Maintaining the correct oil capacity in your Cummins engine is crucial for optimal performance and longevity. Below is a comprehensive chart detailing the oil capacities for various Cummins engine models.
Let’s jump in.
Cummins Engine Oil Capacity Chart
Automotive On-Road Engines (Primarily Light/Medium-Duty Trucks)
| Engine Model | Production Years | Oil Capacity (with Filter) |
|---|---|---|
| 5.9L Cummins 6BT (12-Valve) | 1989–1998 | 12 quarts (11.4 liters) |
| 5.9L Cummins ISB (24-Valve) | 1998.5–2007 | 12 quarts (11.4 liters) |
| 6.7L Cummins ISB | 2007.5–2018 | 12 quarts (11.4 liters) |
| 6.7L Cummins ISB | 2019–Present | 10 quarts (9.5 liters) |
| 3.0L EcoDiesel (VM Motori, not Cummins) | 2014–2019 | 10.5 quarts (9.9 liters) |
| 3.0L EcoDiesel (VM Motori, not Cummins) | 2020–Present | 8.5 quarts (8.0 liters) |
| 5.0L Cummins ISV5.0 | 2015–2017 | 10 quarts (9.5 liters) |
| 6.7L Cummins ISB (High Output) | 2021–Present | 10 quarts (9.5 liters) |
| 6.4L HEMI V8 (Gasoline, for comparison) | 2014–Present | 7 quarts (6.6 liters) |
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Industrial and Off-Road Engines (4-Cylinder and Mid-Range)
| Engine Model | Production Years | Oil Capacity (with Filter) |
|---|---|---|
| 4BT (3.9L Cummins) | Various | 10 quarts (9.5 liters) |
| 4BTA (3.9L Cummins, Turbo Aftercooled) | Various | 11 quarts (10.4 liters) |
| QSB4.5 | 2005–Present | 11.5 quarts (10.9 liters) |
| QSB6.7 | Various | 16 quarts (15.1 liters) |
| B3.9 (3.9L Cummins) | Various | 10 quarts (9.5 liters) |
| B4.5 (4.5L Cummins) | Various | 12 quarts (11.4 liters) |
Mid-Range Inline-6 Engines (Marine and Industrial)
| Engine Model | Production Years | Oil Capacity (with Filter) |
|---|---|---|
| 6B (5.9L Cummins, Naturally Aspirated) | Various | 12 quarts (11.4 liters) |
| 6BT (5.9L Cummins, Turbocharged) | Various | 12 quarts (11.4 liters) |
| 6BTA (5.9L Cummins, Turbo Aftercooled) | Various | 14 quarts (13.2 liters) |
| 6CTA 8.3L Cummins | Various | 14 quarts (13.2 liters) |
| QSC8.3 | Various | 20 quarts (18.9 liters) |
| QSL9 | Various | 24 quarts (22.7 liters) |
| 6CTA8.3-M (Marine Variant) | Various | 22 quarts (20.8 liters) (shallow pan option; varies by configuration) |
| ISC 8.3L | Various | 20 quarts (18.9 liters) |
| ISB 6.7L (Industrial) | Various | 12 quarts (11.4 liters) |
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Heavy-Duty Inline Engines
| Engine Model | Production Years | Oil Capacity (with Filter) |
|---|---|---|
| L10 (10L Cummins) | 1982–1998 | 10 gallons (38 liters) |
| ISM11 (11L Cummins) | 1998–2010 | 10 gallons (38 liters) |
| ISX12 (12L Cummins) | 2010–Present | 11 gallons (41.6 liters) |
| ISX15 (15L Cummins) | 2001–Present | 11–12 gallons (41.6–45.4 liters) |
| QSX15 (15L Cummins) | Various | 48 quarts (45.4 liters) |
| ISX (15L, Predecessor) | 2001–2010 | 14 gallons (53 liters) (standard; varies by pan) |
| ISL 8.9L | Various | 24 quarts (22.7 liters) |
| ISX12N (Natural Gas) | 2013–Present | 11 gallons (41.6 liters) |
| X12 (Efficiency Series) | 2017–Present | 12 gallons (45.4 liters) |
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V-Series Heavy-Duty Engines (Large Industrial and Marine)
| Engine Model | Production Years | Oil Capacity (with Filter) |
|---|---|---|
| NTA855 (14L Cummins V8) | Various | 32–72 liters (8.5–19 gallons) (varies by pan and gear train) |
| KTA19 (19L Cummins V8) | Various | 32–72 liters (8.5–19 gallons) (varies by pan and gear train) |
| VTA28 (27L Cummins V12) | Various | 80–100 liters (21–26 gallons) (varies by configuration) |
| KTA38 (38L Cummins V12) | Various | 120–140 quarts (113–132 liters) (varies by configuration) |
| KTA50 (50L Cummins V16) | Various | 200 quarts (189 liters) (approximate; varies by setup) |
| VTAA28 (27L Cummins V12, Aftercooled) | Various | 90 liters (23.8 gallons) (varies) |
| QSK19 (19L Cummins V8) | Various | 60 quarts (56.8 liters) |
Best Engine Oils For Cummins Engines
1. Shell Rotella T6 Full Synthetic 5W-40
- One of the most popular choices for 5.9L and 6.7L Cummins engines.
