For the 2023 GMC Yukon equipped with the 3.0L 6-cylinder LM2 T Diesel Turbo engine, the required oil viscosity is 0W-20. The engine oil capacity is 7 quarts when performing a change with a new filter. AMSOIL recommends using AMSOIL 0W-20 100% Synthetic Diesel Oil (DP020QT-EA) paired with a WIX Oil Filter (WL10351-EA) for optimal protection.
What oil does a 2023 GMC Yukon 3.0L Diesel take?
The 2023 GMC Yukon with the 3.0L 6-cylinder LM2 T Diesel engine requires an oil viscosity of 0W-20 for all temperatures. The AMSOIL lookup oil grade is SEOA5. For vehicles originally using GM Dexos2, the lookup note states you may use a GM Dexos D licensed engine oil of the appropriate viscosity grade.
AMSOIL product recommendations
Based on the AMSOIL lookup data, the following products are recommended for your 2023 GMC Yukon 3.0L Diesel engine maintenance.
Engine Oil & Filter
| Product Name | Code |
|---|---|
| AMSOIL 0W-20 100% Synthetic Diesel Oil | DP020QT-EA |
| WIX Oil Filter | WL10351-EA |
Coolant & Antifreeze
| Product Name | Code |
|---|---|
| AMSOIL Passenger Car & Light Truck Antifreeze & Coolant | ANTPC1G-EA |
| AMSOIL Propylene Glycol Antifreeze and Engine Coolant | ANT1G-EA |
Automatic Transmission Fluid
| Product Name | Code |
|---|---|
| AMSOIL Signature Series ULV 100% Synthetic ATF | ULVPK-EA |
Transfer Case Lubricant
| Product Name | Code |
|---|---|
| AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF | ATLPK-EA |
| AMSOIL OE Fuel-Efficient 100% Synthetic ATF | OTLQT-EA |
Engine Oil Specifications
| Viscosity | Oil Grade (AMSOIL Lookup) |
|---|---|
| 0W-20 | SEOA5 |
Engine Oil Capacity
| Description | Capacity |
|---|---|
| With Filter Change | 7 quarts |
Note: After refill, always check the oil level.
Oil Drain Plug Torque
| Component | Torque Value |
|---|---|
| Oil Drain Plug | 18 ft/lbs |
Note: Replace the drain plug seal during service.
How much transmission fluid does it take?
Transmission capacity varies based on whether your vehicle is equipped with a cooler and which specific 10-speed model (10L80/MHS or 10L80/MQC) is installed. For both MHS and MQC variants, the total fill for a transmission only is 11.5 quarts, while the total fill with a cooler is 12 quarts. An initial fill of 8.1 quarts is also noted.
Automatic Transmission Capacities
| Configuration | Total Fill Capacity |
|---|---|
| 10-speed Trans Only (MHS/MQC) | 11.5 quarts |
| 10-speed With Cooler (MHS/MQC) | 12 quarts |
| Initial Fill | 8.1 quarts |
The AMSOIL lookup note references the WSS-M2C949-A specification, which was developed by Ford and GM; products meeting this are available under DEXRON ULV and MERCON ULV tradenames.
Transfer Case Maintenance
For transfer case models MP3015 or 25, the capacity is 3.2 pints. You should check the tag on the case for identification. When servicing the transfer case, apply high-performance thread sealant to the threads of both the drain and fill plugs before installation.
| Component | Torque Spec |
|---|---|
| Transfer Case Drain Plug | 15 ft/lbs |
| Transfer Case Fill Plug | 15 ft/lbs |
Diesel maintenance notes for this vehicle
- Oil Level: Always check the oil level after refilling.
- Drain Plug: Ensure you replace the drain plug seal to prevent leaks.
- Transfer Case: Use high-performance thread sealant on drain and fill plug threads.
- Coolant Mixing: If using AMSOIL Propylene Glycol Antifreeze, it is concentrated and requires mixing with distilled or high-quality water.
Common diesel oil-related concerns and how AMSOIL products may help
| Concern | Why it matters | AMSOIL product from this lookup | How it may help | Important limitation |
|---|---|---|---|---|
| Engine Wear | Diesel engines face high pressure and friction. | DP020QT-EA | Delivers up to 6X more wear protection than leading industry standards in specific tests. | Based on OM646LA cam wear test results. |
| Temperature Extremes | Cold starts or high heat can affect lubrication. | DP020QT-EA | Excels in hot and cold temperature extremes. | Not confirmed from source data for specific operating ranges. |
| Transmission Heat | Heavy towing generates significant heat. | ULVPK-EA | Withstands rigors of heavy towing and elevated temperatures. | Diagnosis or repair may be required for mechanical failures. |
Common maintenance concerns for this vehicle
Based on owner reports, several areas require attention:
- Electrical/Software: Some owners have reported issues with screen displays and body control modules.
- Suspension: There is a known recall regarding rear suspension outer control arm bolts that may not have been properly heat-treated.
- Braking Systems: Monitoring brake fluid warning lamps is important due to electronic brake control module software concerns.
Recall, TSB, and manufacturer communication notes
Official NHTSA research indicates the following recalls for the 2023 GMC Yukon:
Disclaimer: Always verify open recalls by your specific VIN through the GMC customer service or the NHTSA website.
About this vehicle
The 2023 GMC Yukon is a premium full-size SUV within General Motors’ large SUV lineup, often associated with high-end Denali trim levels. This specific model features the 3.0L 6-cylinder Duramax diesel engine (Engine Code [T] LM2 T Diesel Turbo).
The Duramax diesel engine family is designed to provide enhanced towing capabilities and improved fuel efficiency compared to traditional gasoline V8 engines, making it a preferred choice for heavy-duty hauling and long-distance travel. Because this vehicle utilizes a high-pressure diesel injection system and a turbocharger, maintenance schedules are critical. Owners should focus on high-quality diesel fuel filtration, regular oil changes using diesel-specific lubricants, and monitoring Diesel Exhaust Fluid (DEF) levels where applicable.
Given the complexity of modern diesel emissions systems, staying current with manufacturer-recommended service intervals is vital for long-term reliability. As noted in vehicle research, owners should verify specific performance outputs like horsepower and torque through official GM service manuals.
Common questions about this vehicle’s diesel oil and maintenance
What is the oil capacity for my 2023 Yukon 3.0L Diesel?
The capacity is 7 quarts when replacing the oil filter. Always check the level after refilling.
Which oil viscosity should I use?
The required viscosity is 0W-20 for all temperatures. AMSOIL recommends DP020QT-EA.
What is the torque spec for my oil drain plug?
The oil drain plug should be torqued to 18 ft/lbs. Remember to replace the seal.
Can I use Dexos D oil in my diesel Yukon?
Yes, the AMSOIL lookup note states that vehicles originally using GM Dexos2 may use a GM Dexos D licensed engine oil of the appropriate viscosity grade.
How often should I change my coolant?
AMSOIL offers protection for up to 150,000 miles or 5 years for their Passenger Car & Light Truck Antifreeze, but you should consult your owner’s manual for the specific interval.
How do I verify if my vehicle has an open recall?
You should contact a GMC dealer or use the NHTSA website to check for active recalls using your unique Vehicle Identification Number (VIN).
Verification Disclaimer: While this information is derived from AMSOIL and NHTSA data, always consult your official vehicle owner’s manual and a certified technician before performing maintenance.