Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon

Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon
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Model: 122448
(731)
2 stores
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Product Details

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.)

Mobil Delvac Extreme 15W-40 is a premium and high-performance, full synthetic diesel engine oil that helps to extend engine life for modern diesel engines operating in extreme conditions Works to deliver extended performance for up to two times beyond OEM recommended oil drain intervals* Recommended for use in a wide range of heavy-duty, on- and off-highway applications including engines operating under heavy loads Provides exceptional oxidation stability**, anti-wear performance, and high temperature performance Excellent low-temperature performance for increased oil flow at startup, controlling sludge formation, and stay-in-grade shear stability

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Last Updated: 2025-10-20 23:17:50

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Product Specifications

Technical Details

Manufacturer -
Brand Mobil Delvac
Item model number 122448
Color Yellow
Weight -
Height -
Depth -

Additional Product Information

Product Id 3043490
User Reviews and Ratings
4.7 (731 ratings)
4.7 out of 5 stars
UPC 071924116351

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Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon
Reviews: 731
app.ratings: (731)
Price:
$19.77 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(5)
Reviewed in the USA on Aug 01, 2025

Bought it for my diesel powered Nissan Frontier, works awesome , like new brings the 14 year old power train to life as if it were new ...

Anonymous • Review provider: walmart.com
(2)
Reviewed in the USA on Jul 09, 2025

Because I wanted the shell T6 synthetic *********.5 gallon jug. I had to pay more money for the 5 gallon container and again it wasn't what I wanted I settled for it.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 21, 2025

Great oil. Been using for years. Holds up well whether running empty or pulling.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 02, 2025

This is a great oil for your Diesel Truck-Really good when you check the Mobil rebates! Keep an eye for the rebates and makes your oil half off. Will be buying more.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Apr 27, 2025

It worked perfectly and it was priced very affordably, which I really appreciate appreciated. I will be using this brand from now on.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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