HomeLibraryGMC Trucks2003C4/5/6/7/8 Series (Top Kick)

GMC Trucks C4/5/6/7/8 Series (Top Kick) 2003

Fluids Capacities and Specifications

Engine Oil Capacities
6.6 L14.6 quarts(13.8 L)
7.2 L30.0 quarts(28.4 L)
7.8 L14.5 quarts(13.7 L)
8.1 L6.5 quarts(6.1 L)
Automatic Transmission Fluid Capacities
Automatic Transmission
MD 3060 P52.0 pints(24.6 L)
MD 3560 P52.0 pints(24.6 L)
2000 Series35.0 pints(13.5 L)
2400 Series35.0 pints(13.5 L)
Manual Transmission Fluid Capacities
Manual Transmission
ZF S6-65012.7 pints(6.0 L)
RT660912.5 pints(5.9 L)
RT8709B25.1 pints(11.8 L)
FS4205A, FS4205B, FS4205C11.1 pints(5.3 L)
FS5205A, FS5205C11.6 pints(5.5 L)
FS540618.4 pints(8.7 L)
FS6305A, FS6305B18.4 pints(8.7 L)
FS640618.4 pints(8.7 L)
FS840618.5 pints(8.8 L)
RT8908 LL29.1 pints(13.8 L)
Cooling System Capacity
Cooling System
C4/C5 Models
8.1 L
With Manual Transmission30.1 quarts(28.5 L)
With Automatic Transmission29.8 quarts(28.2 L)
6.6 L
With Manual Transmission27.6 quarts(26.1 L)
With Automatic Transmission27.3 quarts(25.8 L)
C6/C7/C8 Models
8.1 L
With Manual Transmission33.3 quarts(31.5 L)
With Manual Transmission, air conditioning and increased cooling34.9 quarts(33.0 L)
With Automatic Transmission32.5 quarts(30.8 L)
7.8 L
200-230hp engine with manual trans31.6 quarts(29.9 L)
200-230hp engine with manual trans, air conditioning, and increased cooling35.3 quarts(33.4 L)
200-215hp engine with automatic trans33.7 quarts(31.9 L)
250-275hp engine with manual trans34.9 quarts(33.0 L)
250-275hp engine with manual trans, air conditioning, and increased cooling35.4 quarts(33.5 L)
230-275hp engine with automatic trans33.3 quarts(31.5 L)
7.2 L
175-230hp engine with manual trans29.3 quarts(27.7 L)
175-230hp engine with manual trans, air conditioning and increased cooling33.0 quarts(31.2 L)
175-210hp engine with automatic trans31.4 quarts(29.7 L)
250-300hp engine with manual trans32.8 quarts(31.0 L)
250-300hp engine with manual trans, air conditioning, and increase cooling33.3 quarts(31.5 L)
250-300hp engine with automatic trans31.2 quarts(29.5 L)
Fuel Tank Capacities
Fuel Tank
C4/C5 Models
Standard40 gallons(151.4 L)
Optional40 gallons(151.4 L)
Optional60 gallons(227.1 L)
Optional80 gallons(302.8 L)
C6/C7/C8 Models
Standard53 gallons(200.6 L)
Optional38 gallons(143.8 L)
Optional50 gallons(189.2 L)
Optional76 gallons(287.7 L)
Optional80 gallons(302.8 L)
Optional100 gallons(378.5 L)
Optional106 gallons(401.3 L)
Air-conditioning Capacities
Air Conditioning Refrigerants Capacity2.1 pounds(1.0 kg)

Rear Axle Oil Capacities
Rear Axle
Single Speed
8010.0 pints(4.7 L)
S13526.0 pints(12.3 L)
19060S31.0 pints(14.7 L)
21060D31.0 pints(14.7 L)
21060S31.0 pints(14.7 L)
S15028.0 pints(13.0 L)
23090S40.0 pints(19.0 L)
23105S56.0 pints(26.5 L)
26105S54.0 pints(25.5 L)
19060T38.0 pints(18.0 L)
21060T38.0 pints(18.0 L)
23082T40.0 pints(19.0 L)
26080T44.0 pints(20.8 L)
Tandem Axles
DS344 (front)32.0 pints(15.1 L)
RS344 (rear)31.0 pints(14.7 L)
DSH44 (front)32.0 pints(15.1 L)
RSH44 (rear)31.0 pints(14.7 L)
DS404, DS404P (front)32.0 pints(15.1 L)
RS404 (rear)31.0 pints(14.7 L)

Many people saved thousands of dollars by doing some technical service procedures for their GMC Trucks C4/5/6/7/8 Series (Top Kick) 2003 by themselves. The easiest type of technical maintenance is changing engine oil, axles oil, manual and automatic transmission oil. Changing break fluid in GMC Trucks C4/5/6/7/8 Series (Top Kick) 2003 is also is a simple task. If you want to change engine oil, for instance, by yourself and save a couple of bucks you need to know how much this fluid engine oil is needed for GMC Trucks C4/5/6/7/8 Series (Top Kick) 2003. If you fill engine or axles of your car with oil to the brim it may damage your vehicle engine or axles and void manufacturer warranty. Good news! We have this information and we give it to you for free.

Note: all capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in user manual for your GMC Trucks C4/5/6/7/8 Series (Top Kick) 2003. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Note: not all air conditioning refrigerants are the same. If the air conditioning system in your vehicle needs refrigerant, be sure the proper refrigerant is used. If you're not sure, ask your dealer.

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