10 Best Rotella T6 5w40 Motor Oil of 2026

Tested and Reviewed: Top 10 Rotella T6 5w40 Motor Oil deals with expert ratings from 8.1 to a perfect 10

June 2026 Edition

Editor's Choice

9.7

Castrol

Castrol Edge Euro 5W-40 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Editor's bottom line:

“This rotella t6 5w40 motor oil is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

1.2X Better viscosity control to help engines run better for longer*
2X Better engine cleanliness to help maximize engine performance*
*As measured in DV6 test vs. test limit
Approved and licensed specifications: ACEA A3/B4 and API SP
BMW Longlife-01
MB-Approval MB 229.5
Porsche A40
Renault RN0700 / RN0710
VW 502 00 / 505 00
Meets engine test requirements of Chrysler MS 12991

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Picked by 397 people today

9.5

Shell Rotella

Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil, 1 Gallon

Main Highlights

Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
Improved wear performance with significantly increased level of protection against harmful engine wear (compared to previous generation API CJ-4 engine oils)
Enhanced fuel economy capability of 1.5% without compromising engine protection or durability (compared to 15W-40 oils)
Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants
Resists breakdown by heat to provide continuous protection throughout the service interval, and also provides improved low-temperature flow compared to conventional 15W-40 oils
Advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices
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*
Meets or exceeds the following industry specifications: API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4; ACEA E11; JASO DH-2, MA, MA2
Meets or exceeds the following OEM specifications: Cummins CES 20086, 2008; Volvo VDS-4.5, VDS-4; MACK EOS-4.5; Detroit Fluid Specification (DFS) 93K222, 93K218; Caterpillar ECF-2, ECF-3; MAN M3575; Allison TES-439; DTFR 15C100 (prev. MB 228.31); Ford WSS-M2C171-F1
For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owners manual

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9.5

Shell Rotella

Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil, 1 Gallon (3 Pack)

Main Highlights

Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
Improved wear performance with significantly increased level of protection against harmful engine wear (compared to previous generation API CJ-4 engine oils)
Enhanced fuel economy capability of 1.5% without compromising engine protection or durability (compared to 15W-40 oils)
Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants
Resists breakdown by heat to provide continuous protection throughout the service interval, and also provides improved low-temperature flow compared to conventional 15W-40 oils
Advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices
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*
Meets or exceeds the following industry specifications: API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4; ACEA E11; JASO DH-2, MA, MA2
Meets or exceeds the following OEM specifications: Cummins CES 20086, 2008; Volvo VDS-4.5, VDS-4; MACK EOS-4.5; Detroit Fluid Specification (DFS) 93K222, 93K218; Caterpillar ECF-2, ECF-3; MAN M3575; Allison TES-439; DTFR 15C100 (prev. MB 228.31); Ford WSS-M2C171-F1
For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owners manual

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9.2

Shell Rotella

Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil, 1 Quart (6 Pack)

Main Highlights

Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
Improved wear performance with significantly increased level of protection against harmful engine wear (compared to previous generation API CJ-4 engine oils)
Enhanced fuel economy capability of 1.5% without compromising engine protection or durability (compared to 15W-40 oils)
Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants
Resists breakdown by heat to provide continuous protection throughout the service interval, and also provides improved low-temperature flow compared to conventional 15W-40 oils
Advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices
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*
Meets or exceeds the following industry specifications: API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4; ACEA E11; JASO DH-2, MA, MA2
Meets or exceeds the following OEM specifications: Cummins CES 20086, 2008; Volvo VDS-4.5, VDS-4; MACK EOS-4.5; Detroit Fluid Specification (DFS) 93K222, 93K218; Caterpillar ECF-2, ECF-3; MAN M3575; Allison TES-439; DTFR 15C100 (prev. MB 228.31); Ford WSS-M2C171-F1
For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owners manual

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9.0

Valvoline

Valvoline European Vehicle Full Synthetic SAE 5W-40 Motor Oil 5 QT

Main Highlights

Advanced protection for European gasoline and diesel vehicles against the four main causes of engine breakdown: wear friction heat and deposits
Formulated with top-quality anti-wear additives that go beyond industry and OEM standards in European vehicles
Premium antioxidants and cleaning detergents combine to safeguard against damaging deposits
Exceptional high/low temperature protection defends your engine no matter the climate or driving conditions
Meets or exceeds all requirements of API SP, ACEA A3/B3, A3/B4, MB-Approval 229.5, MB-Approval 229.3, MB-Approval 226.5, Approved under VW Standard 502.00/505.00, VW 505.01, BMW LL-01, BMW LL-14FE+, Porsche A40, Renault RN0700 & RN0710, PSA B71 2296, Chrysler MS-12633, Chrysler MS-10725
American made and formulated, from the Original Motor Oil brand trusted for more than 150 years

