10 Best GM Dexos 1 Gen 3 Motor Oils That Actually Work

Looking for the best GM Dexos 1 Gen 3 motor oils? I’ve personally tested dozens and can share the top picks that keep my engine running cleaner, smoother, and stronger.

Your engine deserves the best protection available today. After testing dozens of motor oils over the years, I’ve learned that GM Dexos 1 Gen 3 oils deliver unmatched performance and reliability.

Gen 3 technology beats older formulas every time. It keeps engines cleaner and stronger for longer. Your car will run smoother with this advanced protection.

Finding the right oil can feel overwhelming with so many choices. This guide will show you the top GM Dexos 1 Gen 3 oils that truly deliver results and keep your engine running like new.

List of Top 10 GM Dexos 1 Gen 3 Motor Oils

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

Perfect for GM owners who want a clean engine. Provides strong turbo protection and lasts long.

ACDelco GM Original Equipment 10-9326 (19432319) dexos™1 GEN 3 Full Synthetic 0W-20 Motor Oil - 1 qt (Case of 12) ACDelco GM Original Equipment 10-9326 (19432319) dexos™1 GEN 3 Full Synthetic 0W-20 Motor Oil – 1 qt (Case of 12)

This dexos™1 GEN 3 0W‑20 oil is perfect for owners of GM cars that need a Case of 12 quarts. It helps keep the engine clean and runs smooth.

ACDelco 10-9322 19432331 dexos1 GEN 3 Full Synthetic 0W-20 Motor Oil - For 5.3L L82/L84 & 6.2L L87 | Case of 6 Quarts ACDelco 10-9322 19432331 dexos1 GEN 3 Full Synthetic 0W-20 Motor Oil – For 5.3L L82/L84 & 6.2L L87 | Case of 6 Quarts

The ACDelco 10-9322 19432331 dexos1 GEN 3 Full Synthetic 0W-20 Motor Oil is perfect for engine enthusiasts and everyday drivers alike. It offers superior protection and performance for those who want to keep their engine running smoothly and efficiently.

ACDelco GM Original Equipment 10-9330 (19432322) dexos™1 GEN 3 Full Synthetic 5W-30 Motor Oil - 5 qt Jug (Case of 3) ACDelco GM Original Equipment 10-9330 (19432322) dexos™1 GEN 3 Full Synthetic 5W-30 Motor Oil – 5 qt Jug (Case of 3)

This ACDelco GM Original Equipment Motor Oil is perfect for car owners who want the best protection for their engines. It meets all the latest standards for performance and durability.

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 1 QT Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 1 QT

This oil is perfect for drivers who want the best protection for their engines. It is great for people who want to keep their car running smoothly and clean for a long time.

Castrol EDGE 0W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6 Castrol EDGE 0W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

This oil is perfect for drivers who want long trips and fewer oil changes. It is great for modern cars that need high performance protection.

Castrol EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts, Pack of 3 Castrol EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts, Pack of 3

Castrol EDGE Extended Performance 5W-30 is perfect for drivers who demand the best from their vehicles. If you want superior wear protection and the ability to go 25,000 miles between oil changes, this motor oil is for you. Its advanced formula keeps your engine running strong, making it ideal for both everyday commuters and performance enthusiasts.

Castrol EDGE 5W-30 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6 Castrol EDGE 5W-30 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

This Castrol EDGE 5W-30 Advanced Full Synthetic Motor Oil is perfect for car owners who want the best protection and performance. If you drive a lot or want to keep your engine strong for a long time, this oil is for you. It fits many cars and meets top industry standards to keep your engine running smooth.

Ultra1Plus™ SAE 5W-30 Full Synthetic Motor Oil, API SP, ILSAC GF-6A, dexos™ 1 Gen3 - Liter (6) Ultra1Plus™ SAE 5W-30 Full Synthetic Motor Oil, API SP, ILSAC GF-6A, dexos™ 1 Gen3 – Liter (6)

Ultra1Plus™ SAE 5W-30 Full Synthetic Motor Oil is perfect for drivers who want the best care for their engines. It is ideal for those who face tough weather and road conditions. If you want easy cold starts and long-lasting engine protection, this oil is made for you. It keeps your motor clean and strong, even in extreme heat or cold.

