For the 2021 Cadillac Escalade equipped with the 3.0L 6-cylinder LM2 T Diesel Turbo engine, the oil capacity is 7 quarts (with filter). The recommended viscosity for all temperatures is 0W-20. 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 2021 Cadillac Escalade 3.0L Diesel take?
The 2021 Cadillac Escalade with the 3.0L 6-cylinder LM2 T Diesel Turbo engine requires an oil viscosity of 0W-20 for all temperature ranges. The AMSOIL lookup oil grade is SEOA5. Always check your oil level after refilling to ensure it is within the correct range.
AMSOIL product recommendations
Based on the AMSOIL lookup data, the following products are recommended for your 2021 Cadillac Escalade diesel engine and drivetrain components.
Engine Oil & Filter
| Product Name | Code |
|---|---|
| AMSOIL 0W-20 100% Synthetic Diesel Oil | DP020QT-EA |
| WIX Oil Filter | WL10351-EA |
Automatic Transmission & Transfer Case
| Product Name | Code |
|---|---|
| AMSOIL Signature Series ULV 100% Synthetic ATF | ULVPK-EA |
| AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF | ATLPK-EA |
| AMSOIL OE Fuel-Efficient 100% Synthetic ATF | OTLQT-EA |
Coolant & Gear Lubricants
| Product Name | Code |
|---|---|
| AMSOIL Passenger Car & Light Truck Antifreeze | ANTPC1G-EA |
| AMSOIL Propylene Glycol Antifreeze | ANT1G-EA |
| AMSOIL SEVERE GEAR® 75W-85 Synthetic Gear Lube | SVLPK-EA |
Engine Oil Specifications
| Specification | Details |
|---|---|
| Oil Viscosity | 0W-20 (All TEMPS) |
| AMSOIL Lookup Oil Grade | SEOA5 |
Engine Oil Capacity
| Condition | Capacity |
|---|---|
| With Filter Change | 7 quarts |
How much transmission fluid does it take?
The capacity for the 10-speed automatic transmission depends on whether your vehicle is equipped with a cooler. For the 10L80 transmission, the total fill is 11.6 quarts without a cooler or 12 quarts with a cooler. An initial fill of 8.1 quarts is also noted.
Automatic Transmission Capacity (10L80)
| Configuration | Total Fill Capacity |
|---|---|
| 10-speed Trans Only | 11.6 quarts |
| 10-speed With Cooler | 12 quarts |
| Initial Fill | 8.1 quarts |
Note: The AMSOIL lookup note references the WSS-M2C949-A specification, which was developed by Ford and GM. Products meeting this specification are available under DEXRON ULV and MERCON ULV tradenames.
What is the transfer case lubricant requirement?
For the transfer case (MP3015, 25….AF6), the capacity is 3.2 pints. When performing service, ensure you check the identification tag on the case. The AMSOIL lookup lists ATLPK-EA and OTLQT-EA as options.
Transfer Case Service Specs
| Component | Torque/Capacity |
|---|---|
| Drain Plug Torque | 15 ft/lbs |
| Fill Plug Torque | 15 ft/lbs |
| Capacity (MP3015, 25) | 3.2 pints |
Differential Lubricant Specifications
The front differential requires 2.3 pints of lubricant. For the rear differential with G96, the capacity is 3.2 pints. AMSOIL recommends AMSOIL SEVERE GEAR® 75W-85 (SVLPK-EA).
Differential Capacities
| Location | Capacity |
|---|---|
| Front Differential | 2.3 pints |
| Rear Differential (w/ G96) | 3.2 pints |
Diesel maintenance notes for this vehicle
Maintaining a 3.0L LM2 diesel engine requires attention to specialized service items. Because modern diesel turbochargers and high-pressure fuel systems are complex, adhering to strict fluid change intervals is critical for long-term reliability. Owners should focus on fuel filtration, glow plug health, and Diesel Exhaust Fluid (DEF) management where applicable.
