-gallon (56.8 L) tank
†Two 35-gallon (132.4 L) tanks
**One 25-gallon (94.6 L) tank and one 50-gallon (189.2 L) tank
&Two 50-gallon (189.2 L) tanks
5-97
Page 354 of 366

Compact Disc Messages..................................3-56
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-35
Heater, Engine............................................2-23
Low Warning Light.......................................3-36
Surge Tank Pressure Cap.............................5-35
Cooling System..............................................5-38
Cooling System Capacity.................................5-94
Cruise Control................................................3-10
Current and Past Model Order Forms.................. 7-8
Customer Assistance Information
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-3
Customer Assistance Offices........................... 7-3
Customer Satisfaction Procedure..................... 7-2
Reporting Safety Defects to General Motors...... 7-7
Reporting Safety Defects to the Canadian
Government.............................................. 7-7
Reporting Safety Defects to the United
States Government.................................... 7-6
Roadside Assistance Program......................... 7-4
Service Publications Ordering Information......... 7-7
D
Daytime Running Lamps..................................3-14
Daytime Running Lamps Indicator Light.............3-41
Defensive Driving............................................. 4-2Defogging and Defrosting.................................3-20
Defroster Check..............................................6-27
Diesel Engine
Exhaust Brake............................................2-25
Fuel............................................................ 5-8
Starting......................................................2-14
Starting Your DURAMAX™...........................2-19
Diesel Engine Warm-Up...................................2-16
Differential Lock Control, Inter-Axle....................4-10
Differential Lock Control, Rear Axle...................4-10
Differential Lock Indicator Light.........................3-40
Doing Your Own Service Work........................... 5-4
Dome Lamps.................................................3-15
Door
Locks.......................................................... 2-6
Power Door Locks......................................... 2-7
Door Latches Check........................................6-27
Double-Clutching.............................................2-30
Driver
Position, Safety Belt.....................................1-13
Driving
At Night.....................................................4-17
City...........................................................4-21
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-22
Hill and Mountain Roads..............................4-23
In Rain and on Wet Roads...........................4-18
Winter........................................................4-25
4