(3 pack) Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon
(3 pack) Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon
Hero image 0 of (3 pack) Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon, 0 of 12
Rollback

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

4.7 stars out of 915 reviews
(4.7)|
915 ratings
Pack Size:3 Pack
Car
Check if this fits your vehicle

Key item features

  • Premium Performance: Mobil Delvac Extreme 15W-40 is a high-performance, full synthetic diesel engine oil designed for modern diesel engines.
  • Extended Oil Life: Delivers extended performance for up to two times beyond OEM recommended oil drain intervals*.
  • Heavy-Duty Applications: Suitable for a wide range of heavy-duty, on- and off-highway applications, including engines operating under heavy loads.
  • Oxidation Stability: Provides exceptional oxidation stability**, anti-wear performance, and high temperature performance.
  • Cold Weather Performance: Offers excellent low-temperature performance for increased oil flow at startup, controlling sludge formation, and maintaining shear stability.
  • Compatibility: Fully backward compatible, meeting or exceeding the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and other service categories.
  • Wear Protection: Provides resistance to corrosive and abrasive wear, promoting long life of critical wear surfaces.
Generated by AI
Current price is Now $59.31
You save $6.60
was $65.91
15.4 ¢/fl oz
Price when purchased online
  • Free shipping
  • Free 90-day returns

How do you want your item?

Try 30 days for just $1! Choose a plan at checkout.
How do you want your item?
Columbus, 43215
Arrives by Tomorrow
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible

This item includes:

  • 3-pack of Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 1 Gallon
walmart plus

Try 30 days of Walmart+ for just $1!

T&C apply.
Claim offer now

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.7 out of 5 stars
stars915 ratings243 reviews
How item rating is calculated

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 243 reviews

Mar 14, 2025
Sandy
5 out of 5 stars review

Verified Purchase

I have been using mobile 1 for many years. It is a great oil, at a discounted price and in stock. My only problem when ordering is the default was on one gallon and kept giving me an error message saying this product would not work with the vehicle in my garage. Once I selected the 3 gallon option, it was fine.

Incentivized Review
Helpful?8b98b530-0b0c-11f1-8e30-63e7131886fb15068110205
Feb 5, 2026
MALCOLM
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Protects and Runs smooth

I use this Mobil Delvac synthetic oil in a Toyota Land Cruiser Prado with a diesel engine 1KZ-TE. This oil is excellent and runs quite. I changed the oil and filter at 5,000 miles and the viscosity and color was normal. Mobil engineered a top tier synthetic diesel engine oil!

Helpful?8b98b530-0b0c-11f1-8e30-63e7131886fb15068110205
Aug 1, 2025
Virgil
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Duramax Diesel Engine Oil

My truck holds 10 quarts when changing oil. This container helps make this task very simple utilizing the one and done method ultimately reducing needless waste if ordering individual quart containers. As for this Mobile product, it meets the ASE requirements for my engine.

Helpful?8b98b530-0b0c-11f1-8e30-63e7131886fb15068110205