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8.8

Motul

MOTUL 8100 X-Cess Gen 2 SAE 5W40 Full Synthetic Motor Engine Oil 5 Liter Bottle

Main Highlights

Formal OEM approvals across the European performance car landscape: Motul 8100 X-Cess Gen2 5W-40 carries BMW Longlife-01, Mercedes-Benz MB-Approval 229.5 and 226.5, Porsche A40, Volkswagen 502 00 and 505 00, Renault RN0710 and RN0700, FIAT 9.55535-H2 M2 N2 Z2, and GM-Opel LL B-025. One oil covers a multi-brand European garage. Fits out-of-warranty BMW M3 (E46, E92, F80), Porsche 911 (996, 997, 991), Mercedes-Benz AMG (W204 C63, W212 E63), and Audi S4 platforms.
Thermal stability engineered for turbocharged and direct-injection engines: HTHS viscosity of 3.8 mPa.s at 150 degrees Celsius holds a robust oil film under extreme load. Viscosity index of 186 and flash point of 228 degrees Celsius (442 Fahrenheit) keep the formulation stable during track-day heat soak and sustained high-RPM highway operation. Built for the N54, N55, B58, M156, and 3.0T TFSI engine families.
Extended drain interval support through high detergent and dispersant power: Total Base Number of 10.2 mg KOH per gram resists soot and sludge accumulation, supporting the longer oil change intervals recommended by European manufacturers. Catalytic converter compatibility is preserved, protecting the emissions system and preventing costly exhaust component failures over the life of the vehicle.
Cold start protection to minus 49 Fahrenheit pour point: Rapid oil circulation on a freezing winter morning minimizes wear on the valvetrain during the most damaging operating phase of any engine. Critical for BMW VANOS and Valvetronic systems, Porsche VarioCam, and Mercedes-Benz timing chain assemblies that depend on instant pressure at first turnover.
North American BMW gasoline engines and full-SAPS applications: Motul 8100 X-Cess Gen2 is the BMW Longlife-01 product for pre-2019 BMWs sold outside the European Union, not the Longlife-04 formulation (which is Motul X-Clean Gen2). Not suitable for modern diesel engines fitted with a diesel particulate filter. For DPF diesels, use Motul X-Clean Gen2. The 5 Liter jug supports a standard European oil service interval with headroom for top-off.

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8.6

Pennzoil

Pennzoil Platinum Euro Full Synthetic 5W-40 Motor Oil, 1 Quart (6 Pack)

Main Highlights

Full synthetic 5W-40 motor oil that is made with natural gas and designed to maximize engine protection
Formulated for modern light-duty diesel and high-performance engines in European vehicles, including Fiat, Mercedes-Benz, Porsche, Renault, and VW
Helps extend engine life and protects for up to 15 years or 500,000 miles, whichever comes first, guaranteed*
Delivers faster low-temperature oil flow and protection in extreme heat
Protects horsepower and keeps engine closer to factory clean (based on Sequence VH and M-111 sludge test using SAE 0W-40)

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Best Value

8.3

Save 6%

Castrol

Castrol Power1 4T 5W-40 Full Synthetic Motorcycle Oil, 1 Quart, Pack of 6

6% Off

Main Highlights

Formulated with Trizone technology to protect all 3 critical zones: engine, clutch and gearbox
Race derived technology for maximum engine acceleration
Extreme high temperature air-cooled performance and water-cooled engine performance
Excellent shear stability to prevent viscosity breakdown
Exceeds API SL and JASO MA-2

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8.1

Castrol

Castrol Power 1 Racing 4T Motorcycle Oil - 5W40-1qt. 06113

Main Highlights

Race-derived technology for maximum engine acceleration
Extreme high temperature air-cooled performance and water-cooled engine performance
Excellent shear stability to prevent viscosity breakdown
Fit Type: Vehicle Specific

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8.1

Save 5%

Liqui Moly

Liqui Moly 2331 Leichtlauf High Tech 5W-40 Engine Oil - 1 Liter

5% Off

Main Highlights

For best performance, follow the manufacturer's recommendations in your vehicle owners manual.
Rapid oil delivery at low temperatures, high lubrication reliability at high and low temperatures
Long engine service life due to high level of protection against wear, mixable and compatible with commercially-available engine oils
Outstanding engine cleanliness, tested with catalytic converters and performance proved with turbochargers
Saves fuel and reduces pollutant emission; Optimum oil pressure at all engine speeds, high shear and ageing stability
Approvals from vehicle manufacturers for Leichtlauf High Tech 5W-40 include BMW Longlife-01, MB-Approval 229.5, Porsche A40, Renault RN 0700, 0710, VW 502 00/505 00

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Our Best Overall Choice

Best Choice

9.7

Castrol

Castrol Edge Euro 5W-40 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

1.2X Better viscosity control to help engines run better for longer*
2X Better engine cleanliness to help maximize engine performance*
*As measured in DV6 test vs. test limit
Approved and licensed specifications: ACEA A3/B4 and API SP
BMW Longlife-01
MB-Approval MB 229.5
Porsche A40
Renault RN0700 / RN0710
VW 502 00 / 505 00
Meets engine test requirements of Chrysler MS 12991

Show Price

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