2023 Chevrolet Silverado 1500 3.0L Duramax Diesel Specs
4th gen (T1) · Updated Oct 2026
- Horsepower
- 305 hp
- 495 lb-ft
- Max towing
- 13,300 lb
- properly equipped
- Oil capacity
- 7.0 qt
- with filter
- Oil type
- SAE 0W-20 (dexosD)
- Tire size
- 255/70R17
- MPG combined
- 26 mpg
Specs #specs
The 2023 Chevrolet Silverado 1500 3.0L Duramax Diesel makes 305 hp at 3,750 rpm and 495 lb-ft of torque at 2,750 rpm.
The 2023 Chevrolet Silverado 1500 3.0L Duramax Diesel can tow up to 13,300 lb when properly equipped, and its maximum payload is 1,970 lb.
| Horsepower | 305 hp @ 3,750 rpm |
|---|---|
| Torque | 495 lb-ft @ 2,750 rpm |
| Transmission | 10-speed automatic |
| Drivetrain | 2WD or 4WD |
| Max towing | 13,300 lb |
| Max payload | 1,970 lb |
Engine #engine
| Engine | 3.0L Duramax turbo-diesel I6 (LZ0) |
|---|---|
| Engine code | LZ0 |
| Displacement | 3.0 L |
| Cylinders | I6 |
| Aspiration | Turbocharged |
| Fuel | Diesel |
Oil capacity & fluids #oil-capacity
The 2023 Chevrolet Silverado 1500 3.0L Duramax Diesel takes 7.0 quarts of SAE 0W-20 (dexosD) oil with a filter change.
| Engine oil (with filter) | 7.0 qt |
|---|---|
| Oil type | SAE 0W-20 (dexosD) |
| Coolant | 19.4 qt |
| Diesel exhaust fluid | 5.4 gal |
| Transfer case (4WD) | 1.6 qt |
| Fuel tank | 24.0 gal (4WD standard and short box), 22.0 gal (2WD standard and short box), 28.3 gal (long box) |
Wheels & tires #tire-size
The 2023 Chevrolet Silverado 1500 3.0L Duramax Diesel comes with 255/70R17 tires.
| Tire size | 255/70R17 |
|---|---|
| Wheel size | 17 in (LT) |
| Lug nut torque | 140 lb-ft |
Fuel economy #mpg
| City | Highway | Combined | |
|---|---|---|---|
| 2WD | 24 | 29 | 26 |
| 4WD | 22 | 27 | 24 |
Maintenance schedule #maintenance
| Engine oil & filter (Oil Life System, at least) | 12 mo |
|---|---|
| Cabin air filter | 22,500 mi / 24 mo |
| Fuel filter | 30,000 mi / 24 mo |
| Transfer case fluid (4WD) | 100,000 mi |
| Engine coolant | 150,000 mi / 72 mo |
| Brake fluid | 60 mo |
| Oil pump belt | 200,000 mi / 180 mo |
3 recalls for the 2023 Chevrolet Silverado 1500 →
FAQ
How much oil does the 2023 Silverado 3.0L Duramax take?
The 3.0L Duramax takes 7.0 quarts of SAE 0W-20 including the oil filter.
Sources: 2023 Chevrolet Silverado 1500 Owner's Manual, 2023 Chevrolet and GMC Duramax Diesel 3.0L Owner Manual Supplement, 2023 Chevrolet Silverado 1500 brochure (horsepower, torque, towing, payload, trim tire sizes), EPA fueleconomy.gov, NHTSA recalls. Updated Oct 2026.