2022 GMC Sierra 2500HD Oil Capacity & Filter Reference

The 2022 GMC Sierra 2500HD requires 8.0 quarts (7.6 liters) of oil for the 6.6L V8 Gas engine and 10.0 quarts (9.5 liters) of oil for the 6.6L Duramax V8 Turbo-Diesel engine, both including the oil filter. Whether you are hauling heavy equipment or cruising down the highway, using the correct oil capacity and specification is critical to ensuring your heavy-duty truck runs reliably for years to come.

As an ASE-certified master technician, I have compiled this comprehensive oil capacity and filter reference guide for the 2022 GMC Sierra 2500HD to help you get the job done right.

Quick Answer

Here are the essential oil specifications for both engines available in the 2022 GMC Sierra 2500HD:

6.6L V8 Gas (L8T)

• Capacity: 8.0 quarts (7.6 L) with filter
• Recommended Weight: 5W-30
• Oil Specification: dexos1 Gen 3 (or API SP)
• OEM Oil Filter: ACDelco PF63
• Aftermarket Filters: Fram PH10060, Wix 57045, Mobil 1 M1-113A

6.6L Duramax V8 Turbo-Diesel (L5P)

• Capacity: 10.0 quarts (9.5 L) with filter
• Recommended Weight: 15W-40 (or 5W-40 for extreme cold weather)
• Oil Specification: API CK-4 or CJ-4 (dexosD for some GM diesels, but CK-4 is the heavy-duty standard)
• OEM Oil Filter: ACDelco PF26
• Aftermarket Filters: Fram PH9100, Wix 57202, Mobil 1 M1-303A

Capacity by Engine Option

Oil Change Interval

The 2022 GMC Sierra 2500HD is equipped with GM's Intelligent Oil-Life System (IOLS), which calculates oil degradation based on driving conditions. However, here are the baseline mileage recommendations:

• Normal Duty: Follow the Oil-Life Monitor. For the gas engine, this usually triggers around 7,500 miles. For the Duramax, it can range from 7,500 to 10,000 miles. Never exceed 10,000 miles or 12 months between changes.
• Severe Duty (Towing, Idling, Dusty Conditions): Change the oil every 5,000 miles. Heavy towing generates extreme heat, degrading the oil's additive packages much faster.

Drain Plug Torque

• Drain Plug Torque (Gas & Diesel): 18 lb-ft (25 Nm).
• Crush Washer Note: The factory drain plug incorporates a rubber sealing gasket. Inspect this gasket at every oil change. If it is flattened, cracked, or missing, replace the drain plug or the seal to prevent leaks.

How to Change the Oil

1. Prepare the Truck: Park on a level surface, engage the parking brake, and let the engine cool slightly (warm oil drains faster, but hot oil can burn you).
2. Drain the Oil: Remove the 15mm drain plug located on the bottom of the oil pan. Allow the oil to drain completely into a catch pan large enough to hold at least 10-12 quarts.
3. Replace the Filter: Locate the oil filter. Depending on your skid plate configuration, you may need to remove an access panel. Use a filter wrench to remove the old filter.
4. Install the New Filter: Lubricate the rubber gasket on the new oil filter with fresh oil. Spin it on by hand until the gasket makes contact, then tighten an additional 3/4 to 1 full turn.
5. Reinstall Drain Plug: Thread the drain plug back in by hand to prevent cross-threading, then torque to 18 lb-ft (25 Nm).
6. Refill and Verify: Pour in the recommended amount of oil (8 qts for gas, 10 qts for diesel). Start the engine and let it idle for 30 seconds to fill the filter. Turn off the engine, wait a few minutes, and check the dipstick to ensure the level is at the "FULL" mark.
7. Reset the Oil Life Monitor: Navigate to the "Oil Life" screen on your dashboard's driver information center, press and hold the thumbwheel/check button until it resets to 100%.

Common Issues / Tips

• Diesel Filter Accessibility: On the Duramax, the oil filter is easily accessible from underneath, but oil can drip onto the frame rail or front differential when removed. Use a flexible funnel or a piece of cardboard to guide the old oil directly into your catch pan.
• DEF System Maintenance: If you drive the Duramax, remember that the diesel exhaust fluid (DEF) tank will also need periodic refilling. An oil change is a great time to top it off.
• Fuel Filters: The Duramax fuel filters should typically be replaced every 15,000 to 22,500 miles depending on fuel quality and the IOLS. Keep an eye on your Fuel Filter Life monitor.
• Grease Fittings: Unlike many modern light-duty trucks, HD trucks still have greaseable front-end components. Make sure to grease the steering linkages (tie rod ends, pitman arm, idler arm) during every oil change.

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