Best Synthetic Oils Updated December 2024

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Best Synthetic Oils
2024 Buyer's GuideUpdated December 2024
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9.9

1

9.9

Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart
Flavor
Value for money
Longevity
Mileage
Sheerness
Picked by 226 people this week!
Picked by 226 people this week!

9.9

1
Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart
Flavor
Value for money
Longevity
Mileage
Sheerness

9.6

2

9.6

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT
Longevity
Mileage
Value for money
Sheerness

9.6

2
Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT
Longevity
Mileage
Value for money
Sheerness

9.2

3

9.2

Mobil 1-123840 Extended Performance High Mileage 5W-20; 5QT, Gray
Accuracy
Sheerness
Mileage
Longevity
Value for money

9.2

3
Mobil 1-123840 Extended Performance High Mileage 5W-20; 5QT, Gray
Accuracy
Sheerness
Mileage
Longevity
Value for money

9.1

4

9.1

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 5 Quart
Accuracy
Sheerness
Mileage
Longevity
Value for money

9.1

4
Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 5 Quart
Accuracy
Sheerness
Mileage
Longevity
Value for money

8.8

5

8.8

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT
Longevity
Mileage
Value for money
Sheerness

8.8

5
Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT
Longevity
Mileage
Value for money
Sheerness

8.7

6

8.7

Mobil 1 High Mileage Full Synthetic Motor Oil 10W-30, 5 Quart
Accuracy
Sheerness
Mileage
Longevity
Value for money

8.7

6
Mobil 1 High Mileage Full Synthetic Motor Oil 10W-30, 5 Quart
Accuracy
Sheerness
Mileage
Longevity
Value for money

8.6

7

8.6

Valvoline European Vehicle Full Synthetic SAE 0W-20 Motor Oil 1 QT, Case of 6

8.6

7
Valvoline European Vehicle Full Synthetic SAE 0W-20 Motor Oil 1 QT, Case of 6

8.4

8

8.4

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

8.4

8
Pennzoil Ultra Platinum Full Synthetic 0W-40 Motor Oil, 1 Quart (6 Pack)

8.3

9

8.3

Royal Purple 51530 API-Licensed SAE 5W-30 High Performance Synthetic Motor Oil - 5 qt., Model:ROY51530

8.3

9
Royal Purple 51530 API-Licensed SAE 5W-30 High Performance Synthetic Motor Oil - 5 qt., Model:ROY51530

8.2

10

8.2

Castrol GTX Full Synthetic 0W-20 Motor Oil, 5 Quarts

8.2

10
Castrol GTX Full Synthetic 0W-20 Motor Oil, 5 Quarts

Our Top Choice

9.9

1

9.9

Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart
Flavor
Value for money
Longevity
Mileage
Sheerness
Picked by 226 people this week!
Picked by 226 people this week!

9.9

1
Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart
Flavor
Value for money
Longevity
Mileage
Sheerness