Skip to Main Content
Sams Club
Sams Club
Customer reviews for Mobil Delvac 1300 Super 15W-40 Motor Oil - 55 Gal. Drum for
Mobil Delvac 1300 Super 15W-40 Motor Oil - 55 Gal. Drum
4.8 out of 5 stars
stars137 ratings124 reviews
  1. 5 stars89% (122)
  2. 4 stars7% (9)
  3. 3 stars1% (1)
  4. 2 stars1% (1)
  5. 1 star3% (4)

Member photos

Sort by |
Showing 101-110 of 124 reviews
Nov 30, 2023
Scottie
5 out of 5 stars review

Verified Purchase

Owner

I run Mobil Delvac 15W-40 in all of our diesel engines of our farm equipment

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Oct 2, 2024
Steve K
4 out of 5 stars review

Verified Purchase

Mobil Delvac

Slow rebate check process. It shouldn't take over 2 months for rebate check to be mailed.

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
May 21, 2025
Daniel4285641
5 out of 5 stars review

Verified Purchase

Always works

Have been running in my truck with no issues for 125,000 miles

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Dec 29, 2023
Popsi Bear
5 out of 5 stars review

Verified Purchase

A Must for farm tractors.

This is the only oil we trust for our Diesel tractors.

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Oct 5, 2025
Shaneb
5 out of 5 stars review

Works great

I use it every time I do an oil change on my 2021 GMC 2500 DURAMAX I have had great luck with its performance and great price

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Apr 4, 2020
Lawman Jr
5 out of 5 stars review

Made my LBZ Duramax quite!!

I bought a low mileage 2006 LBZ 2500HD Silverado last fall. The original owner had always had the oil chaged at the local Chevrolet dealership. I changed the oil at my friends shop and he recommended Mobil Delvac 1300 Super 15W-40. Within 100 miles the engine was running much quiter.

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Aug 3, 2021
Jack of all trades
5 out of 5 stars review

Keeps my Cummins Hummin

I’ve been running Mobil Delvac 1300 Super for the last 12 years. 10 years in class 8 trucks and last 2 years in my Ram 6.7 p/u. Never an oil related issue. I also run Mobil Delvac 1 75w90 in my AAM Differentials. I use Mobil lubricants in everything I own.

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Sep 16, 2021
Raven
5 out of 5 stars review

2,000,000 mile oil

I’ve been using mobile Delvac 1300 15W-40 I ordered and picked up my truck new had 8 miles on it I have 1,940,000 on it never touched engine C 15 cat other than routine maintenance tuneup‘s and easy Mobile Dale vac ever since I got the truck new

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Dec 10, 2020
DPhelps
5 out of 5 stars review

2000 Ford F-350 Powerstroke Crew Cab

This is the only oil I've ever used in this truck and I'm at 435,000 miles with no oil consumption. I do use a 6 Qt. Gulf Coast bypass filter and change the oil at 10,000 miles, it is still clear with only a light tint to it.

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332
Jul 15, 2019
Rex57
5 out of 5 stars review

Best oil

The best oil I have ever used in my diesel truck I had a Cat motor went a million miles on it when i would climb a Mountain my oil pressure would stay up and stay steady if i used Shell oil my needle would bounce up and down I swear by Mobil Delvac.

Review from mobiloil.com
Helpful?4I9M4XGU28QG13893657332