- Provides excellent protection in both high and low temperatures.
- Helps improve fuel economy and reduces engine wear.
- Meets API CK-4 standards.
2. Valvoline Premium Blue 15W-40 (The Only One Endorsed by Cummins)
- Known as “The Only One,” officially recommended by Cummins.
- Strong oxidation resistance and deposit control.
- Great for both on-highway and off-highway heavy-duty applications.
- Meets API CK-4 and CES 20086.
3. Mobil Delvac 1300 Super 15W-40
- High-performance oil trusted for heavy-duty diesel applications.
- Excellent protection against sludge and high-temperature deposits.
- Widely used in ISX, ISM, and QSX series engines.
- Meets API CK-4, CJ-4, CI-4 Plus, and CH-4.
4. Chevron Delo 400 XSP Synthetic 5W-40
- Premium synthetic designed for durability and extended oil life.
- Excellent wear protection and soot control.
- Ideal for modern Cummins ISB/ISX engines with EGR, DPF, and SCR systems.
- Meets API CK-4.
5. Amsoil Signature Series Max-Duty Synthetic Diesel Oil 15W-40
- Known for extended drain intervals and premium protection.
- Reduces oil consumption and improves engine cleanliness.
- Excellent for towing and heavy-duty applications.
- Meets and exceeds Cummins CES 20081/20086 specs.
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FAQ
How many litres of oil does a Cummins take?
The oil capacity of a Cummins engine varies by model. For example:
- 5.9L 12V/24V Cummins: approx. 11.4 liters (12 quarts)
- 6.7L Cummins: ranges from 9.5 to 11.4 liters (10–12 quarts)
- ISX15 Cummins: approx. 41.6–45.4 liters (11–12 gallons)
How much oil does a 24v Cummins take?
The 24-valve 5.9L Cummins engine typically holds 12 quarts (11.4 liters) of oil, including the filter.
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How much oil does 8.3 Cummins hold?
The Cummins 6CTA 8.3L engine generally requires 7.6 to 13.2 liters (8 to 14 quarts), depending on the oil pan and configuration.
How much oil does a 4 cylinder Cummins hold?
For 4-cylinder Cummins engines like the 4BT, the oil capacity is typically 10 quarts (9.5 liters), including the filter.
How many liters is a Cummins?
Cummins engines vary greatly:
- ISB6.7: 6.7 liters
- ISX15: 14.9 liters
- 4BT: 3.9 liters
- ISF2.8: 2.8 liters
- Each model name often reflects the engine’s displacement in liters.
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What is the best oil for Cummins?
Cummins recommends 15W-40 for most engines operating in moderate climates. High-quality brands include:
- Valvoline Premium Blue (Cummins-endorsed)
- Shell Rotella T6
- Mobil Delvac 1300 Super
For newer engines or colder climates, 5W-40 synthetic oils are preferred.
How many liters is a 12V Cummins?
The 12-valve Cummins engine is a 5.9-liter inline-six diesel engine.
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Which Cummins engine is the best?
This depends on the application, but generally:
- 5.9L 12V: Known for simplicity and reliability
- 6.7L: Offers modern power and emissions compliance
- ISX15: Ideal for heavy-duty trucking
For longevity and ease of maintenance, the 5.9L 12V is highly regarded.
What is the difference between 12V and 24V Cummins?
- 12V Cummins (1989–1998): Mechanical injection, simpler electronics
- 24V Cummins (1998.5–2002): Electronic injection, more power, and efficiency
- The 24V version offers better performance, while the 12V is prized for durability and ease of repair.
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