When browsing the Internet for diesel engine oils you may be shocked with diversity of items available online. Our automated AI system scanned thousands of diesel engine oil reviews to select only top rated and best-selling products. We analyzed the offers and arranged them in the form of demonstrative table sorted by Score – the internal variable which is calculated for each product using many parameters including sales rank, customer satisfaction rate, number of reviews, popularity and more.
You will find 10 best diesel engine oils and related products in the table below. Diesel engine oil price may change very often, so we can't publish prices on our site, although the site is updated daily. For your convenience there is a link to Amazon next to each product, where you will find actual price.
| Rank | Image | Product | Reviews Scanned | Score | Brand | Buy |
|---|---|---|---|---|---|---|
| 1 |  |
Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Single Pack) | 402 | 9.6 | Shell Rotella | Shop on Amazon |
| 2 |  |
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Case of 3) | 2785 | 9.2 | Shell Rotella | Shop on Amazon |
| 3 |  |
AC Delco DexosD 0w-20 Engine Oil and Oil Filter Change Kit For 3.0L Duramax Diesel LM2 | 1162 | 8.9 | Acdelco | Shop on Amazon |
| 4 |  |
Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3 | 637 | 8.6 | Valvoline | Shop on Amazon |
| 5 |  |
Delo 400 SDE SAE Conventional Heavy Duty Diesel Engine Oil 15W-40,1 Gallon, Pack of 3 | 552 | 8.3 | Chevron | Shop on Amazon |
| 6 |  |
Motorcraft – Oil – Engine (XO10W305Q3SD) | 386 | 8.0 | Motorcraft | Shop on Amazon |
| 7 |  |
Mobil 1 112786 Delvac 1300 Super 15W-40 Diesel Engine Oil – 4 Gallon Pack | 310 | 7.8 | Mobil 1 | Shop on Amazon |
| 8 |  |
TRIAX Fleet Supreme 15W-40 API CK-4, Full Synthetic Diesel Engine Oil, Friction Optimized and Boosted with Molybdenum & Nano-Boron, Superb … | 462 | 7.5 | Triax | Shop on Amazon |
| 9 |  |
Valvoline VV70506-05 Premium Blue 15W40 Motor Oil, 5 gallon | 454 | 7.2 | Valvoline | Shop on Amazon |
| 10 |  |
Mobil Delvac Extreme HD Full Syn Diesel Oil 10W-30, 1 Gal, Case/4 | 210 | 6.9 | Mobil 1 | Shop on Amazon |
* Table last updated: 22 March 2024 1:41 UTC
What is the best diesel engine oil on the market?
The best diesel engine oil (number 1 on our list for 22 March 2024) is Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Single Pack) by Shell Rotella. Average calculated Customer Satisfaction and Product Selling Score for this product is 9.58, which is near to the very maximum of 10 points.
Main features of this product published by seller are:
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- Formulated for enhanced deposit protection to help keep engines cleaner over the oil drain interval
- Exclusive low ash formulation helps protect the exhaust catalysts and particulates filters found on the latest low emission vehicles
- Meets or exceeds API CJ-4 requirements, and is designed to provide extra performance Shell Rotella T4 performs well in both …
- Enhanced shear stability performance for viscosity control and optimal oil pressure in your engine
Click here to visit Amazon and check price for this product. It is listed in the following category: Oils & Fluids > Oils > Motor Oils.
Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Single Pack) is not the only product in the list sold by Shell Rotella.
Another product by this brand which is also in our list is Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Case of 3), it is on the 2 position.
You may also check other products from the top 3, such as Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Case of 3) or AC Delco DexosD 0w-20 Engine Oil and Oil Filter Change Kit For 3.0L Duramax.
