2003 Chevrolet Cab & Chassis Silverado Oil Type & Capacity
The 2003 Chevrolet Cab & Chassis Silverado oil type depends on the engine: the 2D Pickup Extra Cab, 6.0 U, 4WD, Automatic takes 5W-30 (6.0 quarts with filter); the 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic takes 5W-30 (6.0 quarts with filter); the 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard takes 5W-30 (6.0 quarts with filter); the 2D Pickup Extra Cab, 6.0 U, RWD, Automatic takes 5W-30 (6.0 quarts with filter); the 2D Pickup Extra Cab, 6.0 U, RWD, Standard takes 5W-30 (6.0 quarts with filter); the 2D Pickup Extra Cab, 6.6 1, 4WD, Automatic takes 15W-40 (10.0 quarts with filter); the 2D Pickup Extra Cab, 6.6 1, 4WD, Standard takes 15W-40 (10.0 quarts with filter); the 2D Pickup Extra Cab, 6.6 1, RWD, Automatic takes 15W-40 (10.0 quarts with filter); the 2D Pickup Extra Cab, 6.6 1, RWD, Standard takes 15W-40 (10.0 quarts with filter); the 2D Pickup Extra Cab, 8.1 G, 4WD, Automatic takes 5W-30 (6.5 quarts with filter); the 2D Pickup Extra Cab, 8.1 G, 4WD, Standard takes 5W-30 (6.5 quarts with filter); the 2D Pickup Extra Cab, 8.1 G, RWD, Automatic takes 5W-30 (6.5 quarts with filter); the 2D Pickup Extra Cab, 8.1 G, RWD, Standard takes 5W-30 (6.5 quarts with filter); the 2D Pickup, 6.0 U, 4WD, Automatic takes 5W-30 (6.0 quarts with filter); the 2D Pickup, 6.0 U, 4WD, Part Time, Automatic takes 5W-30 (6.0 quarts with filter); the 2D Pickup, 6.0 U, 4WD, Part Time, Standard takes 5W-30 (6.0 quarts with filter); the 2D Pickup, 6.0 U, RWD, Automatic takes 5W-30 (6.0 quarts with filter); the 2D Pickup, 6.0 U, RWD, Standard takes 5W-30 (6.0 quarts with filter); the 2D Pickup, 6.6 1, 4WD, Automatic takes 15W-40 (10.0 quarts with filter); the 2D Pickup, 6.6 1, 4WD, Standard takes 15W-40 (10.0 quarts with filter); the 2D Pickup, 6.6 1, RWD, Automatic takes 15W-40 (10.0 quarts with filter); the 2D Pickup, 6.6 1, RWD, Standard takes 15W-40 (10.0 quarts with filter); the 2D Pickup, 8.1 G, 4WD, Automatic takes 5W-30 (6.5 quarts with filter); the 2D Pickup, 8.1 G, 4WD, Standard takes 5W-30 (6.5 quarts with filter); the 2D Pickup, 8.1 G, RWD, Automatic takes 5W-30 (6.5 quarts with filter); the 2D Pickup, 8.1 G, RWD, Standard takes 5W-30 (6.5 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 2D Pickup Extra Cab, 6.0 U, 4WD, Automatic: 5W-30, 6.0 quarts with filter
- 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic: 5W-30, 6.0 quarts with filter
- 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard: 5W-30, 6.0 quarts with filter
- 2D Pickup Extra Cab, 6.0 U, RWD, Automatic: 5W-30, 6.0 quarts with filter
- 2D Pickup Extra Cab, 6.0 U, RWD, Standard: 5W-30, 6.0 quarts with filter
- 2D Pickup Extra Cab, 6.6 1, 4WD, Automatic: 15W-40, 10.0 quarts with filter
- 2D Pickup Extra Cab, 6.6 1, 4WD, Standard: 15W-40, 10.0 quarts with filter
- 2D Pickup Extra Cab, 6.6 1, RWD, Automatic: 15W-40, 10.0 quarts with filter
- 2D Pickup Extra Cab, 6.6 1, RWD, Standard: 15W-40, 10.0 quarts with filter
- 2D Pickup Extra Cab, 8.1 G, 4WD, Automatic: 5W-30, 6.5 quarts with filter
- 2D Pickup Extra Cab, 8.1 G, 4WD, Standard: 5W-30, 6.5 quarts with filter
- 2D Pickup Extra Cab, 8.1 G, RWD, Automatic: 5W-30, 6.5 quarts with filter
- 2D Pickup Extra Cab, 8.1 G, RWD, Standard: 5W-30, 6.5 quarts with filter
- 2D Pickup, 6.0 U, 4WD, Automatic: 5W-30, 6.0 quarts with filter
- 2D Pickup, 6.0 U, 4WD, Part Time, Automatic: 5W-30, 6.0 quarts with filter
