For the 2014 GMC Savana 2500 equipped with the 6.6L 8-cylinder LGH M Diesel Turbo engine, the oil capacity is 10 quarts (including filter replacement). The preferred viscosity for temperatures above -18°C is SAE 15W-40, though 5W-40 is recommended for all temperatures when ambient conditions are below 0°F (-18°C) to improve cold starting. AMSOIL recommends Signature Series 15W-40 Max-Duty Diesel Oil and the EAO52-EA oil filter.
What oil does a 2014 GMC Savana 2500 6.6L Diesel take?
The engine requires an oil with a CJ-4 specification. For standard operating temperatures above -18°C (0°F), SAE 15W-40 is the preferred viscosity. If you are operating in extreme cold where ambient temperatures drop below 0°F (-18°C), AMSOIL recommends using 5W-40 to improve engine cold starting performance.
AMSOIL product recommendations
Based on the vehicle specifications, AMSOIL provides several high-performance lubrication and filtration options to support heavy-duty diesel operations.
Engine Oil Options
| Product Name | Code |
|---|---|
| Signature Series 15W-40 Max-Duty Diesel Oil | DMEQT-EA |
| 15W-40 Heavy-Duty 100% Synthetic Diesel Oil | ADPQT-EA |
Oil Filter Options
| Product Name | Code |
|---|---|
| AMSOIL Oil Filter | EAO52-EA |
| WIX XP Oil Filter | 57202XP-EA |
| WIX Oil Filter | 57202-EA |
Coolant & Transmission Fluid
| Product Name | Code |
|---|---|
| Passenger Car & Light Truck Antifreeze | ANTPC1G-EA |
| Propylene Glycol Antifreeze | ANT1G-EA |
| Signature Series Fuel-Efficient ATF | ATLPK-EA |
| OE Fuel-Efficient ATF | OTLQT-EA |
Engine Oil Specifications
| Attribute | Specification/Value |
|---|---|
| Oil Grade (Lookup) | CJ-4 |
| Preferred Viscosity (> -18°C) | SAE 15W-40 |
| Cold Start Viscosity (< -18°C) | 5W-40 |
Oil Change Capacity & Torque
| Component | Capacity/Torque |
|---|---|
| Oil Capacity (with filter) | 10 quarts |
| Oil Drain Plug Torque | 18 ft/lbs |
Note: Always check the oil level after refilling.
Automatic Transmission Specifications
The 2014 GMC Savana 2500 with the 6L90 transmission requires specific fluid management for optimal shifting and protection.
| Fill Type | Capacity |
|---|---|
| Initial Fill | 6 quarts |
| Total Fill (6L90) | 12.4 quarts |
Coolant System Capacities
Coolant capacity varies depending on the specific vehicle configuration, such as heater options and front of house (FOH) equipment.
- With AHR: 22.7 quarts
- With O AHR: 21.1 quarts
- With O RR Heater With FOH: 22.1 quarts
- With RR Heater With FOH: 23.7 quarts
Diesel maintenance notes for this vehicle
Maintaining a Duramax diesel engine requires strict adherence to filtration and fluid integrity standards. Because these vehicles are often used in high-utility, commercial, or towing applications, the following should be noted:
- Filtration: High-quality oil filters like the EAO52-EA provide 99 percent filtering efficiency at 20 microns to help reduce engine wear.
- Cold Weather: In sub-zero environments, switching to a 5W-40 viscosity can mitigate cold start issues.
- Drain Intervals: Using high-quality synthetic oils like the Signature Series may allow for confidently extended drain intervals.
Common diesel oil-related concerns and how AMSOIL products may help
| Concern | Why it matters | AMSOIL Product | How it may help | Limitation |
|---|---|---|---|---|
| Engine Wear | Diesel engines face high pressure and friction. | Signature Series 15W-40 | Delivers up to 6X more wear protection. | Requires proper service intervals. |
| Cold Starting | Thick oil can hinder startup in winter. | 5W-40 Viscosity | Improves cold starting when below 0°F. | Not a mechanical repair for engine issues. |
| Contaminants | Small particles cause abrasive wear. | AMSOIL Oil Filter | 99% efficiency at 20 microns. | Must be replaced regularly. |
Common maintenance concerns for this vehicle
Owners of the 6.6L Duramax platform should focus on high-quality filtration and fluid management. Given its heavy-duty designation, maintaining the fuel system, cooling system, and lubrication integrity is critical for longevity in demanding commercial or towing environments.
Recall, TSB, and manufacturer communication notes
Official NHTSA recall research for the 2014 GMC Savana 2500 returned no recall records. Additionally, no complaint records were found via the NHTSA complaints API for this specific year/make/model combination. However, owners should always verify open recalls by VIN, as applicability depends on production date and specific equipment.
About this vehicle
The 2014 GMC Savana 2500 is a full-size van that belongs to a long-running series of vehicles produced by General Motors. As a sibling to the Chevrolet Express, the Savana has been a staple in the GM lineup since 1996. These vans are frequently utilized in various configurations, including passenger and cargo variants, as well as cutaway chassis designs intended for commercial applications such as ambulances, motorhomes, and small trucks.
Given its heavy-duty designation (2500 series), this vehicle is typically geared toward high-utility, commercial, or towing use cases. The powertrain features a 6.6L V8 diesel engine from the Duramax lineage. The Duramax family is well-known within General Motors’ truck and van offerings for providing the necessary torque required for heavy-duty applications.
From a maintenance perspective, because these vehicles are often used in demanding commercial environments or for long-distance hauling, maintaining the fuel system, cooling system, and lubrication integrity is critical. Service professionals should always verify specific technical details regarding the ‘L LGH M’ engine code through official service manuals to ensure exact compliance with factory specifications.
Common questions about this vehicle’s diesel oil and maintenance
How much oil does my 2014 GMC Savana 2500 6.6L take?
It takes 10 quarts of oil when performing a change that includes the oil filter.
What is the correct oil viscosity for winter use?
When ambient temperatures are below 0°F (-18°C), using a 5W-40 viscosity is recommended to improve cold starting.
Can I use AMSOIL Signature Series for my Duramax engine?
Yes, the AMSOIL Signature Series 15W-40 (DMEQT-EA) is designed for this application and offers outstanding extreme-pressure protection.
What should I use for the oil drain plug?
The oil drain plug should be torqued to 18 ft/lbs.
How often can I change my oil?
While specific intervals depend on usage, AMSOIL Signature Series products are designed to help you confidently extend drain intervals.
How do I check for open recalls on my Savana 2500?
You should verify open recalls by checking your specific VIN through official manufacturer or NHTSA channels, as recall applicability can depend on production date and trim.
Disclaimer: Not confirmed from source data. Always consult the manufacturer’s owner manual or a certified technician before performing maintenance to ensure compliance with exact factory specifications.