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Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15w-40, 1 Gal (3 pack)
Users say:
This product is a great value and is suitable for a variety of vehicles. It is a synthetic blend not a full synthetic, and is robust enough to cater to pre-emission trucks. It is also a great price from Walmart and auto parts stores. Customers have reported that it has improved engine performance and decreased clicking and diesel clattering.
Mobil Delvac Extreme 15W-40 is a high-performance synthetic diesel engine oil that helps to deliver extended performance for up to two times beyond OEM recommended oil drain intervals* for modern diesel engines operating in extreme conditions. Mobil Delvac Extreme 15W-40 is recommended for use in a wide range of heavy-duty application…
Mobil Delvac Extreme 15W-40 is a high-performance synthetic diesel engine oil that helps to deliver extended performance for up to two times beyond OEM recommended oil drain intervals* for modern diesel engines operating in extreme conditions. Mobil Delvac Extreme 15W-40 is recommended for use in a wide range of heavy-duty applications and operating environments found on- and off-highway conditions, including engines operating under heavy loads. Fully backward compatible, it delivers excellent performance in both newer and older heavy-duty engines, meeting or exceeding the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and other service categories. This diesel engine oil provides exceptional high temperature performance, oxidation stability**, and resistance to corrosive and abrasive wear to help promote long life of critical wear surfaces. Mobil Delvac Extreme 15W-40 also offers excellent low-temperature performance for increased oil flow to critical bearing surfaces at startup, controlling fluidity and pumpability for smooth starting in cold weather. (*Results may vary based on vehicle/engine condition, driving and environmental conditions Consult OEM or ExxonMobil before implementing extended ODIs. ** Based on the performance in the Volvo T-13 engine test.)
Review summary
AI-generated content
This product is a great value and is suitable for a variety of vehicles. It is a synthetic blend not a full synthetic, and is robust enough to cater to pre-emission trucks. It is also a great price from Walmart and auto parts stores. Customers have reported that it has improved engine performance and decreased clicking and diesel clattering.
Pros
- Great value
- Robust additive package
- Quieter engine operation
- Suitable for older pre-emission trucks
Cons
- Not a full synthetic blend
Read original reviews
Description
Mobil Delvac Extreme 15W-40 is a high-performance synthetic diesel engine oil that helps to deliver extended performance for up to two times beyond OEM recommended oil drain intervals* for modern diesel engines operating in extreme conditions. Mobil Delvac Extreme 15W-40 is recommended for use in a wide range of heavy-duty applications and operating environments found on- and off-highway conditions, including engines operating under heavy loads. Fully backward compatible, it delivers excellent performance in both newer and older heavy-duty engines, meeting or exceeding the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and other service categories. This diesel engine oil provides exceptional high temperature performance, oxidation stability**, and resistance to corrosive and abrasive wear to help promote long life of critical wear surfaces. Mobil Delvac Extreme 15W-40 also offers excellent low-temperature performance for increased oil flow to critical bearing surfaces at startup, controlling fluidity and pumpability for smooth starting in cold weather. (*Results may vary based on vehicle/engine condition, driving and environmental conditions Consult OEM or ExxonMobil before implementing extended ODIs. ** Based on the performance in the Volvo T-13 engine test.)
Specifications
| API Service Classification | CK-4, CJ-4, CI-4 PLUS, CI-4 |
| Application | Heavy-duty diesel engines |
| Base Oil | Synthetic |
| Brand | Mobil Delvac |
| Compatibility | Fully backward compatible |
| Features | Extended performance, high temperature performance, oxidation stability, resistance to corrosive and abrasive wear, low-temperature performance |
| Package Type | Gal |
| Performance Level | High-performance |
| Protection | Long life of critical wear surfaces, increased oil flow to critical bearing surfaces at startup |
| Recommended Use | Modern diesel engines operating in extreme conditions |
| Recommended for | A wide range of heavy-duty applications and operating environments found on- and off-highway conditions, including engines operating under heavy loads |
| SAE Grade | 15W-40 |
| Synthetic or Conventional | Synthetic |
| Type | Diesel Engine Oil |
| Viscosity | 15W-40 |
| Volume | 1 Gal |
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