Best Diesel Oil: image
Top Pick

CK-4 engine wear tests, Shell Rotella T5 15W-40 Synthetic Blend provides excellent protection against deposits and oil breakdown under high temperatures. The product has been approved by the National Highway Traffic Safety Commission (NHSSC) for use in heavy-duty vehicles. It is also recommended to be used in combination with petrol or diesel engines. Notably, the new standards will be effective from January 1, 2018.

Value for Money

Shell Rotella T4 has been designed to provide enhanced shear stability and optimal oil pressure in your diesel engine. The product is a part of the Diesel Particulate Filter (DPF) range, which provides protection for engines with EGR and Diesel Particulate Filter. It can be used on both new and older engines. The formulation also helps prevent deposits from occurring due to high friction between the oil and fuel. Notably, it was introduced in 2015 as part of a major overhaul.

Most Discussed

Shell Rotella T4 15W-40 heavy duty engine oil has been approved by the Indian government for use in high-performance diesel engines. The product is designed to provide superior protection against corrosion due to increased shear and improved oil aeration. It contains no additives or additives of any kind, making it an ideal choice for heavy duty engines. Notably, this comes amid reports that petrol engines could be subjected to more severe environmental conditions.

Best Diesel Oil

Top 10 Best Diesel Oil

1
Why we chose it
  • Package Weight : 23.8 pounds
  • Formulated with advanced additive technology, which is engineered for superior engine cleanliness throughout the oil drain interval
  • Provides increased shear stability for better viscosity control and optimal engine oil pressure
  • Triple Protection from wear, deposits and oil breakdown, this conventional Diesel Engine Oil provides exceptional wear protection for heavy duty engines for longer life
Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Case of 3): image
96%
customers recommend this product
4.8/ 5
Mileage4.6
Value for money4.4
Longevity4.4
2
Why we chose it
  • Outstanding oxidation resistance supports long oil life in heavy duty engines
  • Superior wear protection for hardworking heavy-duty trucks and equipment
  • The Only One endorsed and recommended by Cummins
  • Superior synthetic base stocks provide faster, safe starts during freezing weather and enhanced thermal properties for hot weather operations
Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA, Case of 3: image
96%
customers recommend this product
4.8/ 5
Mileage4.6
Longevity4.6
Value for money4.5
Sheerness4.5
3
Why we chose it
  • Recommeded for engines specifying API service CI-4, CI-4 Plus, CJ-4, and CK-4
  • Superior corrosion protection
  • Robust detergents remove deposits and maintain engine cleanliness
  • Greatly extends oil drain intervals
  • Fit type: Universal Fit
  • Top quality synthetic base oils provide excellent cold flow and protection at all operating temperatures
Royal Purple 04154 Duralec Super SAE 15W-40 API CK-4 High Performance Diesel Motor Oil - 1 Gallon: image
98%
customers recommend this product
4.9/ 5
Longevity5
Mileage4.5
Value for money4.2
4
Why we chose it
  • Provides outstanding performance with ultra-low sulfur diesel and also with normal and low sulfur diesel fuels
  • Premium quality heavy duty motor oil manufactured in the USA
  • Formulated with ISOSYN technology
  • Formulated to meet the requirements of post-2007 low emission engines
  • May be used in older conventional engines and gasoline engines
Delo 400 SDE SAE Conventional Heavy Duty Diesel Engine Oil 15W-40,1 Gallon, Pack of 3: image
94%
customers recommend this product
4.7/ 5
Value for money4.6
Mileage4.5
5
Why we chose it
  • Superior wear protection for hardworking heavy-duty trucks and equipment
  • The Only One endorsed and recommended by Cummins
  • One Solution Technology suitable for a wide range of heavy-duty engines including diesel, gas and natural gas applications
  • Outstanding oxidation resistance supports long oil life in heavy duty engines
Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3: image
96%
customers recommend this product
4.8/ 5
Longevity4.8
Mileage4.7
Value for money4.6
Top Pick
6
Why we chose it
  • Improves low-temperature flow (compared to conventional 15W-40 oils)
  • Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation
  • Helps control engine deposits for reliability at extended oil drain intervals (always follow the OEM recommended oil drain interval)
  • Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests
  • Synthetic blend 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
  • Ideal for on-highway fleets, construction, and agricultural machinery, and diesel pickup trucks including high-power vehicles that require resistance to heat and stress
  • Case of three 1-gallon bottles with ergonomic design for easy handling and pouring
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1-Gallon, Case of 3): image
98%
customers recommend this product
4.9/ 5
Mileage4.8
Longevity4.8
Value for money4.7
Sheerness4.6
7
Why we chose it
  • Meets or exceeds API CJ-4 requirements, and is designed to provide extra performance Shell Rotella T4 performs well in both older and new engines
  • Provides outstanding protection for virtually all heavy duty diesel engines, including the latest emission controlled engines using EGR and containing a Diesel Particulate Filter
  • Exclusive low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low emission vehicles
  • Formulated for enhanced deposit protection to help keep engines cleaner over the oil drain interval
  • Enhanced shear stability performance for viscosity control and optimal oil pressure in your engine
Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (5 Gallon Pail): image
96%
customers recommend this product
4.8/ 5
Value for money4.7
Longevity4.6
Mileage4.6
8
Why we chose it
  • Helps control engine deposits for reliability at extended oil drain intervals (always follow the OEM recommended oil drain interval)
  • Single 1-gallon bottle with ergonomic design for easy handling and pouring
  • Improves low-temperature flow (compared to conventional 15W-40 oils)
  • Ideal for on-highway fleets, construction, and agricultural machinery, and diesel pickup trucks including high-power vehicles that require resistance to heat and stress
  • Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests
  • Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation
  • Synthetic blend 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack): image
96%
customers recommend this product
4.8/ 5
Mileage4.7
Longevity4.7
Value for money4.6
Sheerness4.5
9
Why we chose it
  • For best performance, follow the manufacturer’s recommendations in your vehicle owner s manual.
Mobil Super 96819 15W-40 Delvac 1300 Motor Oil - 1 Gallon (Pack of 4): image
94%
customers recommend this product
4.7/ 5
10
Why we chose it
  • Low SAPS fully synthetic motor oil for older generation diesel engines in passenger vehicles.
  • Item Package Weight: 10.44 pounds
  • Specifically developed for engines equipped with diesel particulate filters (DPF).
  • 5 Liter
Liqui Moly 2022 Diesel High Tech Synthetic 5W-40 Motor Oil - 5 Liter: image
98%
customers recommend this product
4.9/ 5
Mileage5
Longevity5
Value for money4.9
Top Pick
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)
Shell Rotella T5 15W-40 Synthetic Blend heavy duty diesel oil with Triple Protection Plus technology delivers all the benefits you’ve come to expect from Shell Rotella, and then some. Triple Protection Plus is the unique combination of Triple Protection advanced additive technology and synthetic base oils. Triple Protection Plus represents protection against wear, deposits, oil breakdown plus better low temperature flow. This synthetic blend oil provides excellent equipment protection, long engine life and maintains viscosity control under high temperatures. It delivers: Excellent wear protection Exceptional deposit control/cleanliness Protection against oil breakdown Sustained emission control system durability in particulate filters and after-treatment systems For Every Hardworking Need Shell Rotella T5 15W-40 Synthetic Blend is suitable for a wide range of heavy duty engine applications. It is an excellent choice for on-highway fleets, construction, agriculture, and diesel pick-up trucks, including high-power vehicles where resistance to increased heat and stress is required. It provides all the protection you expect from an SAE 15W-40 but in a synthetic blend heavy duty engine oil. Going Beyond CK-4 Wear Limits Shell Rotella T5 15W-40 Synthetic Blend Technology works even harder than new CK-4 specifications require, delivering an average of 37% better wear protection than the maximum wear requirements2. Strong Cleanliness Multiple tests demonstrate that Shell Rotella T5 15W-40 diesel oil provides excellent piston cleanliness, exceeding Mercedes and Volvo limits. 1 Shell Rotella T5 maintains oil viscosity over the OEM recommended drain interval. Always follow the OEM's recommended oil drain interval 2 Calculated average based on API...Read more
Ranking the Brands
Shell Rotella T: 20.00%
Valvoline: 20.00%
Royal Purple: 10.00%
Chevron: 10.00%
Shell Rotella: 20.00%
Mobil 1: 10.00%
Liqui Moly: 10.00%

