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For the 2021 GMC Savana 2500 equipped with the 2.8L 4-cylinder Diesel Turbo engine (Engine Code [1] LWN 1), the recommended oil viscosity is 5W-30 for all temperatures, or 0W-40 for temperatures below -29°C. The engine oil capacity is 5.9 quarts when performing a change with a filter. AMSOIL recommends AMSOIL 5W-30 100% Synthetic Diesel Oil (DP530QT-EA) for outstanding protection in this diesel application.
What oil does a 2021 GMC Savana 2500 2.8L Diesel take?
The 2021 GMC Savana 2500 with the 2.8L 4-cylinder diesel engine requires an oil viscosity of 5W-30 for all temperature ranges. If you are operating in extreme cold (below -29°C), a 0W-40 viscosity is recommended. The AMSOIL lookup note mentions that 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 data, the following high-performance lubricants and additives are recommended for your 2021 GMC Savana 2500 2.8L Diesel Turbo.
Engine Oil
| Product Name | Viscosity | Part Code |
|---|---|---|
| AMSOIL 5W-30 100% Synthetic Diesel Oil | 5W-30 / 0W-40 | DP530QT-EA |
AMSOIL lookup oil grade: SEOA5
Transmission & Gear Fluids
| Component | Product Name | Part Code |
|---|---|---|
| Automatic Transmission | Signature Series Fuel-Efficient 100% Synthetic ATF | ATLPK-EA |
| Rear Differential (9.5 RG) | SEVERE GEAR® 75W-85 Synthetic Gear Lube | SVLPK-EA |
| Rear Differential (10.5 RG) | SEVERE GEAR® 75W-90 Synthetic Gear Lube | SVGPK-EA |
Coolant & Brake Fluids
| Component | Product Name | Part Code |
|---|---|---|
| Engine Coolant (Pre-mix) | Passenger Car & Light Truck Antifreeze & Coolant | ANTPC1G-EA |
| Engine Coolant (Concentrate) | Propylene Glycol Antifreeze and Engine Coolant | ANT1G-EA |
| Brake Fluid | DOT 3 and DOT 4 100% Synthetic Brake Fluid | BFLVCN-EA |
Fuel & Maintenance Additives
Engine Oil Specifications & Capacity
| Specification | Details |
|---|---|
| Oil Viscosity | 5W-30 (All Temps) / 0W-40 (<-29°C) |
| Oil Grade (AMSOIL Lookup) | SEOA5 |
| Oil Capacity | 5.9 quarts (with filter) |
| Drain Plug Torque | 18 ft/lbs |
Note: After refilling, always check the oil level.
Filters and Other Components
| Component | Recommendation |
|---|---|
| Oil Filter | No recommendations available from source data |
| Air Filter | No recommendations available from source data |
| Oil Vapor Filter | No recommendations available from source data |
How much transmission fluid does it take?
For the 8-speed automatic transmission (8L90), the total fill capacity is 10.9 quarts for a standard setup, or 11.4 quarts if the vehicle is equipped with a cooler. If you are performing an initial fill, the requirement is 7.4 quarts.
What is the coolant capacity for this vehicle?
Coolant capacity varies based on your heater configuration. For vehicles with Front & Rear Heaters and Front Of Hood (FOH) components, the capacity is 16.9 quarts. If equipped with Front & Rear Heaters without FOH, it is 16.7 quarts. Other configurations range from 14.5 to 14.7 quarts.
Differential and Transfer Case Lubrication
The rear differential requirements depend on the axle ratio:
- 9.5 RG: Requires 75W-85 viscosity. Capacity is 5.3 pints. The AMSOIL lookup note references GM P/N 19300457 for synthetic axle lubricant.
- 10.5 RG: Requires appropriate fluid (viscosity not explicitly specified in summary, but AMSOIL lists 75W-90 options). Capacity is 5.5 pints.
Note: No recommendations were provided for the transfer case lubricant.
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 |
|---|---|---|---|---|
| Diesel Injector Deposits | Dirty injectors can reduce power and increase emissions. | ADFPCN-EA | Cleans injectors and lubricates pumps to restore power. | Treat rate varies by bottle size. |
| Engine Wear | Diesel engines face high pressure and friction. | DP530QT-EA | Delivers up to 6X more wear protection than leading industry standards. | Requires regular oil changes. |
| Heavy Towing/Heat | High temperatures can degrade transmission fluid. | ATLPK-EA | Withstands rigors of heavy towing and elevated temperatures. | Diagnosis required if failure occurs. |
Diesel maintenance notes for this vehicle
Because the 2021 GMC Savana 2500 is frequently used in commercial duty cycles, owners should prioritize regular inspections of the turbocharger system and fuel delivery components. High-mileage commercial use often necessitates a focus on cooling systems and diesel-specific filtration requirements to ensure longevity.
Common maintenance concerns for this vehicle
Owners of these full-size vans often monitor several key areas:
- Turbocharger Integrity: Regular inspection of the turbo system is vital for modern diesel engines.
- Cooling System Health: Maintaining proper coolant levels and quality is essential for heavy-duty work.
- Fuel Delivery: Ensuring clean fuel to prevent injector wear and maintain torque.
Recall, TSB, and manufacturer communication notes
Official NHTSA recall research for the 2021 GMC Savana 2500 returned no recall records at the time of this writing. However, owners should always verify open recalls by VIN, as applicability depends on production date, trim, and specific equipment. Official TSB research was not included in this draft; please consult a dealer for the latest manufacturer communications.
About this vehicle
The 2021 GMC Savana is a full-size van that serves as a long-standing staple in General Motors’ commercial and passenger vehicle lineup. As part of a series produced since 1996, the Savana is closely related to the Chevrolet Express. These vehicles are designed for diverse applications, ranging from standard passenger transport to specialized cutaway chassis configurations used for ambulances, motorhomes, and small trucks.
The powertrain identified for this specific lookup is a 2.8L 4-cylinder diesel turbo engine. While the Savana platform has a long history involving various Duramax and GM diesel engines, owners should always verify exact engine specifications and RPO codes to ensure maintenance accuracy. Given their typical use in heavy-duty commercial work or cargo hauling, these vehicles are often subjected to demanding duty cycles that require high-quality lubrication to manage heat and wear.
Common questions about this vehicle’s diesel oil and maintenance
What is the oil capacity for my 2.8L diesel Savana?
The capacity is 5.9 quarts when replacing the oil filter. Always check the level after refilling.
Can I use 0W-40 in my GMC Savana 2500?
Yes, AMSOIL recommends 0W-40 for temperatures below -29°C.
What should I use for my rear differential?
The lookup lists SVLPK-EA for 9.5 RG axles and SVGPK-EA for 10.5 RG axles.
How can I protect my diesel injectors?
Using a fuel additive like ADFPCN-EA can help clean injectors and lubricate pumps to reduce wear.
Does the Savana 2500 have any active recalls?
NHTSA returned no records for this model year, but you should always check your specific VIN with a dealer.
What is the torque spec for my oil drain plug?
The confirmed torque value for the oil drain plug is 18 ft/lbs.
Disclaimer: Technical specifications should be cross-referenced with your official owner’s manual or GM service documentation before performing any maintenance.