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 pressure and friction. | DP020QT-EA | Delivers up to 6X more wear protection than required by a leading industry standard. | Based on third-party testing in OM646LA cam wear test. |
| Temperature Extremes | Cold starts and high heat affect viscosity. | DP020QT-EA | Excels in hot and cold temperature extremes. | Not confirmed for all specific engine load conditions. |
| Transmission Heat | Heavy towing can overheat fluids. | ULVPK-EA | Withstands the rigors of heavy towing and elevated temperatures. | Requires proper application as per manual. |
Common maintenance concerns for this vehicle
Based on NHTSA consumer reports, owners have noted various concerns regarding engine performance and structural components. While these are owner reports and not verified defects, they highlight areas for regular inspection:
- Engine Performance: Some users have reported unexpected engine stalls or loss of propulsion.
- Drivetrain: Reports of driveshaft-related issues suggest monitoring the rear wheel driveshaft assemblies.
- Electrical/Safety: Inconsistent air bag malfunction indicator lights have been noted in some GM vehicles of this era.
Note: If you experience sudden loss of power or engine stalling, seek professional diagnostic services immediately.
Recall, TSB, and manufacturer communication notes
The following official NHTSA recalls have been identified for the 2021 Cadillac Escalade. Owners should verify their specific VIN with a dealer to confirm if they are affected.
- Fuel System: A recall (Campaign 21V739000) was issued regarding the fuel pump power control module, which may cause intermittent operation or engine stalls.
- Driveline: A recall (Campaign 22V036000) addressed rear wheel driveshaft assemblies that may have improper heat treatment, potentially leading to failure.
- Air Bags: A recall (Campaign 21V421000) involved the communications gateway module incorrectly processing loss of communication with the sensing diagnostic module (SDM).
About this vehicle
The 2021 Cadillac Escalade represents the fifth generation of Cadillac’s flagship full-size luxury SUV. As a premium vehicle manufactured by General Motors, the Escalade is designed to compete in the high-end luxury SUV market, offering a blend of substantial size and sophisticated features.
This specific model year includes internal combustion options that cater to long-distance towing and heavy-duty utility. This vehicle is equipped with a 3.0L 6-cylinder diesel engine (LM2). Diesel variants of the Escalade are typically sought after by owners who require high torque for towing applications or improved fuel efficiency during highway cruising compared to traditional gasoline V8 engines.
Because this is a diesel powertrain, maintenance requirements differ significantly from standard gasoline models. Given the complexity of modern diesel turbochargers and high-pressure fuel systems, adhering to strict fluid change intervals is critical for long-term reliability. As noted in vehicle research, specific technical nuances of the 3.0L LM2 diesel engine family should be verified through a dedicated service manual or manufacturer specifications.
Common questions about this vehicle’s diesel oil and maintenance
What is the correct oil viscosity for my 2021 Escalade Diesel?
The recommended viscosity for all temperatures is 0W-20. AMSOIL recommends DP020QT-EA for this application.
How much oil do I need for an oil change?
You will need 7 quarts of oil when performing a service that includes a filter change. Always check the level after refilling.
Can I use standard gasoline motor oil in this engine?
No. This is a diesel engine and requires specialized diesel oil like AMSOIL 0W-20 Synthetic Diesel Oil to handle the specific combustion and soot requirements of a diesel powertrain.
What should I use for my transfer case?
The AMSOIL lookup lists ATLPK-EA or OTLQT-EA for the transfer case service.
How often should I change my coolant?
While specific intervals depend on your driving conditions, AMSOIL offers protection up to 150,000 miles or 5 years for their Passenger Car & Light Truck Antifreeze.
How do I check for open recalls on my Escalade?
You should contact a Cadillac dealer or visit the official NHTSA website and provide your Vehicle Identification Number (VIN) to confirm any active recalls or manufacturer communications.
Disclaimer: This information is derived from provided AMSOIL and NHTSA data. Always consult your vehicle’s owner manual and verify all specifications with a certified professional before performing maintenance.