- 2D Pickup, 6.0 U, 4WD, Part Time, Standard: 5W-30, 6.0 quarts with filter
- 2D Pickup, 6.0 U, RWD, Automatic: 5W-30, 6.0 quarts with filter
- 2D Pickup, 6.0 U, RWD, Standard: 5W-30, 6.0 quarts with filter
- 2D Pickup, 6.6 1, 4WD, Automatic: 15W-40, 10.0 quarts with filter
- 2D Pickup, 6.6 1, 4WD, Standard: 15W-40, 10.0 quarts with filter
- 2D Pickup, 6.6 1, RWD, Automatic: 15W-40, 10.0 quarts with filter
- 2D Pickup, 6.6 1, RWD, Standard: 15W-40, 10.0 quarts with filter
- 2D Pickup, 8.1 G, 4WD, Automatic: 5W-30, 6.5 quarts with filter
- 2D Pickup, 8.1 G, 4WD, Standard: 5W-30, 6.5 quarts with filter
- 2D Pickup, 8.1 G, RWD, Automatic: 5W-30, 6.5 quarts with filter
- 2D Pickup, 8.1 G, RWD, Standard: 5W-30, 6.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 2D Pickup Extra Cab, 6.0 U, 4WD, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup Extra Cab, 6.0 U, RWD, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup Extra Cab, 6.0 U, RWD, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup Extra Cab, 6.6 1, 4WD, Automatic — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup Extra Cab, 6.6 1, 4WD, Standard — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup Extra Cab, 6.6 1, RWD, Automatic — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup Extra Cab, 6.6 1, RWD, Standard — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup Extra Cab, 8.1 G, 4WD, Automatic — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup Extra Cab, 8.1 G, 4WD, Standard — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup Extra Cab, 8.1 G, RWD, Automatic — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup Extra Cab, 8.1 G, RWD, Standard — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup, 6.0 U, 4WD, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup, 6.0 U, 4WD, Part Time, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup, 6.0 U, 4WD, Part Time, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup, 6.0 U, RWD, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup, 6.0 U, RWD, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2D Pickup, 6.6 1, 4WD, Automatic — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup, 6.6 1, 4WD, Standard — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup, 6.6 1, RWD, Automatic — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup, 6.6 1, RWD, Standard — 6.6L Eng | API - SAE 15W-40 | 10.00 QTS. | — | Use SAE 10W-30 if temperatures stay above 0Deg.F (-18Deg.C) before your next oil change. When it is very cold, Below 0Deg.F (-18Deg.C), you should use SAE 5W-30 to improve cold starting and prevent engine damage. DO NOT use other viscosity oils such as SAE 10W-40 or SAE 20W-50. |
| 2D Pickup, 8.1 G, 4WD, Automatic — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup, 8.1 G, 4WD, Standard — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup, 8.1 G, RWD, Automatic — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
| 2D Pickup, 8.1 G, RWD, Standard — 8.1L Eng | API - SAE 5W-30 | 6.50 QTS. | — | — |
Buy the right oil
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More specs & repair guides for your Cab & Chassis Silverado
2003 Chevrolet Cab & Chassis Silverado factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
13.0 quarts (12.3 L) — 50/50 mixture of DEX-COOL and clean, drinkable water
Frequently asked questions
What type of oil does a 2003 Chevrolet Cab & Chassis Silverado take?
