GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Service and Appearance Care 🢒 Capacities and Specifications 🢒 Capacities and Specifications
Table 1: Air Conditioning Refrigerant Capacities
Table 2: Engine Oil with Filter Capacity
Table 3: Fuel Tank Capacity
Table 4: Rear Axle Lubricant Capacity

Engine

RPO

7.2L L6 HEUI Fuel System

LG5

8.1L V8 SPFI Fuel System

L18

7.8L L6 Common Rail Fuel System

LG4

6.6L V8 Common Rail Fuel System

LB7/LLY

Cooling System Capacity

The following approximate capacities are given in English and metric conversions. Please refer to Part C: Recommended Fluids and Lubricants for more information.

Application

Capacities

English

Metric

C4/C5 Models

  • 8.1L with manual transmission

30.1 quarts

28.5 liters

  • 8.1L with automatic transmission

29.8 quarts

28.2 liters

  • 6.6L with manual transmission

27.6 quarts

26.1 liters

  • 6.6L with automatic transmission

27.3 quarts

25.8 liters

C6/C7/C8 Models

  • 8.1L with manual transmission

33.3 quarts

31.5 liters

  • 8.1L with manual transmission, air conditioning and increased cooling

34.9 quarts

33.0 liters

  • 8.1L with automatic transmission

32.5 quarts

30.8 liters

  • 7.8L 200-230 hp engine with manual transmission

31.6 quarts

29.9 liters

  • 7.8L 200-230 hp engine with manual transmission, air conditioning and increased cooling

35.3 quarts

33.4 liters

C6/C7/C8 Models

  • 7.8L 200-215 hp engine with automatic transmission

33.7 quarts

31.9 liters

  • 7.2L 175-230 hp engine with manual transmission

29.3 quarts

27.7 liters

  • 7.2L 175-230 hp engine with manual transmission, air conditioning and increased cooling

33.0 quarts

31.2 liters

  • 7.2L 175-210 hp engine with automatic transmission

31.4 quarts

29.7 liters

  • 7.8L 250-275 hp engine with manual transmission

34.9 quarts

33.0 liters

  • 7.8L 250-275 hp engine with manual transmission, air conditioning and increased cooling

35.4 quarts

33.5 liters

  • 7.8L 230-275 hp engine with automatic transmission

33.3 quarts

31.5 liters

  • 7.2L 250-300 hp engine with manual transmission

32.8 quarts

31.0 liters

  • 7.2L 250-300 hp engine with manual transmission, air conditioning and increased cooling

33.3 quarts

31.5 liters

  • 7.2L 250-300 hp engine with automatic transmission

31.2 quarts

29.5 liters

Air Conditioning Refrigerant R134a

2.1 lbs.

1.0 kg

It is recommended that service work on your air conditioning system be performed by a qualified technician.

Air Conditioning Refrigerant Capacities

R134a

2.1 lbs. (1.0 kg)

Use Refrigerant Oil, R143a Systems

Engine Oil with Filter Capacity

Application

Capacities

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

Application

Capacities

English

Metric

40 gallons

40 gallons

60 gallons

80 gallons

151.4 liters

151.4 liters

227.1 liters

302.8 liters

50 gallons

35 gallons

50 gallons

70 gallons

75 gallons

100 gallons

189.2 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

Transmission Fluid Capacity

For manual transmissions, the correct fluid level is to the bottom of the fluid fill plug opening. The fluid capacity will vary, due to the angle of the transmission, with the vehicle. For automatic transmissions, see the Allison Automatic Transmission Operator's Manual for fluid check and maintenance information.

Application

Capacities

English

Metric

Manual Transmission

  • ZF S6-650

12.7 pints

6.0 liters

  • RT6609

12.5 pints

5.9 liters

  • RT8709B

25.1 pints

11.8 liters

  • FS4205A, FS4205B, FS4205C

11.1 pints

5.3 liters

  • FS5205A, FS5205C

11.6 pints

5.5 liters

  • FS5406

18.4 pints

8.7 liters

  • FS6305A, FS6305B

18.4 pints

8.7 liters

  • FS6406

18.4 pints

8.7 liters

  • FS8406

18.5 pints

8.8 liters

  • RT8908LL

29.1 pints

13.8 liters

Automatic Transmission

  • MD 3060 P

52.0 pints

24.6 liters*

MD 3560 P

52.0 pints

24.6 liters*

1000 Series

35.0 pints

13.5 liters*

2000 Series

35.0 pints

13.5 liters*

2200 Series

35.0 pints

13.5 liters*

2400 Series

35.0 pints

13.5 liters*

*Add two pints (one liter) when changing spin-on or remote filter.

Rear Axle Lubricant Capacity

Application

Capacities

English

Metric

Single Speed Axle

  • 80

10.0 pints

4.7 liters

  • S135

26.0 pints

12.3 liters

  • 19060S

31.0 pints

14.7 liters

  • 21060D

31.0 pints

14.7 liters

  • 21060S

31.0 pints

14.7 liters

  • S150

28.0 pints

13.0 liters

  • 23090S

40.0 pints

19.0 liters

  • 23105S

56.0 pints

26.5 liters

  • 26105S

54.0 pints

25.5 liters

Two-Speed Axle

  • 19060T

38.0 pints

18.0 liters

  • 21060T

38.0 pints

18.0 liters

  • 23082T

40.0 pints

19.0 liters

  • 26080T

44.0 pints

20.8 liters

Tandem Axles

  • DS344 (front)

32.0 pints

15.1 liters

  • RS344 (rear)

31.0 pints

14.7 liters

  • DSH44 (front)

32.0 pints

15.1 liters

  • RSH44 (rear)

31.0 pints

14.7 liters

  • DS404, DS404P (front)

32.0 pints

15.1 liters

  • RS404 (rear)

31.0 pints

14.7 liters