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Synthetic Motor Oils Comparison - July 2025

1
Best Choice
9.9Exceptional
2
9.6Exceptional
3
9.4Excellent
4
Best Value
9.3Excellent
5
9.1Excellent
6
9.0Excellent
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Model

Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 5 Quart
Model
Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT
Model
Mobil 1 High Mileage Full Synthetic Motor Oil 0W-20, 5 Quart, Gray
Model
Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil, 5 Quart
Model
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
Model
Valvoline Full Synthetic High Mileage with MaxLife Technology 5W-20 Motor Oil 5 QT

Brand

Mobil
Brand
Valvoline
Brand
Mobil
Brand
Pennzoil
Brand
Castrol
Brand
Valvoline

Reviews

115,995 reviews
Reviews
72,555 reviews
Reviews
10,206 reviews
Reviews
11,643 reviews
Reviews
55,440 reviews
Reviews
94,290 reviews

Features

Worth the money

9.8
Worth the money
9.8
Worth the money
9.8
Worth the money
9.8
Worth the money
9.9
Worth the money
9.3

Long life

9.8
Long life
9.8
Long life
9.8
Long life
9.8
Long life
9.8
Long life
9.1

Distance

9.9
Distance
9.8
Distance
9.9
Distance
9.8
Distance
9.8
Distance
9.1

Sheerness

9.9
Sheerness
9.4
Sheerness
9.9
Sheerness
9.4
Sheerness
9.8
Sheerness
9.1

Tech Specs

product dimensions

4.4 x 8.1 x 12.66 inches
product dimensions
-
product dimensions
4.4 x 8.1 x 12.66 inches
product dimensions
-
product dimensions
11.9 x 9.8 x 4.6 inches
product dimensions
8.22 x 4.6 x 12.66 inches 9.4 Pounds

item weight

9.18 pounds
item weight
-
item weight
9.22 pounds
item weight
9.13 pounds
item weight
9.39 pounds
item weight
-

viscosity

5W-20
viscosity
-
viscosity
0W-20
viscosity
5W-30
viscosity
5W-30
viscosity
-

manufacturer part number

120763
manufacturer part number
-
manufacturer part number
122536
manufacturer part number
550045195
manufacturer part number
03102C
manufacturer part number
-

customer reviews

4.8 4.8 out of 5 stars 38, 665 ratings 4.8 out of 5 stars
customer reviews
-
customer reviews
4.8 4.8 out of 5 stars 3, 402 ratings 4.8 out of 5 stars
customer reviews
4.8 4.8 out of 5 stars 3, 881 ratings 4.8 out of 5 stars
customer reviews
4.8 4.8 out of 5 stars 18, 480 ratings 4.8 out of 5 stars
customer reviews
-

model

Extended Performance
model
-
model
Extended Performance
model
Platinum High Mileage
model
03102
model
-

Review

Review Review Review Review
-
Review
-

Available On

Available On Available On Available On Available On Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.9
    1
    Mobil
    16% Off

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

    9.9 distance
    9.9 Sheerness
    9.8 worth the money

    Why we love it

    Extends engine life effectively.
    Suitable for various driving conditions.
    Highly trusted by users.
  • 9.6
    2
    Valvoline
    25% Off

    Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT

    9.8 worth the money
    9.8 Long life
    9.8 distance

    Why we love it

    Enhances engine longevity.
    Perfect for high-mileage vehicles.
    Exceptional additive packages.
  • 9.4
    3
    Mobil
    16% Off

    Mobil 1 High Mileage Full Synthetic Motor Oil 0W-20, 5 Quart, Gray

    9.9 distance
    9.9 Sheerness
    9.8 worth the money

    Why we love it

    Improves engine performance significantly.
    Extends mileage between oil changes.
    Excellent heat and cold protection.

Our ranking system

At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.

Features

Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
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Consumer Reviews

We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
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Popularity

Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
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Value for money

AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
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