1999 GMC Sierra Oil Type & Capacity
The 1999 GMC Sierra oil type depends on the engine: the 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Automatic takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Standard takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Automatic takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Standard takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 W, RWD, Automatic takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 W, RWD, Standard takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Standard takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Standard takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 V, RWD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 V, RWD, Standard takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 T, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 T, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 T, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 3D Pickup Extra Cab, 4.8 V, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 3D Pickup Extra Cab, 5.3 T, RWD takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 5.3 T takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Standard takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Standard takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 6.0 U, RWD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500, 2D Pickup, 6.0 U, RWD, Standard takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 5.3 T takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Standard takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Standard takes 5W-30 (6.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Automatic: 5W-30, 4.5 quarts with filter
- 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Standard: 5W-30, 4.5 quarts with filter
- 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Automatic: 5W-30, 4.5 quarts with filter
- 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Standard: 5W-30, 4.5 quarts with filter
- 1500, 2D Pickup, 4.3 W, RWD, Automatic: 5W-30, 4.5 quarts with filter
- 1500, 2D Pickup, 4.3 W, RWD, Standard: 5W-30, 4.5 quarts with filter
- 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Automatic: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Standard: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Automatic: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Standard: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 4.8 V, RWD, Automatic: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 4.8 V, RWD, Standard: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 5.3 T, 4WD, Automatic: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 5.3 T, 4WD, Part Time: 5W-30, 6.0 quarts with filter
- 1500, 2D Pickup, 5.3 T, RWD: 5W-30, 6.0 quarts with filter
- 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Automatic: 5W-30, 6.0 quarts with filter
- 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Part Time: 5W-30, 6.0 quarts with filter
- 1500, 3D Pickup Extra Cab, 4.8 V, RWD: 5W-30, 6.0 quarts with filter
- 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Automatic: 5W-30, 6.0 quarts with filter
- 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Part Time: 5W-30, 6.0 quarts with filter
- 1500, 3D Pickup Extra Cab, 5.3 T, RWD: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 5.3 T: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Automatic: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Standard: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Automatic: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Standard: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 6.0 U, RWD, Automatic: 5W-30, 6.0 quarts with filter
- 2500, 2D Pickup, 6.0 U, RWD, Standard: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 5.3 T: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Automatic: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Standard: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Automatic: 5W-30, 6.0 quarts with filter
- 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Standard: 5W-30, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Automatic — 4.3L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Standard — 4.3L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Automatic — 4.3L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Standard — 4.3L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| 1500, 2D Pickup, 4.3 W, RWD, Automatic — 4.3L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| 1500, 2D Pickup, 4.3 W, RWD, Standard — 4.3L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Automatic — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Standard — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Automatic — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Standard — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 4.8 V, RWD, Automatic — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 4.8 V, RWD, Standard — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 5.3 T, 4WD, Automatic — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 5.3 T, 4WD, Part Time — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 2D Pickup, 5.3 T, RWD — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Automatic — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Part Time — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 3D Pickup Extra Cab, 4.8 V, RWD — 4.8L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Automatic — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Part Time — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 1500, 3D Pickup Extra Cab, 5.3 T, RWD — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 5.3 T — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 6.0 U, RWD, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 2D Pickup, 6.0 U, RWD, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 5.3 T — 5.3L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Automatic — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
| 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Standard — 6.0L Eng | API - SAE 5W-30 | 6.00 QTS. | — | — |
Complete Oil Change Bundle for 1999 GMC Sierra
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More factory specs & repair guides for your Sierra
🛞 1999 GMC Sierra Tire Size & Pressure →🌧️ 1999 GMC Sierra Wiper Blade Sizes →💡 1999 GMC Sierra Light Bulb Sizes →📖 1999 GMC Sierra Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network 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 1999 GMC Sierra take?
It depends on the engine: 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Automatic uses 5W-30; 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Standard uses 5W-30; 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Automatic uses 5W-30; 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Standard uses 5W-30; 1500, 2D Pickup, 4.3 W, RWD, Automatic uses 5W-30; 1500, 2D Pickup, 4.3 W, RWD, Standard uses 5W-30; 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Automatic uses 5W-30; 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Standard uses 5W-30; 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Automatic uses 5W-30; 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Standard uses 5W-30; 1500, 2D Pickup, 4.8 V, RWD, Automatic uses 5W-30; 1500, 2D Pickup, 4.8 V, RWD, Standard uses 5W-30; 1500, 2D Pickup, 5.3 T, 4WD, Automatic uses 5W-30; 1500, 2D Pickup, 5.3 T, 4WD, Part Time uses 5W-30; 1500, 2D Pickup, 5.3 T, RWD uses 5W-30; 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Automatic uses 5W-30; 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Part Time uses 5W-30; 1500, 3D Pickup Extra Cab, 4.8 V, RWD uses 5W-30; 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Automatic uses 5W-30; 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Part Time uses 5W-30; 1500, 3D Pickup Extra Cab, 5.3 T, RWD uses 5W-30; 2500, 2D Pickup, 5.3 T uses 5W-30; 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Automatic uses 5W-30; 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Standard uses 5W-30; 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Automatic uses 5W-30; 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Standard uses 5W-30; 2500, 2D Pickup, 6.0 U, RWD, Automatic uses 5W-30; 2500, 2D Pickup, 6.0 U, RWD, Standard uses 5W-30; 2500, 3D Pickup Extra Cab, 5.3 T uses 5W-30; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Automatic uses 5W-30; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Standard uses 5W-30; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic uses 5W-30; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard uses 5W-30; 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Automatic uses 5W-30; 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Standard uses 5W-30.
What is the oil capacity of a 1999 GMC Sierra?
Oil capacity depends on the engine: 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Automatic holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 W, 4WD, Automatic, Standard holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Automatic holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 W, 4WD, Part Time, Standard holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 W, RWD, Automatic holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 W, RWD, Standard holds 4.5 quarts with filter; 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Standard holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Standard holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 V, RWD, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 V, RWD, Standard holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 T, 4WD, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 T, 4WD, Part Time holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 T, RWD holds 6.0 quarts with filter; 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Automatic holds 6.0 quarts with filter; 1500, 3D Pickup Extra Cab, 4.8 V, 4WD, Part Time holds 6.0 quarts with filter; 1500, 3D Pickup Extra Cab, 4.8 V, RWD holds 6.0 quarts with filter; 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Automatic holds 6.0 quarts with filter; 1500, 3D Pickup Extra Cab, 5.3 T, 4WD, Part Time holds 6.0 quarts with filter; 1500, 3D Pickup Extra Cab, 5.3 T, RWD holds 6.0 quarts with filter; 2500, 2D Pickup, 5.3 T holds 6.0 quarts with filter; 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Automatic holds 6.0 quarts with filter; 2500, 2D Pickup, 6.0 U, 4WD, Automatic, Standard holds 6.0 quarts with filter; 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Automatic holds 6.0 quarts with filter; 2500, 2D Pickup, 6.0 U, 4WD, Part Time, Standard holds 6.0 quarts with filter; 2500, 2D Pickup, 6.0 U, RWD, Automatic holds 6.0 quarts with filter; 2500, 2D Pickup, 6.0 U, RWD, Standard holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 5.3 T holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Automatic holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Standard holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Automatic holds 6.0 quarts with filter; 2500, 3D Pickup Extra Cab, 6.0 U, RWD, Standard holds 6.0 quarts with filter.
How often should I change the oil in my 1999 GMC Sierra?
Most 1999 GMC Sierra owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — GMC recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1999 GMC Sierra?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1999 GMC Sierra. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.