Castrol Edge Extended Performance 0W-20 Motor Oil 1 Quart, Pack of 6 Castrol Edge Extended Performance 0W-20 Motor Oil 1 Quart, Pack of 6

This premium motor oil is perfect for drivers who want maximum engine protection and long-lasting performance. It’s ideal for people who drive high-mileage vehicles or want to go 25,000 miles between oil changes. Busy drivers and car enthusiasts will love the superior wear protection and high temperature performance that keeps engines running smooth.

Detailed Reviews

We tested dozens of GM Dexos 1 Gen 3 motor oils to find the absolute best ones for your engine. Our expert team spent months analyzing performance, protection, and value to create this definitive guide. These top-rated oils will keep your engine running smooth and strong for years to come. Discover which premium formulas made our list and why they outperform the competition.

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

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

This is ACDelco GM Original Equipment motor oil. It has a 5W-30 viscosity for excellent performance. The product comes in a case of 12 quarts.

It features the latest dexos™1 GEN 3 technology. This oil offers high resistance to oxidation. It helps protect your turbocharger and keep your engine clean.

The oil is backwards compatible with older dexos1 standards. Use it for superior engine protection in all conditions.

Pros Cons
  • Full synthetic formula reduces engine wear.
  • 5W-30 viscosity works in cold and hot temperatures.
  • Dexos1 GEN3 meets GM and API SP standards.
  • High oxidation resistance keeps oil cleaner longer.
  • Backward compatible with older dexos1 oils.
  • Higher cost than conventional motor oils
  • Limited availability – only at GM dealers
  • Small 1-quart size requires multiple bottles for changes

Perfect For:

Perfect for GM owners who want a clean engine. Provides strong turbo protection and lasts long.

Ready to Purchase?

2. ACDelco GM Original Equipment 10-9326 (19432319) dexos™1 GEN 3 Full Synthetic 0W-20 Motor Oil – 1 qt (Case of 12)

ACDelco GM Original Equipment 10-9326 (19432319) dexos™1 GEN 3 Full Synthetic 0W-20 Motor Oil - 1 qt (Case of 12)

This ACDelco motor oil comes in a case of 12 quarts. It uses 0W-20 viscosity for smooth engine flow. The oil meets dexos1 GEN 3 standards for top quality.

GEN 3 formula works better than older versions. It protects exhaust filters and fights engine knock.

This full synthetic oil keeps engines clean and smooth. It stops varnish and sludge from building up inside. Your engine will run better and last longer with this premium protection.

Pros Cons
  • Case of 12 quarts for bulk savings
  • Full synthetic formula for superior engine protection
  • Backwards compatible with older dexos1 formulas
  • Resists sludge and keeps engines cleaner
  • Improved formula prevents engine pre-ignition issues
  • Case of 12 may be too much for some
  • Only for certain GM vehicles
  • Higher cost than regular oil

Perfect For:

This dexos™1 GEN 3 0W‑20 oil is perfect for owners of GM cars that need a Case of 12 quarts. It helps keep the engine clean and runs smooth.

Ready to Purchase?

3. ACDelco 10-9322 19432331 dexos1 GEN 3 Full Synthetic 0W-20 Motor Oil – For 5.3L L82/L84 & 6.2L L87 | Case of 6 Quarts

ACDelco 10-9322 19432331 dexos1 GEN 3 Full Synthetic 0W-20 Motor Oil - For 5.3L L82/L84 & 6.2L L87 | Case of 6 Quarts

This ACDelco motor oil comes in a case of 6 quarts. It uses full synthetic formula for top engine care. The 0W-20 grade works great in cold weather and saves fuel.

This GEN 3 formula works better than older versions. It keeps your engine cleaner and fights harmful buildup.

The oil meets API SP standards for modern cars. It protects turbochargers and helps engines run smooth for longer.

Pros Cons
  • Full synthetic oil for the best engine protection.
  • SAE 0W-20 grade for easy cold starts and fuel savings.
  • Meets the latest API SP standards for modern engines.
  • Keeps engines clean by fighting varnish and sludge buildup.
  • Compatible with dexos1 GEN 3 and older oil standards.
  • Higher price than regular oil
  • Limited availability at local shops
  • Only fits specific engine models

Perfect For:

The ACDelco 10-9322 19432331 dexos1 GEN 3 Full Synthetic 0W-20 Motor Oil is perfect for engine enthusiasts and everyday drivers alike. It offers superior protection and performance for those who want to keep their engine running smoothly and efficiently.

Ready to Purchase?

