10 Best Synthetic Blend Oils

Updated December 2024

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Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 5

9.7

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Delo 257004470 400 XLE SAE Synblend Synthetic Blend Oil 15W40, 1 Gallon, 1

9.3

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Castrol 03100 GTX High Mileage 5W-20 Synthetic Blend Motor Oil, 5 Quart

9.3

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AmazonBasics High Mileage Motor Oil, Synthetic Blend, 5W-30, 5 Quart

8.8

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Castrol 03110 GTX High Mileage 10W-30 Synthetic Blend Motor Oil, 5 Quart

8.5

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Castrol 03112 GTX High Mileage 20W-50 Synthetic Blend Motor Oil, 5 Quart

8.2

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Shell Rotella T5 Synthetic Blend 10W-30 Diesel Engine Oil (1-Gallon, Single Pack)

Shell Rotella T

8.0

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Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack)

Shell Rotella T

7.8

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Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil

Shell Rotella T

7.2

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Valvoline 779310 Premium Motor Oil, 5W-20, 5-Qts. - Quantity 3

7.6

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