For the 2022 Chevrolet Suburban 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 (including filter replacement). AMSOIL recommends using AMSOIL 0W-20 100% Synthetic Diesel Oil (Code: DP020QT-EA) paired with a WIX Oil Filter (Code: WL10351-EA) for optimal protection.
What oil does a 2022 Chevrolet Suburban 3.0L Diesel take?
The 2022 Chevrolet Suburban with the 3.0L 6-cylinder LM2 T Diesel Turbo engine requires an oil viscosity of 0W-20 for all temperatures. The AMSOIL lookup identifies the SEOA5 oil grade for this application. Additionally, vehicles originally using GM Dexos2 may use a GM Dexos D licensed engine oil of the appropriate viscosity grade.
AMSOIL product recommendations
Based on the AMSOIL lookup for the 2022 Chevrolet Suburban 3.0L Diesel, the following products are recommended to maintain engine and component health.
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 |
Transmission & Transfer Case
| Product Name | Code |
|---|---|
| AMSOIL Signature Series ULV 100% Synthetic ATF | ULVPK-EA |
| AMSOIL Signature Series Fuel-Efficient ATF | ATLPK-EA |
| AMSOIL OE Fuel-Efficient 100% Synthetic ATF | OTLQT-EA |
| AMSOIL Signature Series Fuel-Efficient ATF (Transfer Case) | ATLPK-EA |
| AMSOIL OE Fuel-Efficient 100% Synthetic ATF (Transfer Case) | OTLQT-EA |
Engine Oil Specifications
| Specification | Detail |
|---|---|
| Oil Viscosity | 0W-20 (All TEMPS) |
| AMSOIL Lookup Oil Grade | SEOA5 |
Engine Oil Capacity & Torque
| Component | Specification |
|---|---|
| Oil Capacity (with filter) | 7 quarts |
| Oil Drain Plug Torque | 18 ft/lbs |
Note: After refilling, always check the oil level.
How much transmission fluid does it take?
Transmission capacity varies based on your specific configuration (10L80/MQC or 10L80/MHS) and whether the vehicle is equipped with a cooler. For most configurations, the total fill ranges from 11.5 to 12 quarts, while the initial fill is approximately 8.1 quarts.
Automatic Transmission Capacities
| Configuration | Capacity |
|---|---|
| 10-speed with O Cooler (MQC/MHS) | 11.5 quarts Total Fill |
| 10-speed with Cooler (MQC/MHS) | 12 quarts Total Fill |
| Initial Fill | 8.1 quarts |
The AMSOIL lookup note references the WSS-M2C949-A specification for this application, noting it was developed by Ford and GM; products meeting this are available under DEXRON ULV and MERCON ULV tradenames.
Transfer Case Lubricant Specifications
For transfer case models MP3015 or 25, the capacity is 3.2 pints. It is critical to check the identification tag on the case for confirmation.
| Component | Torque/Note |
|---|---|
| Drain Plug Torque | 15 ft/lbs |
| Fill Plug Torque | 15 ft/lbs |
Maintenance Tip: Apply high-performance thread sealant to the threads of both the drain and fill plugs before installing.
Diesel maintenance notes for this vehicle
- Fuel Quality: Diesel engines require strict adherence to fuel quality standards.
- Filter Management: Owners should prioritize regular intervals for fuel filter replacements and Diesel Exhaust Fluid (DEF) management.
- Coolant Maintenance: The cooling system requires specific diesel coolant specifications to protect metals, gaskets, and hoses.
Common maintenance concerns for this vehicle
Based on owner reports and technical data, owners of the 2022 Suburban should monitor the following:
- Transmission Performance: Some owners have reported issues regarding transmission control valve wear, which can lead to service engine lights or harsh shifting.
- Engine Reliability: There are documented owner complaints regarding unexpected engine shutdowns.
- Electrical/Lighting: Issues with Daytime Running Lights (DRLs) not deactivating when headlights are on have been noted in manufacturer communications.
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 |
|---|---|---|---|---|
| Wear Protection | Diesel engines face high friction loads. | DP020QT-EA | Delivers up to 6X more wear protection than leading industry standards. | Based on OM646LA cam wear test. |
| Temperature Extremes | Cold starts or high heat can degrade oil. | DP020QT-EA | Excels in hot and cold temperature extremes. | Not confirmed for all specific ambient conditions. |
| Transmission Heat | Heavy towing generates extreme heat. | ULVPK-EA | Withstands the rigors of heavy towing and elevated temperatures. | Requires proper system cooling. |
Recall, TSB, and manufacturer communication notes
NHTSA Recall Information:
- Seat Belt Fasteners: A recall (22V617000) was issued for improperly formed rivets in third-row seat belt buckle assemblies.
- Exterior Lighting: A recall (22V903000) involves the Daytime Running Lights (DRLs) failing to deactivate when headlights are on, which may cause glare.
Disclaimer: Always verify open recalls by VIN through an authorized Chevrolet dealer or the NHTSA website.
About this vehicle
The 2022 Chevrolet Suburban is part of the twelfth generation of this long-running full-size SUV nameplate. This specific model features the 3.0L 6-cylinder Duramax diesel engine (LM2), which belongs to the GM Duramax diesel family. Unlike traditional gasoline small-block engines, the Duramax line is engineered for high torque and efficiency, making it suitable for large-scale towing and heavy passenger transport.
The vehicle utilizes contemporary chassis architecture that shares significant mechanical commonality with other GM full-size trucks like the Chevrolet Silverado. Because this model is designed for long-distance highway cruising and high-capacity utility, maintenance focus often shifts toward diesel-specific requirements such as fuel quality, specialized coolant specifications, and rigorous oil viscosity management to ensure engine longevity.
Common questions about this vehicle’s diesel oil and maintenance
What is the correct oil viscosity for my 2022 Suburban Diesel?
The required viscosity is 0W-20 for all temperatures. The AMSOIL lookup lists DP020QT-EA for this application.
How much oil should I buy for an oil change?
You will need 7 quarts of oil to complete a standard oil change including the filter replacement.
Can I use Dexos D oil in my Duramax engine?
Yes, the AMSOIL lookup notes that vehicles originally using GM Dexos2 may use a GM Dexos D licensed engine oil of the appropriate viscosity grade.
What should I do if my transmission shifts harshly?
Some owners have reported issues with transmission control valve wear. You should consult a certified technician to check for potential service bulletins or mechanical failures.
Does AMSOIL provide a filter for this engine?
Yes, the AMSOIL lookup recommends the WIX Oil Filter with part number WL10351-EA.
How often should I change my coolant?
While specific intervals vary, AMSOIL offers protection for up to 150,000 miles or 5 years for their Passenger Car & Light Truck Antifreeze.
Disclaimer: This information is derived from provided source data. Always consult your owner’s manual and a certified professional before performing vehicle maintenance.