2015 GMC Yukon Oil Capacity & Filter Guide

The 2015 GMC Yukon takes exactly 8.0 quarts (7.6 liters) of full synthetic 0W-20 engine oil when replacing the oil and filter. Whether you are driving the standard SLE/SLT with the 5.3L V8 or the top-tier Denali with the massive 6.2L V8, General Motors standardized the oil pan size and viscosity requirements for both engines in this generation.

As an ASE-certified master technician, I always recommend sticking strictly to the manufacturer's oil specifications to keep the Active Fuel Management (AFM) system functioning properly and to prevent premature lifter wear, which is a known vulnerability in these EcoTec3 engines.

Quick answer

• Oil Capacity: 8.0 quarts (7.6 Liters) with filter replacement.
• Recommended Weight/Viscosity: SAE 0W-20 Full Synthetic.
• Oil Specification: GM dexos1™ Gen 3 (this supersedes the older dexos1 Gen 1/Gen 2 specs printed in your original 2015 owner's manual) / API SP.
• Oil Filter (OEM): ACDelco PF63E (or standard PF63).
• Oil Filter (Aftermarket Cross-References):
  • Fram: XG10575 (Ultra Synthetic) or PH10575
  • Wix: WL10255 or 57045
  • Mobil 1: M1-212A

Capacity by engine option

For the 2015 model year, the GMC Yukon (and the longer Yukon XL) came with two V8 engine choices. Fortunately for DIYers and technicians alike, the fluid requirements are identical for both.

Oil change interval

Your 2015 Yukon is equipped with the GM Oil Life System (OLS), which calculates oil degradation based on engine speed, temperatures, and driving habits. However, relying purely on the dashboard percentage isn't always the best strategy for long-term engine health.

• Normal Duty: Follow the Oil Life Monitor, but do not exceed 7,500 miles or 12 months, whichever comes first.
• Severe Duty: If you frequently tow heavy trailers, drive in dusty conditions, idle for long periods, or take mostly short trips in freezing weather, change your oil every 5,000 miles. Frequent changes are the best defense against lifter failure in these engines.

Drain plug torque

• Torque Specification: 18 ft-lbs (25 Nm).
• Drain Plug Size: 15mm wrench or socket.
• Washer Note: The OEM drain plug for the 2015 Yukon utilizes an integrated rubber O-ring seal rather than a traditional crush washer. Inspect this rubber seal during every oil change. If it is flattened, cracked, or missing, replace the entire drain plug to prevent leaks.

How to change the oil

1. Warm up the engine: Let the vehicle run for a few minutes to bring the oil to operating temperature, which helps it drain faster and suspend contaminants.
2. Lift the vehicle: Safely raise and support the front of the Yukon using ramps or jack stands.
3. Drain the oil: Locate the 15mm drain plug at the bottom rear of the oil pan. Remove the plug and let the oil drain completely into a catch pan. Reinstall and torque the plug to 18 ft-lbs.
4. Replace the filter: Locate the oil filter near the oil pan. Use a filter wrench to remove it. Lubricate the new filter's rubber gasket with a dab of fresh oil, spin it on by hand until it makes contact, and then tighten it another 3/4 to 1 full turn. Do not overtighten.
5. Refill the engine: Remove the oil filler cap on the top of the engine and pour in exactly 8.0 quarts of 0W-20 dexos1-approved synthetic oil.
6. Check levels and reset OLM: Start the engine and check underneath for leaks. Turn off the engine, wait five minutes, and check the dipstick to verify the level. Finally, navigate your driver information center to the "Oil Life" screen, press and hold the checkmark (or trip reset stem) to reset the system to 100%.

Common issues / tips

• AFM/DFM Lifter Failure: The EcoTec3 V8s (5.3L and 6.2L) are notorious for Active Fuel Management lifter collapses. Dirty or degraded oil is the primary catalyst for this failure. Sticking to a strict 5,000-mile severe duty schedule with high-quality dexos1 full synthetic oil is your best preventative measure.
• Oil Consumption: Some 2015 Yukons may consume up to a quart of oil between changes as they age. Check your dipstick every few fuel fill-ups to ensure you don't run low, as operating with less than 8 quarts puts immense stress on the valvetrain.
• Oil Pressure Sensor Screen: If your dash shows abnormally low oil pressure, it might not be a failing pump. There is a tiny filter screen located under the oil pressure sensor at the back of the engine block that is prone to clogging with sludge. Regular oil changes prevent this screen from blocking up.

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