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Best motor oils - October 2025

Last Updated - October 24, 2025

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Shell Rotella

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

Shell Rotella

$64.98

More Details
Main highlights
- 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
- Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants
- 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
- 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 with significantly increased level of protection against harmful engine wear (compared to previous generation API CJ-4 engine oils)
- Full synthetic 5W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
- For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual
- Enhanced fuel economy capability of 1.5% without compromising engine protection or durability (compared to 15W-40 oils)
- Advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices
$64.98
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Pennzoil

Pennzoil Ultra Platinum Full Synthetic 0W-40 Motor Oil, 1 Quart (6 Pack)

Pennzoil

$45.00

More Details
Main highlights
- Provides unsurpassed wear protection for your engine (based on Sequence IVA wear test using SAE 5W-30)
- Provides better fuel economy (based on the latest industry standard)
- Pennzoil Ultra Platinum comes with a 20-year, 750,000-mile warranty** to protect your engine and give you peace of mind to drive every mile as hard as you can
- Outstanding performance in extreme temperatures
- Our most advanced full synthetic 0W-40 engine oil, designed for unbeatable engine protection*
- Meets or exceeds the following OEM requirements: Chrysler MS-A0921 (SRT)
- Made with natural gas
- For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual
- Exceeds the requirements of the following industry specifications: API SP
- Designed for high-performance engines, it helps protect engines from loss of power
$45.00
3
16% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Mobil
16% Off

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart

Mobil

$24.97

$29.97
(16% Off)

More Details
Main highlights
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Mobil 1 Advanced Fuel Economy full-synthetic motor oil 0W-20 is low-viscosity to help improve fuel economy.*
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean
- Helps protect critical engine parts for up to 10,000 miles between oil changesm,** controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Helps extend engine life by working to prevent damaging deposits and sludge buildup
$24.97
$29.97 (16% Off)
4
16% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Mobil
16% Off

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 5 Quart

Mobil

$24.97

$29.97
(16% Off)

More Details
Main highlights
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
- Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Helps protect critical engine parts for up to 10,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
$24.97
$29.97 (16% Off)
5
Best Value
25% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Valvoline
25% Off

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT

Valvoline

$26.97

$35.99
(25% Off)

More Details
Main highlights
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN, GM dexos 1 Gen 3
- Full synthetic 0W-20 formula offers 24X stronger protection against water intrusion than the industry-leading synthetic motor oil — it fights rust, corrosion, and other threats to help maximize vehicle life
- American made and formulated, from the Original Motor Oil brand trusted for more than 150 years
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- 40% better wear protection vs. industry standards as tested in the Sequence IVB engine test
- 25% better deposit protection with superior engine cleaning detergents as tested in the GMOD engine test
$26.97
$35.99 (25% Off)