It depends on the engine: 2D Pickup Extra Cab, 6.0 U, 4WD, Automatic uses 5W-30; 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic uses 5W-30; 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard uses 5W-30; 2D Pickup Extra Cab, 6.0 U, RWD, Automatic uses 5W-30; 2D Pickup Extra Cab, 6.0 U, RWD, Standard uses 5W-30; 2D Pickup Extra Cab, 6.6 1, 4WD, Automatic uses 15W-40; 2D Pickup Extra Cab, 6.6 1, 4WD, Standard uses 15W-40; 2D Pickup Extra Cab, 6.6 1, RWD, Automatic uses 15W-40; 2D Pickup Extra Cab, 6.6 1, RWD, Standard uses 15W-40; 2D Pickup Extra Cab, 8.1 G, 4WD, Automatic uses 5W-30; 2D Pickup Extra Cab, 8.1 G, 4WD, Standard uses 5W-30; 2D Pickup Extra Cab, 8.1 G, RWD, Automatic uses 5W-30; 2D Pickup Extra Cab, 8.1 G, RWD, Standard uses 5W-30; 2D Pickup, 6.0 U, 4WD, Automatic uses 5W-30; 2D Pickup, 6.0 U, 4WD, Part Time, Automatic uses 5W-30; 2D Pickup, 6.0 U, 4WD, Part Time, Standard uses 5W-30; 2D Pickup, 6.0 U, RWD, Automatic uses 5W-30; 2D Pickup, 6.0 U, RWD, Standard uses 5W-30; 2D Pickup, 6.6 1, 4WD, Automatic uses 15W-40; 2D Pickup, 6.6 1, 4WD, Standard uses 15W-40; 2D Pickup, 6.6 1, RWD, Automatic uses 15W-40; 2D Pickup, 6.6 1, RWD, Standard uses 15W-40; 2D Pickup, 8.1 G, 4WD, Automatic uses 5W-30; 2D Pickup, 8.1 G, 4WD, Standard uses 5W-30; 2D Pickup, 8.1 G, RWD, Automatic uses 5W-30; 2D Pickup, 8.1 G, RWD, Standard uses 5W-30.
How much oil does a 2003 Chevrolet Cab & Chassis Silverado take?
Capacity depends on the engine: 2D Pickup Extra Cab, 6.0 U, 4WD, Automatic holds 6.0 quarts with filter; 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic holds 6.0 quarts with filter; 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard holds 6.0 quarts with filter; 2D Pickup Extra Cab, 6.0 U, RWD, Automatic holds 6.0 quarts with filter; 2D Pickup Extra Cab, 6.0 U, RWD, Standard holds 6.0 quarts with filter; 2D Pickup Extra Cab, 6.6 1, 4WD, Automatic holds 10.0 quarts with filter; 2D Pickup Extra Cab, 6.6 1, 4WD, Standard holds 10.0 quarts with filter; 2D Pickup Extra Cab, 6.6 1, RWD, Automatic holds 10.0 quarts with filter; 2D Pickup Extra Cab, 6.6 1, RWD, Standard holds 10.0 quarts with filter; 2D Pickup Extra Cab, 8.1 G, 4WD, Automatic holds 6.5 quarts with filter; 2D Pickup Extra Cab, 8.1 G, 4WD, Standard holds 6.5 quarts with filter; 2D Pickup Extra Cab, 8.1 G, RWD, Automatic holds 6.5 quarts with filter; 2D Pickup Extra Cab, 8.1 G, RWD, Standard holds 6.5 quarts with filter; 2D Pickup, 6.0 U, 4WD, Automatic holds 6.0 quarts with filter; 2D Pickup, 6.0 U, 4WD, Part Time, Automatic holds 6.0 quarts with filter; 2D Pickup, 6.0 U, 4WD, Part Time, Standard holds 6.0 quarts with filter; 2D Pickup, 6.0 U, RWD, Automatic holds 6.0 quarts with filter; 2D Pickup, 6.0 U, RWD, Standard holds 6.0 quarts with filter; 2D Pickup, 6.6 1, 4WD, Automatic holds 10.0 quarts with filter; 2D Pickup, 6.6 1, 4WD, Standard holds 10.0 quarts with filter; 2D Pickup, 6.6 1, RWD, Automatic holds 10.0 quarts with filter; 2D Pickup, 6.6 1, RWD, Standard holds 10.0 quarts with filter; 2D Pickup, 8.1 G, 4WD, Automatic holds 6.5 quarts with filter; 2D Pickup, 8.1 G, 4WD, Standard holds 6.5 quarts with filter; 2D Pickup, 8.1 G, RWD, Automatic holds 6.5 quarts with filter; 2D Pickup, 8.1 G, RWD, Standard holds 6.5 quarts with filter.
Can I use synthetic oil in my 2003 Chevrolet Cab & Chassis Silverado?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2003 Chevrolet Cab & Chassis Silverado. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.