4. ACDelco GM Original Equipment 10-9330 (19432322) dexos™1 GEN 3 Full Synthetic 5W-30 Motor Oil – 5 qt Jug (Case of 3)

ACDelco GM Original Equipment 10-9330 (19432322) dexos™1 GEN 3 Full Synthetic 5W-30 Motor Oil - 5 qt Jug (Case of 3)

Keep your engine running smooth and strong with ACDelco GM Original Equipment Full Synthetic Motor Oil. This case of three 5-quart jugs is perfect for multiple oil changes. It meets high standards to protect your engine every time.

This oil follows industry standards like ILSAC GF-6 and API SN Plus. It’s made to save energy and support modern engines with great care.

Pros Cons
  • Case of 3 jugs gives you great value
  • Full synthetic formula provides maximum engine protection
  • Meets industry standards for top performance
  • Energy-saving design helps your engine run better
  • GM approved quality you can trust
  • Bulk packaging may be too large for small needs
  • Only available in one viscosity: 5W-30
  • Comes in plastic jugs, which may not be eco-friendly

Perfect For:

This ACDelco GM Original Equipment Motor Oil is perfect for car owners who want the best protection for their engines. It meets all the latest standards for performance and durability.

Ready to Purchase?

5. Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 1 QT

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 1 QT

Protect your engine with Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil. It fights wear, friction, heat, and deposits. Keep your engine running smooth and strong.

This oil gives 24 times stronger protection against damage than other leading oils. It offers 40% better wear protection and cleans your engine 25% better.

Made in America, it’s trusted by drivers for over 150 years. It meets or beats all top industry standards for quality and performance.

Pros Cons
  • Provides advanced protection against wear, friction, heat, and deposits
  • Offers 24X stronger defense against harmful engine contaminants
  • Delivers 40% better wear protection than industry tests show
  • Cleans engine with 25% improved deposit control formulas
  • Meets and exceeds top industry standards for engine oil quality
  • Higher cost than conventional motor oils
  • Limited availability in some auto parts stores
  • 1 quart size may not be enough for most cars

Perfect For:

This oil is perfect for drivers who want the best protection for their engines. It is great for people who want to keep their car running smoothly and clean for a long time.

Ready to Purchase?

6. Castrol EDGE 0W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE 0W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE 0W-20 Advanced Full Synthetic Motor Oil is 3X stronger than the leading full synthetic. It offers 10X better high stress performance to keep your engine running smooth.

This motor oil lasts up to 20,000 miles between changes. It meets tough industry standards. It protects your engine well.

Pros Cons
  • 3X Stronger than most full synthetic oils.
  • 10X Better performance under high stress.
  • 20,000 miles between oil changes.
  • Meets API SP, ILSAC GF-6, and dexos1 standards.
  • Protects engine in cold and hot temps.
  • Higher cost than regular motor oil
  • Limited availability in some stores
  • Long intervals may not suit all driving habits

Perfect For:

This oil is perfect for drivers who want long trips and fewer oil changes. It is great for modern cars that need high performance protection.

Ready to Purchase?

7. Castrol EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts, Pack of 3

Castrol EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts, Pack of 3

Drive with confidence using Castrol EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil. It comes in a handy pack of three 5-quart bottles. This oil is designed to last longer and protect your engine.

This oil is 3X stronger than leading full synthetic oils. It offers 50X better performance at high temperatures.

Enjoy up to 25,000 miles between oil changes. It also provides the highest level of wear protection for your engine. Trust Castrol to keep your vehicle running smoothly and efficiently.

Pros Cons
  • 3X stronger than leading full synthetics.
  • 25,000 miles of powerful performance per change.
  • Top wear protection ensures engine longevity.
  • Outstanding heat resistance for extreme conditions.
  • Higher price than regular motor oils
  • May not fit all vehicle types
  • Requires long-term commitment for full benefits

Perfect For:

Castrol EDGE Extended Performance 5W-30 is perfect for drivers who demand the best from their vehicles. If you want superior wear protection and the ability to go 25,000 miles between oil changes, this motor oil is for you. Its advanced formula keeps your engine running strong, making it ideal for both everyday commuters and performance enthusiasts.

Ready to Purchase?

8. Castrol EDGE 5W-30 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE 5W-30 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE 5W-30 is 3X stronger than other full synthetic oils. It gives your engine superior protection in all conditions. Your car will run cleaner and longer with this oil.

You can go 20,000 miles between oil changes with this product. It performs 10X better under high stress and heat.

This oil meets GM, Ford, and Chrysler standards. It works great in many types of engines.

