Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 4 pk./1 gal.
$7799
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Smart Summary
Reduces maintenance frequency and costs by safely extending oil drain intervals up to twice the standard OEM recommendations for extreme-duty diesel operations.
Extreme Protection
Delivers exceptional oxidation stability and anti-wear performance validated through rigorous Volvo T-13 testing, ensuring engine protection under the harshest operating conditions.
Bonus $10 Card
$6799
Product Overview
Product Features:
*Results may vary based on vehicle/engine condition, driving and environmental conditions Consult OEM or ExxonMobil before implementing extended ODIs.
** Based on the performance in the Volvo T-13 engine test. Approved by the following OEMs: Deutz DQC II-10 LA, Detroit Fluids Specification 93K218, Detroit Fluids Specification 93K222, Mack EOS-4.5, Mack EO-O Premium Plus, MB-Approval 228.31, Renault Trucks RLD-3, MAN M 3575, MAN M 3275-1, Volvo VDS-4, Volvo VDS-4.5
Product information is provided by the supplier and BJ’s does not represent or warrant the information is accurate or complete. Always consult the product’s labels, warnings, and instructions before use. Please see additional terms atbjs.com/termsofuse| Model Number | 122448 |
|---|---|
| Count | 4 |
| Estimated Delivery | 3-5 Business Days |
| UPC | 071924416352 |
| Warranty | Yes |
| Compatibility | All Types of Modern Vehicles, Including High-Performance, Turbo-Charged, and Supercharged Gasoline and Diesel Multi-Valve Fuel-Injected Engines |
| Number of Quarts | 16 |
| Cycle | 4 |
| Certifications | Formulated to meet or exceed the requirements of API CH-4, CI-4, CI-4 PLUS, CJ-4, CK-4, SN, JASO DH-2-17, ACEA E7, ACEA E9, Caterpillar ECF-3, Cummins CES 20086, and Isuzu DEO (with DPD Equipped Vehicles) |
| Product Type | Full-Synthetic Motor Oil |
| Viscosity | 15W-40 |
| High-Mileage Oil | No |
| Conventional Oil Compatible | Yes |
| Includes | 4 Pack of Motor Oil |
| Item Dimensions | 9.75"D x 17"W x 11.5"H |
| Item Weight | 32 lbs. |
Most Liked Positive Review
My Cummins 6.7 is quiet
I put this full synthetic 15w-40 in my 2016 Ram 3500 last week. Anxious to have an oil analysis in 6 months. Want to settle on an oil that gives me hope high confidence in quality.
Most Liked Negative Review
Virgin oil sample
TBN on initial virgin oil sample was 4.8, very disappointed in this initial analysis. It remains in my engine and have 2000 my les on the oil. There seems to be confusion with Mobil if this is a full synthetic or Synthetic Blend.
Customers say
Overall sentiment is mostly positive, with reviewers consistently praising strong diesel performance, clean engine results, and confidence from oil analyses over extended intervals. The main drawback is a single concern about an unexpectedly low initial TBN reading and confusion about whether the product is fully synthetic.
Reviewed by 16 customers
Mobil Oils
Verified Buyer
I have been using Delvac in my diesels and Mobile 1 in my gas vehicles with great success. Close to 200000 miles on some and no engine failures! BJ's prices make it even more attractive being the best prices I have found from any retailer.
If it's diesel, it's delvac.
Verified Buyer
I've driven diesel trucks since 1995. The only oil I've ever used is Mobil delvac. After hundreds of thousands of miles, I've never had a problem. I trust it and it's never failed me.
Mobil oil
Like the product very much
Price as just OK
Verified Buyer
Price for this multi grade oil was a bit highter than I expected. Quality was very good. I really need to find an excellent grade of Single grade (viscosity) SAE #40 Heavy Duty Diesel motor oil at about $12.00 per gallon. Thanks, Alan V. Cecil
Motor oil
Verified Buyer
Very good experience and good oil.
Quality and good price point
Verified Buyer
I run this in a 2012 MP8 Mack and the oil does help achieve lower ash for emission's and better mpg. The main reason I run it is the engine is has less clatter noise.
for my small engine
Verified Buyer
Reviewed at
very old 1998 kohler magnum. No issues seemed to run fine with no smoke.
Dodge ram
Verified Reviewer
Reviewed at
Just had the top side of my 01 Dodge Ram open to do the intake gaskets and valve cover gaskets. Have been using the Delvac Extreme on this motor since I got the truck 1 1/2 years ago, inside was very clean. Truck has 247k on it for miles, know this oil is not recommended for gas motors but works great for me.
We love Mobil1 products.
Verified Reviewer
Reviewed at
In our household we use Mobil1 products in a lot of our equipment. From our Kubota Tractors to our Cars and Trucks. There products can be counted on to perform.
15w40 for Kubota
Verified Reviewer
Reviewed at
Excellent oil at great price for my Kubota tractor. Was using M1 5w40 but moved back to traditional 15w40 now that synthetic is available.
Kitchen Event
$2299
Mobil Delvac Extreme Heavy Duty Full Synthetic Diesel Engine Oil 15W-40, 4 pk./1 gal.
