Mobil Delvac 1300 Super 15W-40 Heavy-Duty Diesel Engine Oil
Premium Synthetic Blend 15W-40 Diesel Oil for On-Highway, Off-Highway and Mixed Fleets
Mobil Delvac 1300 Super 15W-40 is a premium synthetic blend heavy-duty diesel engine oil formulated for modern low-emission engines as well as older diesel equipment. It meets or exceeds API CK-4 requirements and provides wear protection, oxidation resistance, soot and viscosity control, and high-temperature deposit protection for demanding on-road and off-road service.
The low-ash formulation is designed for modern emissions systems, including diesel particulate filters, diesel oxidation catalysts and selective catalytic reduction systems. Mobil Delvac 1300 Super 15W-40 is also suitable for older diesel engines and selected gasoline engines where its viscosity grade and applicable API performance category are specified.
Key Benefits
- SAE 15W-40 heavy-duty diesel engine oil
- Premium synthetic blend formulation
- Meets or exceeds API CK-4 requirements
- Backward compatible with API CJ-4, CI-4 PLUS, CI-4 and CH-4
- Meets API SP gasoline-engine performance requirements
- Excellent oxidation stability
- Helps control high-temperature deposits and low-temperature sludge
- Soot and viscosity control for heavy-duty diesel operation
- Helps protect against corrosive and abrasive wear
- Strong Total Base Number retention for acid control
- Helps control oil consumption
- Low-temperature fluidity and pumpability
- Low-ash formulation for DPF, DOC and SCR aftertreatment systems
- Suitable for newer and older diesel engine designs
- Suitable for mixed-fleet operations where the applicable specifications are required
Wear, Soot and Viscosity Protection
Heavy-duty diesel engines can expose engine oil to soot, high loads, heat and extended periods of operation.
Mobil Delvac 1300 Super 15W-40 is formulated to resist corrosive and abrasive wear while maintaining viscosity control as soot accumulates in the oil.
Its soot-handling and viscosity-control properties help maintain lubrication and pumpability throughout the service interval.
High-Temperature and Oxidation Stability
High operating temperatures accelerate oil oxidation, which can contribute to viscosity increase, sludge and deposits.
Mobil Delvac 1300 Super uses severely hydro-processed base stocks and a tailored additive system to provide oxidation stability and resistance to high-temperature deposits.
This makes it suitable for demanding applications where engines operate under sustained load, high temperatures or severe duty cycles.
Emissions Aftertreatment Compatibility
Mobil Delvac 1300 Super 15W-40 uses a low-ash formulation that meets API CK-4 and CJ-4 requirements.
It is designed for modern diesel engines equipped with emissions technologies including:
- Diesel Particulate Filters (DPF)
- Diesel Oxidation Catalysts (DOC)
- Selective Catalytic Reduction (SCR)
- Exhaust Gas Recirculation (EGR)
Always confirm the required viscosity grade and engine-oil specification in the equipment manufacturer's documentation.
Extended Drain Capability
ExxonMobil identifies Mobil Delvac 1300 Super as capable of extended performance for up to 50% beyond OEM-recommended oil-drain intervals under suitable conditions.
This is not a universal drain interval. Actual oil-drain capability depends on engine condition, duty cycle, operating load, fuel quality, environmental conditions, oil consumption, maintenance practices and used-oil analysis.
Consult the engine manufacturer or ExxonMobil before extending oil-drain intervals beyond the OEM recommendation.
Recommended Applications
Mobil Delvac 1300 Super 15W-40 is recommended for a broad range of heavy-duty applications, including:
- On-highway heavy-duty trucks
- Long-haul trucking
- Short-haul and pickup/delivery service
- Construction equipment
- Mining equipment
- Agricultural machinery
- Off-highway equipment
- Severe low-speed and heavy-load operation
- Older naturally aspirated diesel engines
- Modern turbocharged diesel engines
- Diesel engines equipped with EGR and aftertreatment systems
- Mixed fleets
- Diesel equipment from American, European and Japanese OEMs
- Selected gasoline engines requiring compatible API performance and SAE 15W-40 viscosity
ExxonMobil also identifies off-highway operation using fuels containing up to 500 ppm sulfur among the product's applications.
Current Approvals for Mobil Delvac 1300 Super 15W-40
The current July 2026 ExxonMobil Product Data Sheet lists the following approvals specifically for the 15W-40 grade:
- Cummins CES 20081
- Cummins CES 20086
- DTFR 15C100
- Detroit Fluids Specification 93K218
- Deutz DQC II-18 LA
- Mack EO-N Premium Plus 03
- Mack EOS-4.5
- Renault Trucks RLD-3
- Volvo VDS-2
- Volvo VDS-3
- Volvo VDS-4.5
Recommended for Applications Requiring
- API CF
- API CF-2
- API CF-4
- API CG-4
- MAN M 3275-1
- MAN M 3575
Meets or Exceeds
- API CH-4
- API CI-4
- API CI-4 PLUS
- API CJ-4
- API CK-4
- API SL
- API SM
- API SN
- API SP
- JASO DH-2
- ACEA E7
- ACEA E11
- Caterpillar ECF-3
- Isuzu DEO for DPD-equipped vehicles
The distinction between approvals, recommendations and performance claims is important. Always compare the exact requirement in the engine or equipment manual with the current ExxonMobil Product Data Sheet.
Typical Properties
| Property |
Typical Value |
| SAE Viscosity Grade |
15W-40 |
| Sulfated Ash |
0.9% |
| Density at 15°C |
0.875 g/mL |
| Flash Point, COC |
225°C |
| HTHS Viscosity at 150°C |
4.0 mPa·s |
| Kinematic Viscosity at 40°C |
109 mm²/s |
| Kinematic Viscosity at 100°C |
14 mm²/s |
| Pour Point |
-33°C |
| Total Base Number |
9.4 mg KOH/g |
Typical properties represent normal production values and should not be treated as product specifications.
Frequently Asked Questions
What is Mobil Delvac 1300 Super 15W-40?
Mobil Delvac 1300 Super 15W-40 is a premium synthetic blend heavy-duty diesel engine oil designed for modern and older diesel engines used in on-highway and off-highway service.
Is Mobil Delvac 1300 Super 15W-40 synthetic?
It is a premium synthetic blend, not a full synthetic engine oil.
Is Mobil Delvac 1300 Super 15W-40 API CK-4?
Yes. The current ExxonMobil Product Data Sheet states that Mobil Delvac 1300 Super 15W-40 meets or exceeds API CK-4 requirements.
Is Mobil Delvac 1300 Super backward compatible with older API diesel specifications?
Yes. The current product meets or exceeds API CJ-4, CI-4 PLUS, CI-4 and CH-4 in addition to CK-4.
Does Mobil Delvac 1300 Super 15W-40 meet API SP?
Yes. The current July 2026 Product Data Sheet lists API SP among the requirements met or exceeded by the 15W-40 grade.
Can Mobil Delvac 1300 Super 15W-40 be used with a DPF?
Yes. Its low-ash API CK-4 formulation is designed for engines using diesel particulate filters and other modern aftertreatment technologies.
Can Mobil Delvac 1300 Super be used in engines with EGR?
Yes. ExxonMobil recommends it for modern heavy-duty diesel engines equipped with EGR and aftertreatment systems.
Is Mobil Delvac 1300 Super suitable for older diesel engines?
Yes. ExxonMobil identifies the product as suitable for older and naturally aspirated diesel designs as well as modern heavy-duty engines.
Can Mobil Delvac 1300 Super 15W-40 be used in gasoline engines?
Yes, where the manufacturer permits SAE 15W-40 and a compatible API gasoline category. The current PDS lists API SL, SM, SN and SP for the 15W-40 grade.
Does Mobil Delvac 1300 Super meet Cummins CES 20086?
Yes. The current Product Data Sheet lists Cummins CES 20086 approval for Mobil Delvac 1300 Super 15W-40.
Does Mobil Delvac 1300 Super meet Volvo VDS-4.5?
Yes. The current PDS lists Volvo VDS-4.5 approval for the 15W-40 grade.
Does Mobil Delvac 1300 Super meet Detroit Diesel 93K222?
The current July 2026 ExxonMobil approval table does not list Detroit Fluids Specification 93K222 for the 15W-40 grade. It currently lists Detroit 93K218 for 15W-40. Check the current PDS before selecting the oil for an application that specifically requires 93K222.
Does Mobil Delvac 1300 Super meet ACEA E9?
The current July 2026 ExxonMobil sheet does not list ACEA E9 for the 15W-40 grade. It currently lists ACEA E7 and ACEA E11 among the requirements met or exceeded.
What is the TBN of Mobil Delvac 1300 Super 15W-40?
The current typical Total Base Number is 9.4 mg KOH/g using ASTM D2896.
What is the pour point of Mobil Delvac 1300 Super 15W-40?
The current typical pour point is -33°C.
Can Mobil Delvac 1300 Super be used for extended oil-drain intervals?
ExxonMobil states that the formulation can deliver extended performance up to 50% beyond OEM-recommended oil-drain intervals under suitable conditions. Results vary, and extended drains should only be implemented after consulting the OEM or ExxonMobil and considering operating conditions and oil analysis.
What applications use Mobil Delvac 1300 Super 15W-40?
Typical applications include heavy-duty trucking, mining, construction, agriculture, off-highway equipment, mixed fleets and other diesel equipment requiring SAE 15W-40 with the applicable performance specification.
