2024 GMC Sierra 2500HD Oil Capacity & Filter Guide

The 2024 GMC Sierra 2500HD takes 8.0 quarts (7.6 liters) of oil for the 6.6L Gas V8 engine, or 10.0 quarts (9.5 liters) for the 6.6L Duramax Turbo-Diesel V8 engine, both with a filter change. As a heavy-duty workhorse, maintaining the correct oil levels, specifications, and change intervals on your Sierra 2500HD is critical to ensuring long-term reliability and towing performance.

Quick answer

Here is the essential information you need for a standard oil change on the 2024 GMC Sierra 2500HD (specs vary by engine, see table below for diesel):

• Oil Capacity: 8.0 quarts (6.6L Gas) / 10.0 quarts (6.6L Duramax Diesel)
• Recommended Weight: 5W-30 (Gas) / 15W-40 or 5W-40 (Diesel)
• Oil Specification: dexos1 Gen 3 / API SP (Gas) | API CK-4 / dexosD (Diesel)
• OEM Oil Filter: AC Delco PF63 (Gas) / AC Delco PF226G or PF26 (Diesel)
• Popular Aftermarket Filters (Gas): Fram XG10575, Wix 57045, Mobil 1 M1-113A
• Popular Aftermarket Filters (Diesel): Fram PH9100, Wix 57202, Mobil 1 M1-303A

Capacity by engine option

The 2024 Sierra 2500HD is offered with two massive 6.6L powerplants. Make sure you are referencing the correct engine before purchasing your oil.

Note: For the Duramax diesel, 5W-40 full synthetic is highly recommended if you operate the vehicle in temperatures below 0°F (-18°C) to prevent cold-start wear.

Oil change interval

GM equips the 2024 Sierra 2500HD with an Intelligent Oil-Life System (OLS) that calculates oil deterioration based on driving conditions. However, here are the standard manual guidelines:

• Normal Duty: Follow the Oil Life Monitor, which generally prompts for an oil change between 7,500 and 10,000 miles, or every 12 months, whichever comes first.
• Severe Duty: If you frequently tow heavy loads, idle extensively, drive in dusty environments, or do mostly short trips, replace the oil and filter every 5,000 miles regardless of the OLS reading.

Drain plug torque

• Drain Plug Torque: 18 lb-ft (25 Nm) for both the gas and diesel engines.
• Crush Washer Note: The factory drain plug features a rubber gasket/seal. While it does not use a traditional crush washer, this rubber seal degrades over time. Inspect it closely; if it is flattened, cracked, or leaking, replace the entire drain plug.

How to change the oil

1. Prepare the truck: Park on a level surface, engage the parking brake, and allow the engine to cool slightly so the oil is warm but not scalding. (Because it is an HD truck, you likely won't need ramps to slide underneath).
2. Drain the oil: Locate the oil pan and remove the 15mm drain plug. Allow the oil to drain completely into an appropriately sized catch pan (ensure your pan can hold at least 3 gallons for the diesel!).
3. Replace the filter: Locate the oil filter. Use a filter wrench to loosen and remove it. Wipe the mounting surface clean. Pre-fill the new filter with a little fresh oil, lubricate the rubber O-ring with fresh oil, and install it hand-tight (usually 3/4 to 1 full turn after the gasket makes contact).
4. Reinstall the drain plug: Clean the drain plug, check the integrated seal, and torque it to 18 lb-ft.
5. Refill the engine: Remove the oil filler cap and pour in the specified amount of oil (8.0 qts for gas, 10.0 qts for diesel).
6. Verify and reset: Start the engine and let it run for a minute to build oil pressure. Check underneath for leaks. Turn off the engine, wait 5 minutes, and verify the fluid level on the dipstick. Finally, reset the Oil Life Monitor via the driver information center on your dashboard.

Common issues / tips

• Skid Plates: If your Sierra is equipped with the AT4 trim or off-road protection packages, you may need to remove an access panel to reach the oil filter without making a massive mess.
• Massive Diesel Oil Capacity: A common DIY mistake on the Duramax is using a standard 7-8 quart oil drain pan. When 10 quarts come rushing out of the L5P, it will quickly overflow a standard pan. Buy a heavy-duty 16-quart drain pan.
• Diesel Particulate Filter (DPF): For Duramax owners, using the correct API CK-4 low-ash oil is critical. Using the wrong oil specification can clog the DPF prematurely, leading to very expensive exhaust system repairs.

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