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15w40 Oil Comparison - July 2025

4 Best 15w40 Oil In Canada

1
Best Choice
9.7Exceptional
2
9.6Exceptional
3
9.3Excellent
4
9.2Excellent
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Model

Shell Rotella T6 Full Synthetic 15W-40 Motor Oil, 1 Gallon (3 Pack)
Model
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (5L, Single Pack)
Model
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (5L, Single Pack)
Model
Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (5L, Single Pack)

Brand

Shell Rotella
Brand
Shell Rotella
Brand
Shell Rotella
Brand
Shell Rotella

Reviews

5,576 reviews
Reviews
1,500 reviews
Reviews
156 reviews
Reviews
124 reviews

Tech Specs

item weight

10.9 kg
item weight
4.46 kg
item weight
3.89 kg
item weight
4.56 kg

viscosity

15W-40
viscosity
5W-40
viscosity
15W-40
viscosity
15W-40

manufacturer part number

550050467-3PK
manufacturer part number
550045390
manufacturer part number
550045349
manufacturer part number
550045135

customer reviews

4.8 4.8 out of 5 stars 1, 394 ratings 4.8 out of 5 stars
customer reviews
4.8 4.8 out of 5 stars 375 ratings 4.8 out of 5 stars
customer reviews
4.9 4.9 out of 5 stars 39 ratings 4.9 out of 5 stars
customer reviews
4.9 4.9 out of 5 stars 31 ratings 4.9 out of 5 stars

model

T6
model
T6
model
T5
model
T4

product dimensions

-
product dimensions
11.43 x 20.83 x 32.16 cm 4.46 kg
product dimensions
11.43 x 20.83 x 32.16 cm 3.89 kg
product dimensions
11.43 x 20.83 x 32.16 cm 4.56 kg

Available On

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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    Shell Rotella

    Shell Rotella T6 Full Synthetic 15W-40 Motor Oil, 1 Gallon (3 Pack)

    Main highlights
    • Protection in extreme operating conditions and climates
    • Meets or exceeds the following industry requirements: API CK-4, CJ-4, CI-4 Plus, CI-4, SN; ACEA E11; JASO DH-2, MA/MA2
    • Meets or exceeds the following OEM specifications: Caterpillar ECF-2/ECF-3; Cummins CES 20086, 20081; Detroit Fluids Specification (DFS) 93K222, 93K218; DTFR 15C100 (prev. MB 228.31); MACK EOS-4.5; MAN M 3775; Ford WSS-M2C171-F1; Allison TES 439; Volvo VDS-4.5
    • Limited warranty valid up to 15 years or 500,000 miles (whichever comes first) if you exclusively use Shell Rotella T6 Full Synthetic Technology heavy-duty engine oil*
    • Improved wear performance versus API CJ-4 technology
    • Full synthetic 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
    • Formulated to deliver increased protection against oxidation and enhanced deposit control/cleanliness
    • For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual
    • Compatibility with exhaust emissions control systems
    • Better cold cranking properties and low-temperature pumpability (compared to conventional and synthetic blend 15W-40 motor oil)
  • 9.6
    2
    Shell Rotella

    Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (5L, Single Pack)

    Main highlights
    • Single 5-litre bottle with ergonomic design for easy handling and pouring
    • Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants (compared to previous formulation)
    • Increased shear stability for better viscosity control and optimal engine oil pressure
    • Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, oil breakdown, and improves low-temperature flow
    • Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from pickup trucks to tractors to semi rigs
    • Enhanced fuel economy capability of 1.5 percent without compromising engine protection or durability (compared to 15W-40 oils)
    • Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster
    • Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles
  • 9.3
    3
    Shell Rotella

    Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (5L, Single Pack)

    Main highlights
    • Synthetic blend 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
    • Single 5-litre bottle with ergonomic design for easy handling and pouring
    • 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
    • Ideal for on-highway fleets, construction, and agricultural machinery, and diesel pickup trucks — including high-power vehicles that require resistance to heat and stress
    • 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

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.