10 Best Synthetic Motor Oils

Last Updated November, 2021

Number Name Description Price
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#1

Castrol Synthetic Motor Oils
Castrol 159AE1 06080 Power RS V-Twin 20W-50 4-Stroke Motorcycle Oil - 1 Quart, (Pack...
Overall Big Guide Rating
Based on 378 reviews
$45.00 Available on Prime
  • Rating Info
  • Size 9.8
  • Build and design 9.8
  • Material quality 9.5
  • Noise 9.3

#2

Shell Rotella Synthetic Motor Oils
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (5-Gallon Pail)
Overall Big Guide Rating
Based on 2564 reviews
$273.77 Available on Prime
  • Rating Info
  • Size 9.3
  • Build and design 9.3
  • Material quality 9.4
  • Noise 9.2

#3

Castrol Synthetic Motor Oils
Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, Green, 5 Quart
Overall Big Guide Rating
Based on 1905 reviews
$19.96 Available on Prime
  • Rating Info
  • Accuracy 9.8
  • Value for money 9.1
  • Material quality 9.2
  • Giftable 9.9

#4

Amazon Basics Synthetic Motor Oils
Amazon Basics Full Synthetic Motor Oil, SN Plus, 5W-30, 5 Quart
Overall Big Guide Rating
Based on 1835 reviews
$22.99 Available on Prime
  • Rating Info
  • Size 9.0
  • Build and design 9.2
  • Material quality 9.9
  • Noise 9.3

#5

Valvoline Synthetic Motor Oils
Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT
Overall Big Guide Rating
Based on 2466 reviews
$22.47 Available on Prime
  • Rating Info
  • Accuracy 9.5
  • Value for money 9.2
  • Material quality 9.4
  • Giftable 9.5

#6

Castrol Synthetic Motor Oils
Castrol 03084C Edge 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart
Overall Big Guide Rating
Based on 1040 reviews
$40.00
  • Rating Info
  • Size 9.9
  • Build and design 9.5
  • Material quality 9.7
  • Noise 9.3

#7

Valvoline Synthetic Motor Oils
Valvoline Daily Protection SAE 5W-30 Synthetic Blend Motor Oil 5 QT
Overall Big Guide Rating
Based on 47 reviews
$26.99 Available on Prime
  • Rating Info
  • Size 9.1
  • Build and design 9.7
  • Material quality 9.2
  • Noise 9.8

#8

Pennzoil Synthetic Motor Oils
Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil for Vehicles Over 75K...
Overall Big Guide Rating
Based on 2218 reviews
$35.99 Available on Prime
  • Rating Info
  • Size 9.3
  • Build and design 9.7
  • Material quality 9.6
  • Noise 9.0

#9

Royal Purple Synthetic Motor Oils
Royal Purple 11748 HMX SAE 5W-30 High Mileage Synthetic Motor Oil - 5 Qt.
Overall Big Guide Rating
Based on 1849 reviews
$43.99 Available on Prime
  • Rating Info
  • Size 9.6
  • Build and design 9.4
  • Material quality 9.2
  • Noise 9.7

#10

Valvoline Synthetic Motor Oils
Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 5...
Overall Big Guide Rating
Based on 2567 reviews
$18.76 Available on Prime
  • Rating Info
  • Accuracy 9.4
  • Value for money 9.6
  • Material quality 9.0
  • Giftable 9.0
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