Mobil Delvac 1 ESP Heavy Duty Full Synthetic Diesel Engine Oil 5W-40, 1 Gal.
Mobil Delvac 1 ESP Heavy Duty Full Synthetic Diesel Engine Oil 5W-40, 1 Gal.
Hero image 0 of Mobil Delvac 1 ESP Heavy Duty Full Synthetic Diesel Engine Oil 5W-40, 1 Gal., 0 of 8
Popular pick

Mobil Delvac 1 ESP Heavy Duty Full Synthetic Diesel Engine Oil 5W-40, 1 Gal.

4.8 stars out of 204 reviews
(4.8)|
204 ratings
Car
Check if this fits your vehicle

Key item features

  • Advanced Formula: Advanced full synthetic diesel engine oil that helps to extend engine life and fuel economy potential* of modern diesel engines operating in severe conditions
  • High-Performance Compatibility: Formulated to help high-performance diesel engines with turbocharger, direct-injection, low-emission designs, and low-sulfur and biodiesel fuel formulations
  • Oxidation Resistance: Provides excellent oxidation performance, anti-wear, and anti-scuff properties that help to reduce engine deposits and keep engines running reliably
  • Cold Weather Performance: Excellent low-temperature performance for increased oil flow to critical bearing surfaces at startup and controlling sludge formation
  • Extended Protection: Provides outstanding protection against oil thickening and degradation, helping to reduce the number of oil changes and oil disposal needs
  • Wide Application: Recommended for most engine generations, on-and-off highway applications, heavy-duty diesel engines using low-sulfur diesel fuels, and many biodiesel fuel formulations
  • Industry Standards: Meets or exceeds the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4, SN, SM
Generated by AI
Current price is $25.9720.3 ¢/fl oz
Price when purchased online
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $25.97
One-time purchase $25.97

How do you want your item?

Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.
How do you want your item?
Columbus, 43215
Arrives by Today
.
Order within 5 hr 24 min
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
walmart plus

Get free delivery, shipping and more*

*Restrictions apply
Try Walmart+ now

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.8 out of 5 stars
stars204 ratings102 reviews
How item rating is calculated

Reviews summary

Pros
  • : Offers lower prices compared to others.
  • : Made with high-end ingredients and build.
  • : Performs well in freezing temperatures.
  • : Used in trucks without issues.
Generated by AI

Customer images

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

Showing 1-3 of 102 reviews

Dec 20, 2025
Buddriver
5 out of 5 stars review

Seller Verified Purchase

Best Oil Money Can Buy!

I've been using Mobil Delvac 1 for almost 30 years. All my work trucks, and every diesel pickup that I've owned. Every time I've done an oil analysis, it's come back that the oil still had all it's additive package, even when I've ran extended drain intervals. I trust Mobil Delvac 1, that's why I will continue to use it, and I recommend it to anyone looking for a quality oil.

Review from mobiloil.com
Helpful?2JF0B8KT8H2W167510327
Nov 12, 2025
Alex
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great Product not so good fulfillment

The product is excellent, however the order fulfillment has been quite the ordeal! I have ordered from Walmart in the past and never had this issue. I ordered 4 gallons of oil and over a two day period I have received 3 separate single Gallon deliveries. I am still out a Gallon and have made 2 calls to customer service for a refund for the missing Gallon and still have not seen it. Hopefully this is not the new norm for Walmart online!

Helpful?2JF0B8KT8H2W167510327
Sep 7, 2025
Wattnxt
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great for VW Diesels

Perfect for VW/Audi TDi vehicles in Wisconsin and other areas where temperatures can vary from -25°F to 105°F. Meets all VW specs for diesel use, and is compatible with DPF and SCR systems as it is ultra low ash. Will buy again.

Helpful?2JF0B8KT8H2W167510327