2014 GMC Sierra 2500HD Oil Capacity & Filter

The 2014 GMC Sierra 2500HD requires 6.0 quarts (5.7 liters) of 5W-30 motor oil if equipped with the 6.0L LY6 Vortec V8 engine, or 10.0 quarts (9.5 liters) of 15W-40 or 5W-40 motor oil if equipped with the 6.6L LML Duramax Diesel V8 engine.

Quick Answer

6.0L LY6 Vortec V8 (Gasoline)

• Oil Capacity: 6.0 quarts (5.7 liters)
• Recommended Oil Weight: 5W-30
• Oil Spec: Dexos1 Gen2 (or newer Dexos1 Gen3) / API SN PLUS (or newer API SP)
• Oil Filter (OEM): ACDelco PF48E
• Oil Filter (Fram): PH10575
• Oil Filter (Wix): 57060
• Oil Filter (Mobil 1): M1-113

6.6L LML Duramax Diesel V8 (Diesel)

• Oil Capacity: 10.0 quarts (9.5 liters)
• Recommended Oil Weight: 15W-40 (for most climates) or 5W-40 (for colder climates and enhanced protection)
• Oil Spec: API CJ-4 (or newer API CK-4)
• Oil Filter (OEM): ACDelco UPF61R
• Oil Filter (Fram): CH10706
• Oil Filter (Wix): 57202
• Oil Filter (Mobil 1): M1C-151A

Capacity by Engine Option

Oil Change Interval

For the 2014 GMC Sierra 2500HD:

• Normal Duty: General Motors recommends following the Oil Life Monitoring (OLM) system, which can extend intervals up to 7,500 - 10,000 miles or 12 months, whichever comes first. Always check your dashboard display for the OLM percentage.
• Severe Duty: If you frequently tow heavy loads, drive in extreme temperatures, idle for extended periods, or operate in dusty conditions, consider changing your oil and filter every 3,000-5,000 miles or 6 months. The OLM system will typically reduce the interval under these conditions.

Drain Plug Torque

• 6.0L LY6 Vortec V8 (Gasoline): The drain plug torque specification is 18 lb-ft (25 Nm). Always use a new crush washer with each oil change.
• 6.6L LML Duramax Diesel V8 (Diesel): The drain plug torque specification is 37 lb-ft (50 Nm). Always use a new crush washer with each oil change.

Failure to use the correct torque can lead to stripped threads or leaks. Always replace the drain plug gasket/crush washer to ensure a proper seal.

How to Change the Oil

1. Gather your tools: new oil, new oil filter, drain pan, wrench or socket for the drain plug, oil filter wrench, and a new crush washer.
2. Warm up the engine slightly to help the oil flow, then turn it off.
3. Locate the drain plug on the oil pan (underneath the vehicle). Place a sufficiently sized drain pan below it.
4. Carefully loosen and remove the drain plug, allowing the old oil to drain completely. Be cautious, as the oil may be hot.
5. Once the oil has drained, replace the old crush washer with a new one on the drain plug and reinstall the plug. Torque to the specified setting.
6. Locate the oil filter. Place the drain pan underneath it to catch any residual oil. Remove the old oil filter.
7. Apply a thin layer of new oil to the gasket of the new oil filter. Install the new filter, tightening it hand-tight plus an additional 3/4 to 1 full turn (or according to filter manufacturer instructions). Avoid over-tightening.
8. Refill the engine with the recommended type and quantity of new oil through the oil filler cap on top of the engine.
9. Start the engine and let it run for a few minutes to circulate the new oil. Check for any leaks around the drain plug and oil filter.
10. Turn off the engine, wait a few minutes for the oil to settle, then check the oil level with the dipstick and top off if necessary.
11. Properly dispose of the used oil and filter at an approved recycling center.

Common Issues / Tips for this Generation (2011-2019 GMT900/K2XX Platform)

• Oil Cooler Lines (Duramax): On some Duramax models, particularly earlier in this generation, watch for leaks from the oil cooler lines. This isn