10 Best 5w30 Dexos 1 Gen 3 of 2025

Tested and Reviewed: Top 10 5w30 Dexos 1 Gen 3 deals with expert ratings from 8.1 to a perfect 10

May 2026 Edition

Editor's Choice

9.7

Mobil

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

Editor's bottom line:

“This 5w30 dexos 1 gen 3 is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity.
Utilizes Mobil 1s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
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 extend engine life by working to prevent damaging deposits and sludge buildup
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)

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Picked by 397 people today

9.5

Mobil

Mobil 1 Truck & SUV Full Synthetic Motor Oil 5W-30, 5 Quart

Main Highlights

Mobil 1 Truck & SUV advanced full-synthetic motor oil 5W-30 is specially formulated for hardworking trucks and SUVs that operate in tough conditions like towing and hauling.
Helps protect critical engine parts for up to 10,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
Utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine protection, cleanliness, and proven performance in a 10,000 lb. towing test**
Additives that help prevent deposit formation
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)

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9.5

Mobil

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

Main Highlights

Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
Helps protect critical engine parts for up to 10,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
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
Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)

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9.2

ACDelco

ACDelco GM Original Equipment 10-9329 (19432321) dexos™1 GEN 3 Full Synthetic 5W-30 Motor Oil - 1 qt. | Case of 12

Main Highlights

Viscosity: 5W30
GM Part # 19432321
ACDelco Part # 10-9329
Gen3 is backwards compatible with previous generations of dexos1, ILSAC GF-6 and API SP
High resistance to oxidation, helping to keep the oil from breaking down. GEN3 helps improve oxidation performance, turbocharger protection and engine cleanliness

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9.0

Valvoline

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT

Main Highlights

Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
Delivers 40% stronger wear protection than industry standards to reduce friction and improve fuel economy
Provides 15% better deposit defense vs. industry standards, keeping engines cleaner for smoother performance and longer-lasting protection
Up to 2.5X better heat protection vs. industry standards to fight harmful sludge formation and thermal breakdown
Engineered for excellent low-temperature flow, reducing metal-to-metal contact during cold starts when most engine wear typically occurs
Meets the requirements of: ILSAC GF-7A, API SQ, API SP, API SN with SN PLUS, Resource Conserving and all preceding API and ILSAC gasoline categories. Additional Specifications: Ford WSS-M2C961-A1, Chrysler MS-13340, GM dexos 1 Gen 3

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8.8

ACDelco

ACDelco GM Original Equipment 10-9330 (19432322) dexosTM1 GEN 3 Full Synthetic 5W-30 Motor Oil - 5 qt

Main Highlights

Meets ILSAC GF-5 Plus specifications to fulfill current energy-conserving performance standards
Meets API SN Plus Service Classification requirements to be suitable for use in modern engines
Provides protection against viscosity breakdown for long oil life and drain intervals
Helps protect against the formation of sludge and varnish deposits on engine parts to provide additional engine support even in demanding stop-and-go driving conditions
Premium mineral-based formula that helps protect against high temperature deposits, such as the formation of sludge and varnish deposits, for additional engine protection
Provides engine cleanliness by helping to control thermal breakdown and deposit formation under normal driving conditions
Designed to help provide maximum protection for your vehicles engine
Helps prevent Low Speed Pre-Ignition (LSPI) and timing chain wear
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors

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8.6

Valvoline

Valvoline Extended Protection Full Synthetic Motor Oil SAE 5W-30 5 QT

Main Highlights

Extended Protection Full Synthetic motor oil provides superior protection from deposits, wear, heat and friction the four major causes of engine breakdown
Dual Defense Additive Technology combines an advanced wear-resistant boosters with a fortified detergent system for cleaner, longer-lasting performance
Delivers 60% stronger wear protection than industry standards to help reduce friction for better performance and longer engine life
Offers 40% better deposit defense vs. industry standards to keep engines cleaner and improve fuel economy
Provides 20X better heat protection than industry standards for exceptional durability under extreme conditions
Meets or exceeds all requirements of: ILSAC GF-7A, API SQ, API SP, API SN with SN PLUS, Resource Conserving and all preceding API and ILSAC gasoline categories. Additional Specifications: Ford WSS-M2C961-A1, Chrysler MS-13340, GM dexos1 Gen 3

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8.3

Castrol

Castrol GTX Full Synthetic 5W-30 Motor Oil, 5 Quarts

Main Highlights

6X better wear protection on critical engine parts than industry standards**
1.3X better sludge protection than industry standards*
3X Stronger against viscosity breakdown than leading full synthetic^
Protection for 10,000 miles between oil changes
*As measured in Sequence VH sludge test vs. API SP limits
**As measured in the latest Sequence IVA test
^ Based on Kurt Orbahn test in 5W-30 grade
Meets or exceeds the following specifications: API SQ/SP/SN PLUS/SN | ILSAC GF-7
GM dexos1 Gen 3 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A1

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8.1

Mobil

Mobil 1 Extended Performance Full Synthetic Motor Oil 5W-30, 6-pack of 1 quarts

Main Highlights

Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
Utilizes Mobil 1s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
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 extend engine life by working to prevent damaging deposits and sludge buildup
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)

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8.1

ACDelco

ACDelco GM Original Equipment 10-9329 (19432321) dexos1� GEN 3 Full Synthetic 5W-30 Motor Oil - 1 qt (Pack of 12)

Main Highlights

Designed to provide optimal protection for your vehicle's engine
Provides engine cleanliness by helping to control thermal breakdown and deposit formation under normal driving conditions
Gen3 is backwards compatible with previous generations of dexos1, ILSAC GF-6 and API SP
High resistance to oxidation, helping to keep the oil from breaking down. GEN3 helps improve oxidation performance, turbocharger protection and engine cleanliness
GEN3 improved compatibility over previous formula with exhaust particulate filters
Helps keep engines cleaner by resisting varnish and sludge that can affect performance. GEN3 new stochastic pre-ignition (SPI) tests. Upgraded over previous formula performance limits for deposit and sludge tests
Viscosity(s): 0W20, 5W30
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

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Our Best Overall Choice

Best Choice

9.7

Mobil

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

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

Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity.
Utilizes Mobil 1s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
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 extend engine life by working to prevent damaging deposits and sludge buildup
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)

Show Price

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