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Customer reviews for Mobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40 4, 1-gallon bottles for
Mobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40 4, 1-gallon bottles
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4.8 out of 5 stars
stars989 ratings459 reviews
  1. 5 stars92% (908)
  2. 4 stars4% (42)
  3. 3 stars2% (15)
  4. 2 stars1% (7)
  5. 1 star2% (17)

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Showing 71-80 of 459 reviews
Aug 9, 2025
Camping
5 out of 5 stars review

Verified Purchase

good price

Review from walmart.com
Helpful?71PFIMTJQYAV7192496819
Sep 17, 2025
Truck Driver
5 out of 5 stars review

Verified Purchase

Good price

Good Price

Helpful?71PFIMTJQYAV7192496819
Jun 2, 2025
Phenom
5 out of 5 stars review

Verified Purchase

Great price

Great price

Helpful?71PFIMTJQYAV7192496819
Jun 17, 2025
WalmartCustomer
5 out of 5 stars review

Verified Purchase

Great oil, great price.

Review from walmart.com
Helpful?71PFIMTJQYAV7192496819
Nov 26, 2011
Harold196
5 out of 5 stars review

Great Investment !

I've used Mobil Delvac 1300 since 1999.. I have had 3 big trucks with 500+ HP Detroit Engines and put over 1 million miles on them, with absolutly No Oil Fatigue Problems.. I use Mobil Delvac in every car , pickup , garden tractors and lawnmowers that i own today ! !

Helpful?71PFIMTJQYAV7192496819
Feb 24, 2022
OhMan
5 out of 5 stars review

Verified Purchase

Good Oil

Use this oil in the semi tractor regularly

Helpful?71PFIMTJQYAV7192496819
Apr 30, 2023
Jeremy
1 out of 5 stars review

Verified Purchase

Watch the price when you check out

The oil was on sell and you guy's charge me full price

Helpful?71PFIMTJQYAV7192496819
Oct 20, 2021
Joe Trucker
5 out of 5 stars review

Verified Purchase

Reliability!!

Used this oil on Detroit Series 60 and on my Cummins. Best conversational oil I have used so far.

Helpful?71PFIMTJQYAV7192496819
Apr 19, 2024
steve
5 out of 5 stars review

Verified Purchase

Very good deal

if you know what you're using this for, then it's a great deal compared to what you would normally buy

Review from walmart.com
Helpful?71PFIMTJQYAV7192496819
Sep 15, 2020
John
5 out of 5 stars review

Verified Purchase

Works great and a great price

Great oil at great price. Use it in the tractors and with lesser cost tend to change it out more frequently.

Review from walmart.com
Helpful?71PFIMTJQYAV7192496819