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10 Best Mobil 1 5w 20 Full Synthetic Motor Oil of 2025

Tested and Reviewed: Top 10 Mobil 1 5w 20 Full Synthetic Motor Oil deals with expert ratings from 8.1 to a perfect 10

October 2025 Edition

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1

Editor's Choice

9.7

Save 39%

Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 6-Pack of 1 quarts

Mobil

Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 6-Pack of 1 quarts

39% OffFree Shipping

Editor's bottom line:

“This mobil 1 5w 20 full synthetic motor oil is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Mobil 1 advanced full synthetic motor oil 5W-20 helps to protect your engine from the five factors that can damage engines over time
Helps to 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
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 -30 degrees F)

Picked by 188 people today

2

9.5

Save 23%

Mobil Full Synthetic Motor Oil 5W-20, 1 Quart

Mobil

Mobil Full Synthetic Motor Oil 5W-20, 1 Quart

23% OffFree Shipping

Main Highlights

Guaranteed protection for up to 7,500 miles between oil changes
Provides excellent resistance to oil breakdown for long-lasting protection
Balanced formulation helps prevent engine deposits and sludge buildup

3

9.5

Save 27%

Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (1-Quart, Single Pack) (Pack of 2)

Pennzoil

Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (1-Quart, Single Pack) (Pack of 2)

Main Highlights

The information below is per-pack only
Full synthetic 5W-20 engine oil made with natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology
No other leading motor oil provides better wear protection for your engine (Based on Sequence IVA wear test using SAE 5W-30)
Helps protect engines from loss of power and provides better fuel economydrive on average an extra 550 miles per year (versus a dirty engine)
Keeps pistons dramatically cleaner than required by the toughest industry standards (Based on ILSAC GF-6 and Sequence IIIH piston deposit test using SAE 5W-30)
Delivers unsurpassed sludge protection to help keep high-performance and luxury car engines as close as possible to factory clean (Based on Sequence VH Sludge Test using SAE 5W-20)
Formulated to provide faster low-temperature oil flow and protection in extreme heat
Single 1-quart bottle
Pennzoil is the first motor oil made with natural gas, not crudePurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that's crystal clear and contains fewer impurities than other traditional and synthetic motor oils
Suitable for all car, SUV, light van, truck gasoline and turbocharged engines; under all driving conditions.

4

9.2

Save 7%

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

Mobil

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

7% OffFree Shipping

Main Highlights

Mobil 1 advanced full-synthetic motor oil 5W-20 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
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 -30 degrees F)

5

9.0

Save 8%

Mobil 1-123837 Extended Performance High Mileage 0W-20; 5QT, Gray

Mobil

Mobil 1-123837 Extended Performance High Mileage 0W-20; 5QT, Gray

8% OffFree Shipping

Main Highlights

Mobil 1 Extended Performance High Mileage full-synthetic motor oil 0W-20 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.*
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
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
Helps extend engine life by working to prevent damaging deposits and sludge buildup

6

8.8

Mobil Full Synthetic Motor Oil 5W-20, 1 Quart (6-pack)

Mobil

Mobil Full Synthetic Motor Oil 5W-20, 1 Quart (6-pack)

Main Highlights

Mobil Full Synthetic 5W-20 motor oil is formulated for vehicles upgrading from conventional oil or synthetic blend, or requiring full synthetic motor oil
Provides guaranteed protection that's 1.5X longer than our conventional and synthetic blend oils, up to 7,500 miles between oil changes*
Helps to prevent sludge and deposit formation, to help reduce engine wear, and has balanced additive system formulation
Provides excellent resistance to oil breakdown, for proven long-lasting protection, and maintains oil viscosity at high operating temperatures
Recommended for all types of gasoline-powered vehicles, including those with turbocharged engines, and meets API SP resource-conserving

7

8.6

Mobil Full Synthetic High Mileage Motor Oil 5W-20, 1 Quart (6-pack)

Mobil

Mobil Full Synthetic High Mileage Motor Oil 5W-20, 1 Quart (6-pack)

Main Highlights

Mobil Full Synthetic High Mileage 5W-20 motor oil is designed for vehicles with over 75,000 miles, upgrading from a conventional or synthetic blend, or requiring full synthetic motor oil
Provides guaranteed protection that's 1.5X longer than our conventional and synthetic blend oils, up to 7,500 miles between oil changes*
Helps to prevent oil leaks, sludge, and deposit formation to help reduce engine wear with a balanced additive system formulation and extra seal conditioner
Provides excellent resistance to oil breakdown, for proven long-lasting protection, and maintains oil viscosity at high operating temperatures
Recommended for all types of gasoline-powered vehicles, including those with turbocharged engines, and meets API SP resource-conserving

8

8.3

Mobil 1 Extended Performance Full Synthetic Motor Oil 5W-20, 1 Quart (6-pack)

Mobil

Mobil 1 Extended Performance Full Synthetic Motor Oil 5W-20, 1 Quart (6-pack)

Main Highlights

5W20
1 Quart Bottles
Set of 6

9

8.1

Mobil 1 Extended Performance High Mileage Full Synthetic Motor Oil 5W-20, 1 Quart (6-pack)

Mobil

Mobil 1 Extended Performance High Mileage Full Synthetic Motor Oil 5W-20, 1 Quart (6-pack)

Main Highlights

Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-20 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.*
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
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
Helps extend engine life by working to prevent damaging deposits and sludge buildup

10

8.1

Save 8%

Mobil 1-123837 Extended Performance High Mileage 0W-20; 5QT, Gray (Pack of 2)

Mobil

Mobil 1-123837 Extended Performance High Mileage 0W-20; 5QT, Gray (Pack of 2)

Main Highlights

The information below is per-pack only
Mobil 1 Extended Performance High Mileage full-synthetic motor oil 0W-20 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.*
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
Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
Helps extend engine life by working to prevent damaging deposits and sludge buildup

Our Best Overall Choice

9.7

Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 6-Pack of 1 quarts

Mobil

Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 6-Pack of 1 quarts

39% OffFree Shipping

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 advanced full synthetic motor oil 5W-20 helps to protect your engine from the five factors that can damage engines over time
Helps to 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
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 -30 degrees F)

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

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Valvoline Restore & Protect Full Synthetic 5W-20 Motor Oil 1 QT

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Mobil 1 Truck & SUV Oil 5w20 1 Quart

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Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 6-pack of 1 quarts

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Mobil 1 Extended Performance Full Synthetic Motor Oil 0W-20, 1 Quart (6-pack)

Mobil 1 Extended Performance Full Synthetic Motor Oil 0W-20, 1 Quart (6-pack)

Mobil 1-123837 Extended Performance High Mileage 0W-20; 5QT, Gray (Pack of 2)

Mobil 1-123837 Extended Performance High Mileage 0W-20; 5QT, Gray (Pack of 2)

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Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 6-Pack of 1 quarts

Special Amazon deal ends in: