Chevron Delo 400 XLE SB SAE 15W-40 Diesel Engine Oil
Chevron Delo 400 XLE SB SAE 15W-40 (formerly Chevron Delo 400 SDE and Chevron Delo 400 LE) is a synthetic blend heavy-duty engine oil formulated with ISOSYN® Advanced Technology. It combines synthetic and conventional base stocks with an additive system developed for mixed fleets, extended-drain programs, and modern or older heavy-duty engines requiring SAE 15W-40.
Delo 400 XLE SB is recommended for naturally aspirated and turbocharged four-stroke diesel engines and four-stroke gasoline engines where API CK-4 or API SN and SAE 15W-40 are specified. It supports on-highway and off-highway equipment, including engines equipped with Selective Catalytic Reduction, Diesel Particulate Filters, and Exhaust Gas Recirculation systems.
The formulation provides soot dispersancy, piston deposit control, oxidation resistance, shear stability, anti-wear protection, corrosion control, and low-temperature pumpability. It is also approved for Allison heavy-duty transmission units requiring TES-439.
Key Features
- Formulated with ISOSYN® Advanced Technology
- Suitable for mixed diesel and gasoline fleets
- Extended oil drain protection for both on- and off-road diesel engines
- Formulated for modern and older engine designs
- Supports engines equipped with SCR, DPF, and EGR emissions systems
- Provides soot and deposit control
- Supports piston and turbocharger cleanliness
- Protects cylinders, pistons, rings, and valve-train components against wear and corrosion
- Provides oxidation resistance and viscosity control
- Offers improved cold-flow and pumpability compared to conventional SAE 15W-40 oils
- Supports DPF service life and reduced cleaning-related downtime
- Backward compatible with previous API engine-oil service categories
- Approved for Allison TES-439 heavy-duty transmission applications
Recommended Applications
Chevron Delo 400 XLE SB SAE 15W-40 is intended for:
- Modern on-highway low-emission diesel engines
- Older on-highway diesel engines
- Off-highway Tier IV diesel engines
- Naturally aspirated four-stroke diesel engines
- Turbocharged four-stroke diesel engines
- GHG17-compliant diesel-engine designs
- Engines equipped with SCR systems
- Engines equipped with Diesel Particulate Filters
- Engines equipped with EGR systems
- Allison heavy-duty transmissions requiring TES-439
- Mixed fleets operating multiple engine brands and model years
- Oil, gas, construction, agricultural, marine, or mining equipment
Approvals
- API Service Categories CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4, and SN
- Allison TES-439
- Cummins CES 20086
- Detroit Fluids Specification 93K222
- DEUTZ DQC III-18 LA
- DTFR 15C100, previously known as MB 228.31
- Mack EOS-4.5
- MAN M3775
- Renault RLD-3
- Volvo VDS-4.5
Recommended For
- ACEA E11
- Caterpillar ECF-3
- Ford WSS-M2C171-F1
- JASO DH-2
- MTU Category 2.1
Typical Technical Characteristics
The following values are typical of current production and should not be treated as product specifications.
| Property |
Typical Value |
| SAE viscosity grade |
15W-40 |
| Chevron product number |
257004 |
| Density at 15°C |
0.87 kg/L |
| Kinematic viscosity at 40°C |
110 mm²/s |
| Kinematic viscosity at 100°C |
14.9 mm²/s |
| Cold-cranking viscosity at -20°C |
5,200 mPa·s |
| MRV viscosity at -25°C |
17,500 mPa·s |
| High-temperature, high-shear viscosity |
4.2 mPa·s |
| Viscosity index |
141 |
| Flash point |
230°C (446°F) |
| Pour point |
-39°C (-38°F) |
| Sulfated ash |
1.0% mass |
| Base number, ASTM D2896 |
8.0 mgKOH/g |
| Phosphorus |
0.11% mass |
| Sulfur |
0.38% mass |
| Zinc |
0.12% mass |
Frequently Asked Questions
What is Chevron Delo 400 XLE SB 15W-40 used for?
Chevron Delo 400 XLE SB is used in on-highway and off-highway diesel engines, four-stroke gasoline engines, mixed fleets, and Allison heavy-duty transmissions where its viscosity grade, API service category, or applicable OEM approval is specified.
Is Chevron Delo 400 XLE SB fully synthetic?
No. Delo 400 XLE SB is a synthetic blend. It combines synthetic and conventional base stocks with Chevron’s ISOSYN® Advanced Technology additive system.
Is Delo 400 XLE SB backward compatible with older diesel engines?
Delo 400 XLE SB is approved for API CK-4 and several earlier API diesel-engine oil categories, including CJ-4, CI-4 PLUS, CI-4, and CH-4. The required viscosity grade and engine-manufacturer recommendations should still be confirmed.
Can Delo 400 XLE SB extend oil-drain intervals?
Delo 400 XLE SB has extended-drain potential of up to 1.5 times the average recommendation of U.S. Class 8 engine manufacturers. Actual drain intervals depend on the engine, duty cycle, operating conditions, fuel, maintenance practices, and oil condition.
Did Delo 400 XLE SB replace Delo 400 SDE?
Yes. Chevron discontinued Delo 400 SDE SAE 15W-40 and transitioned those customers to Delo 400 XLE SB SAE 15W-40. The former Delo 400 XLE 15W-40 product was also updated to the XLE SB name and blue packaging under product code 257004.
What Delo 400 XLE SB 15W-40 package sizes does Petroleum Service Company offer?
Petroleum Service Company offers Delo 400 XLE SB 15W-40 in several package configurations:
- 3/1 Gallon Case (SKU: 257004388)
- 55 Gallon Drum (SKU: 257004981)
- 6 Gallon Pit-Pack (SKU: 257004687)
