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Item #:
56223597
Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 10W-30, 1 Gal
89% of respondents would recommend this to a friend
Item #:
56223597
TMT 164
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Order now and get it around Thursday, October 15
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Mobil Delvac Extreme 10W-30 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.
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What Stands Out
Superior Protection
Mobil Delvac Extreme ensures optimal engine protection under severe conditions, enhancing longevity and performance, significantly reducing engine wear compared to standard oils.
Full Synthetic Formula
This premium full synthetic oil offers superior thermal stability, excellent viscosity retention, and improved fuel efficiency, providing drivers a reliable solution for their heavy-duty diesel engines.
Versatile Compatibility
Designed for a wide range of diesel engines, Mobil Delvac Extreme meets various industry standards, making it an ideal choice for both on-highway and off-highway applications.
Product Details
- Premium synthetic blend diesel engine oil for modern diesel engines in extreme conditions
- Recommended for on- and off-highway heavy-duty applications
- Contains 46% more antioxidant and 44% more anti-wear additive than Mobil Delvac 1300 Super
- Provides oxidation, anti-wear, and anti-scuff performance to reduce engine deposits and control wear
- Excellent low- and high-temperature performance for increased oil flow at startup and stay-in-grade shear stability
| Motor oil type | Full Synthetic Motor Oils |
| Motor oil viscosity | 10W - 30 |
| Diesel fuel compatible | Y |
| Product line | Delvac Extreme |
| Rec. use | Truck |
| Product net content parent | 128 Fluid Ounces |
| Compatible cars | Formulated for use in the latest heavy duty diesel engines operating in extreme applications, where API FA-4 is recommended by the engine builder/OEM. |
| Size | 1 gal |
| Brand | Mobil Delvac |
| Features | Meets OEM Requirements |
| Has high mileage additives | N |
| Vehicle type | Car |
| Manufacturer | ExxonMobil |
| Item Weight | 7.5 lbs (3.4 kg) |
Who Should Buy?
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Heavy-Duty Trucking
Ideal for long-haul fleets requiring superior engine protection and performance in extreme conditions.
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Commercial Vehicles
Perfect for buses, vans, and other commercial vehicles needing reliable lubrication for diesel engines.
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Agricultural Machinery
Excellent choice for agricultural equipment that operates under challenging conditions and demands high-performance oil.
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Gasoline Engines
Not suitable for gasoline engines; specifically formulated for diesel engine requirements and performance.
Product Description
Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 10W-30, 1 Gal
About This Item
Introducing the Mobil Delvac Extreme 10W-30 Synthetic Blend Heavy Duty Diesel Engine Oil, the ultimate protection against extreme conditions. This premium synthetic blend oil is specially formulated to extend the life of modern diesel engines, making it the perfect choice for heavy-duty, on- and off-highway applications. With 46 percent more antioxidant and 44 percent more anti-wear additive than Mobil Delvac 1300 Super, this oil provides unrivaled oxidation, anti-wear, and anti-scuff performance. Engine deposits are reduced and wear is controlled, allowing your engine to operate at its best even under heavy loads. One of the standout features of this engine oil is its excellent low- and high-temperature performance.
It ensures increased oil flow at startup, effectively controlling sludge formation and maintaining stay-in-grade shear stability. This means your engine stays protected in all weather conditions, giving you peace of mind on the road. Not only does the Mobil Delvac Extreme 10W-30 Synthetic Blend Heavy Duty Diesel Engine Oil offer superior performance, but it also stands out among the competition. This oil has been designed for heavy-duty trucks, commercial vehicles, industrial applications, and even heavy equipment.
It is also ideal for off-road vehicles, construction machinery, and any other diesel engine operating in extreme conditions. Get the most out of your engine with this efficient diesel engine oil. Not only does it offer unparalleled protection, but it also helps improve fuel economy, making it an excellent choice for long-lasting, reliable performance. Don't settle for anything less than the best. Upgrade your engine oil to the Mobil Delvac Extreme 10W-30 Synthetic Blend Heavy Duty Diesel Engine Oil and experience the difference for yourself.
Invest in the longevity and efficiency of your engine today.
Have any Query? Chat with us
Customer Questions & Answers
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Question:
Is it compatible with both newer and older heavy-duty engines?
Answer: Yes, it is fully backward compatible and provides excellent performance in both newer and older heavy-duty engines. -
Question:
How does it compare to conventional diesel engine oil in terms of extended performance?
Answer: It can deliver extended performance for up to two times beyond OEM recommended oil drain intervals compared to conventional diesel engine oil. -
Question:
What are the fuel economy benefits and under what conditions do they depend?
Answer: The oil has the potential to improve fuel economy, and the savings are dependent on vehicle engine type, outside temperature, driving conditions, and the current engine oil viscosity.
Mobil Delvac Mobil 1 Synthetic Oil Editorial Review
Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 10W-30, 1 Gal is designed to deliver outstanding performance and protection in heavy-duty diesel engines. This full synthetic motor oil is formulated to meet the latest API FA-4 specifications and is compatible with various heavy-duty diesel engines. Users have noted its effectiveness in reducing valvetrain noise at startup, showcasing its capability to ensure smooth engine operation. Many have expressed satisfaction with its performance, calling it one of the best synthetic oils for diesel engines, particularly valuing its application in trucks and high-demand environments.
Customer Reviews & Ratings
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Pros
- Full synthetic formulation enhances engine protection
- Reduces valvetrain noise at startup
- Recommended for heavy-duty diesel engines
- Compatible with newer diesel technologies
- consistent performance in extreme conditions
Cons
- Availability may vary by location
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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TMT 164
Order now and get it around Thursday, October 15
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Premium high-performance synthetic diesel engine oil
- Helps extend engine life in extreme conditions
- Recommended for heavy-duty on- and off-highway applications
- Exceptional oxidation stability, anti-wear, high temperature performance
- Potential to improve fuel economy
- Excellent low-temperature performance for increased oil flow at startup
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