Mobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40, 2.5 Gallon
Mobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40, 2.5 Gallon
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Mobil Delvac 1300 Super Heavy Duty Premium Synthetic Blend Diesel Engine Oil 15W-40, 2.5 Gallon

4.7 stars out of 728 reviews
(4.7)|
728 ratings
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Key item features

  • Premium Quality: Mobil Delvac 1300 Super 15W-40 is a high-performance synthetic blend diesel engine oil.
  • Extended Engine Life: Helps extend engine life for diesel vehicles and equipment in various applications.
  • OEM Collaboration: Developed with top Original Equipment Manufacturers for heavy-duty use.
  • Extended Performance: Delivers performance up to 50% beyond OEM-recommended oil drain intervals.
  • Backward-Compatible: Suitable for both newer and older heavy-duty engines, including gasoline engines with API SN specifications.
  • Excellent Control: Provides superior soot and viscosity control, and resists oil consumption and corrosive wear.
  • Wide Application: Recommended for trucking, mining, construction, agricultural, and marine industries.
  • Industry Standards: Meets or exceeds multiple industry standards and OEM approvals, including API CH-4, CI-4, CJ-4, CK-4, and more.
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Current price is $36.2411.3 ¢/fl oz
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4.7 out of 5 stars
stars728 ratings267 reviews
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Pros
  • : Offered at a lower cost than similar products.
  • : Used in diesel and farm tractors.
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Showing 1-3 of 267 reviews

Dec 29, 2025
Bill T.
5 out of 5 stars review

Seller Verified Purchase

Delvac oil

I prefer this oil for my recently purchased diesel truck. It's a 1996 F-350 turbo powerstroke and has 345,000 miles, so a long engine life oil is important to me. It holds 15 quarts so it's great, and makes sense, to buy it in the 5 gallon buckets. I will continue to use it and was also recommended by my son.

Review from mobiloil.com
Helpful?1KDWDMI0CDXZ19864183
Oct 8, 2025
Chuck77
5 out of 5 stars review

Seller Verified Purchase

Preferred over any other brand

Use in my semi for years. Prefer Mobil to be used in my heavy trucks as well as my personal cars. Mobil is cleaner oil and my semi use to leak using Rotella oil. When started to use Mobil Delvac I have no issues of leaking or nor have to add to oil between oil changes.

Review from mobiloil.com
Helpful?1KDWDMI0CDXZ19864183
Jan 5, 2026
Larry K
5 out of 5 stars review

Seller Verified Purchase

This is all we use

This is all we use in our diesel trucks. Works well and no issues with our engine. Since we only drive diesel trucks, we go through a lot of this oil.

Review from mobiloil.com
Helpful?1KDWDMI0CDXZ19864183