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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
stars996 ratings459 reviews
  1. 5 stars92% (914)
  2. 4 stars4% (43)
  3. 3 stars2% (15)
  4. 2 stars1% (7)
  5. 1 star2% (17)

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Showing 1-10 of 459 reviews
May 7, 2023
Chico
5 out of 5 stars review

Verified Purchase

Ok

Great product except the shipping

Helpful?71PFIMTJQYAV7192496819
Apr 18, 2018
Q See Cameras
5 out of 5 stars review

Verified Purchase

Good oil for a great price

Motorhome uses 4 1/2 gallons so this saves me a pile of money on okl changes.

Helpful?71PFIMTJQYAV7192496819
Mar 2, 2025
Chaz
5 out of 5 stars review

Verified Purchase

Best Bang For Your Buck!

Best price around, use Mobil one in all my vehicles

Helpful?71PFIMTJQYAV7192496819
Jan 22, 2026
David
5 out of 5 stars review

Verified Purchase

I have used Delvac exclusively in my DD15 for its entire life. 888,000 miles and counting. With NO rebuild! Changed at 25k give or take with 1 gallon of Lucas also included. Never had a bad oil sample report.

Review from walmart.com
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Jan 7, 2025
Andrew
5 out of 5 stars review

Verified Purchase

Business owner

The price was amazing

Helpful?71PFIMTJQYAV7192496819
Mar 29, 2026
Matt
5 out of 5 stars review

Verified Purchase

Great quality oil for low price

I own a mobile diesel repair shop and this is buy far the best oil for the money i cant touch oil of this quality for cheaper then this

Helpful?71PFIMTJQYAV7192496819
Apr 27, 2026
Alschief
5 out of 5 stars review

Verified Purchase

Selva’s Diesel Oil

Very competitive price excellent oil

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Oct 22, 2025
john
5 out of 5 stars review

Verified Purchase

Good Oil. Great price

Please change color of jug. Very hard to see amount of oil remaining in jug when doing partial usage

Review from walmart.com
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Mar 16, 2026
Victor
5 out of 5 stars review

Verified Purchase

Great Oil product

Great product and have using this for all my vehicles

Review from walmart.com
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Mar 17, 2026
MikeM
5 out of 5 stars review

Verified Purchase

Great Price

Great price on bulk oil for my Chevy diesel truck. It’s always fun to shop At my local Sam’s Club.

Helpful?71PFIMTJQYAV7192496819