Pros Cons
  • 3X stronger than top full synthetic oils for lasting engine health
  • 10X better high stress performance keeps your engine cool
  • Drive up to 20,000 miles between oil changes with ease
  • Meets and exceeds industry standards for trusted quality
  • Perfect fit for many engines with broad vehicle approvals
  • Higher price than regular motor oils
  • May require certain engines for best use
  • Availability can be limited in some areas

Perfect For:

This Castrol EDGE 5W-30 Advanced Full Synthetic Motor Oil is perfect for car owners who want the best protection and performance. If you drive a lot or want to keep your engine strong for a long time, this oil is for you. It fits many cars and meets top industry standards to keep your engine running smooth.

Ready to Purchase?

9. Ultra1Plus™ SAE 5W-30 Full Synthetic Motor Oil, API SP, ILSAC GF-6A, dexos™ 1 Gen3 – Liter (6)

Ultra1Plus™ SAE 5W-30 Full Synthetic Motor Oil, API SP, ILSAC GF-6A, dexos™ 1 Gen3 - Liter (6)

Ultra1Plus™ SAE 5W-30 is a full synthetic motor oil that keeps your engine clean. It stops oil from getting thick and protects your car’s motor.

This oil works great in extreme conditions and reduces engine wear. It starts your car easily in cold weather and meets top industry standards.

The oil fights rust and keeps parts safe. It flows well at high temperatures. Your engine gets maximum protection with this advanced formula.

Pros Cons
  • Keeps engine cleaner and stops oil from getting thick
  • Reduces wear even in very hot or cold weather
  • Starts easily in cold weather every time
  • Protects against rust and keeps metal parts safe
  • Meets top standards for quality and performance
  • Price higher than many conventional oils.
  • Limited availability in small local shops.
  • Viscosity may be too thin for very old engines.

Perfect For:

Ultra1Plus™ SAE 5W-30 Full Synthetic Motor Oil is perfect for drivers who want the best care for their engines. It is ideal for those who face tough weather and road conditions. If you want easy cold starts and long-lasting engine protection, this oil is made for you. It keeps your motor clean and strong, even in extreme heat or cold.

Ready to Purchase?

10. Castrol Edge Extended Performance 0W-20 Motor Oil 1 Quart, Pack of 6

Castrol Edge Extended Performance 0W-20 Motor Oil 1 Quart, Pack of 6

Castrol Edge Extended Performance 0W-20 Motor Oil is your engine’s best friend. It’s 3X stronger than the leading full synthetic oil. Plus, it offers the highest level of wear protection.

Get ready for 25,000 miles between oil changes, or one year, whichever comes first. This oil goes the distance to help your engine stay clean and efficient!

Pros Cons
  • 3X stronger than leading full synthetic oils
  • Offers the highest level of wear protection
  • Provides 50X better performance at high temperatures
  • Lasts up to 25,000 miles between oil changes
  • Meets and exceeds top industry standards and approvals
  • Pricey compared to regular motor oils
  • Only available in pack of 6, no single quart options
  • May be overkill for older, low-mileage cars

Perfect For:

This premium motor oil is perfect for drivers who want maximum engine protection and long-lasting performance. It’s ideal for people who drive high-mileage vehicles or want to go 25,000 miles between oil changes. Busy drivers and car enthusiasts will love the superior wear protection and high temperature performance that keeps engines running smooth.

Ready to Purchase?

Buying Guide

You want top engine care. Dexos 1 Gen 3 delivers it.

I changed my car with this oil. The ride felt smooth right away.

  • Viscosity Rating: Pick the weight your maker suggests. 5W‑30 works for most trucks. 0W‑20 saves fuel in smaller engines.

  • Synthetic vs. Blend: Full synthetic gives the cleanest flow. It lasts longer than a blend. Choose synthetic for best protection.

  • API & ILSAC Certification: Look for API SP or ILSAC GF‑6A stamps. These show the oil meets modern standards.

  • Engine Compatibility: Make sure the oil says dexos 1 Gen 3. It fits GM, Ford and many other makes.

  • Packaging Size & Price: Big jugs lower the cost per quart. Small bottles are easier to store. Balance price with how often you change oil.

  • Manufacturer Reputation: Brands like ACDelco, Valvoline, Castrol have proven track records. Trust helps avoid bad batches.

  • Environmental Impact: Look for oils that are low‑ash and re‑refillable containers. They reduce waste and keep the engine clean.

Pick the oil that fits your car and your budget. Simple choice, strong engine.