Comparison Table

Сomparison: Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Case of 3): imageСomparison: Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA, Case of 3: imageСomparison: Royal Purple 04154 Duralec Super SAE 15W-40 API CK-4 High Performance Diesel Motor Oil - 1 Gallon: imageСomparison: Delo 400 SDE SAE Conventional Heavy Duty Diesel Engine Oil 15W-40,1 Gallon, Pack of 3: imageСomparison: Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3: imageСomparison: Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1-Gallon, Case of 3): imageСomparison: Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (5 Gallon Pail): imageСomparison: Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack): imageСomparison: Mobil Super 96819 15W-40 Delvac 1300 Motor Oil - 1 Gallon (Pack of 4): imageСomparison: Liqui Moly 2022 Diesel High Tech Synthetic 5W-40 Motor Oil - 5 Liter: image
Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA, Case of 3Royal Purple 04154 Duralec Super SAE 15W-40 API CK-4 High Performance Diesel Motor Oil – 1 GallonDelo 400 SDE SAE Conventional Heavy Duty Diesel Engine Oil 15W-40,1 Gallon, Pack of 3Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (5 Gallon Pail)Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack)Mobil Super 96819 15W-40 Delvac 1300 Motor Oil – 1 Gallon (Pack of 4)Liqui Moly 2022 Diesel High Tech Synthetic 5W-40 Motor Oil – 5 Liter
Package InformationJugBottleBottleJugBottleBottlePailBottleBottleJug
Viscosity15w-405W4015w-4015w-4015W-4015W-4015w-4015W-4015w-405w-40
BrandShell Rotella TValvolineRoyal PurpleChevronValvolineShell RotellaShell Rotella TShell RotellaMobil 1Liqui Moly
Vehicle Service TypeTruckTruckTruckCar, TruckTruckCar, Truck
Liquid Volume1 Gallons12 Quarts1 Quarts1 Gallons3 Gallons128 Fluid Ounces640 Fluid Ounces128 Fluid Ounces128 Fluid Ounces5 Liters
ManufacturerRotellaValvolineROYAL PURPLEDeloValvolineShell RotellaRotellaRotellaMobil 1Liqui Moly
Item Weight23.8 pounds23.9 pounds7.67 pounds24.2 pounds24 pounds24 pounds8.09 pounds7.58 pounds1 pounds10 pounds
Product Dimensions15 x 6 x 10 inches14.5 x 9.13 x 11.44 inches5 x 10 x 7 inches13.6 x 12.4 x 8.4 inches14.5 x 9.13 x 11.44 inches12.25 x 12.25 x 15.75 inches7.7 x 3.6 x 12.6 inches16.75 x 11.75 x 9.6 inches12.5 x 9.5 x 3.5 inches
Is Discontinued By ManufacturerNoNoNoNoNoNoNo
Size1 Gallon, Pack of 31 GA, Case of 31 Gallon (128 Ounces)1 GA, Case of 31 Gallon (128 Ounces),(Case of 4)5 Liter

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