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10 Best Castrol Edge 5w20 Synthetic Motor Oil of 2025

Tested and Reviewed: Top 10 Castrol Edge 5w20 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 10%

Castrol GTX 5W-20 Synthetic Blend Motor Oil, 5 Quarts

Castrol

Castrol GTX 5W-20 Synthetic Blend Motor Oil, 5 Quarts

10% OffFree Shipping

Editor's bottom line:

“This castrol edge 5w20 synthetic motor oil is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Premium-quality base oils and anti-wear additives that help extend engine life
Superior protection against engine sludge
Advanced protection against viscosity and thermal breakdown
Superior protection against high-temperature deposits
Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |

Picked by 303 people today

2

9.5

Save 5%

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

Castrol

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

5% OffFree Shipping

Main Highlights

6X better wear protection on critical engine parts than industry standards**
1.3X better sludge protection than industry standards*
3X Stronger against viscosity breakdown than leading full synthetic^
Protection for 10,000 miles between oil changes
Meets or exceeds the following specifications: API SP/SN PLUS/SN | ILSAC GF-6 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |

3

9.5

Save 5%

Castrol EDGE 5W-20 Advanced Full Synthetic Motor Oil, 5 Quarts

Castrol

Castrol EDGE 5W-20 Advanced Full Synthetic Motor Oil, 5 Quarts

5% OffFree Shipping

Main Highlights

3X Stronger than the leading full synthetic*
10X Better high stress performance**
20,000 miles between oil changes***
Approved and Licensed Specifications: Exceeds API SP/SN PLUS/SN/SM |ILSAC GF-6 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |
*Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade |**As measured in Seq IX test under high load/torque conditions vs. API SP test limits | ***Or one year, whichever comes first

4

9.2

Save 5%

Castrol EDGE High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 5 Quarts

Castrol

Castrol EDGE High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 5 Quarts

5% OffFree Shipping

Main Highlights

Phosphorus Replacement Technology to help extend the life of the emission system
Reduces leaks, oil burnoff and power robbing deposits
15,000 miles between oil changes*
Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM ILSAC GF-6 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1
*Or one year, whichever comes first

5

9.0

Castrol Edge Extended Performance 5W-20 Advanced Full Synthetic Motor Oil 5 Quart

Castrol

Castrol Edge Extended Performance 5W-20 Advanced Full Synthetic Motor Oil 5 Quart

Main Highlights

3X Stronger than the leading full synthetic*
Highest level of wear protection
25,000 miles between oil changes**
Approved and licensed specifications: Exceeds API SP/SN PLUS/SN/SM | ILSAC GF-6 | ACEA C5 | Fiat 9.55535-CR1, 9.55535-GSX |GM dexos1 Gen 6
MB-Approval 229.71 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A1

6

8.8

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

Castrol

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

Main Highlights

Phosphorus Replacement Technology helps extend emission system life
Superior dispersancy that fights sludge build up
Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
Advanced additives that help prevent engine wear | Improved Fuel Economy**
Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |* Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

7

8.6

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

Castrol

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

Main Highlights

3X Stronger than the leading full synthetic*
10X Better high stress performance**
20,000 miles between oil changes***
*Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade
**As measured in Seq IX test under high load/torque conditions vs. API SP test limits
***Or one year, or whichever comes first

8

8.3

Save 15%

Castrol Edge High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 2

Castrol

Castrol Edge High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 2

Main Highlights

The information below is per-pack only
Titanium strong for maximum engine performance in vehicles with over 75,000 miles
Maximizes short and long term engine performance on high mileage engines
Boosted with extra fluid titanium technology to increase oil film strength and reduce film breakdown
Reduces leaks, oil burn off and power-robbing deposits
Improves fuel economy

9

8.1

Save 11%

Castrol EDGE High Mileage 0W-20 Advanced Full Synthetic Motor Oil, 5 Quarts

Castrol

Castrol EDGE High Mileage 0W-20 Advanced Full Synthetic Motor Oil, 5 Quarts

11% OffFree Shipping

Main Highlights

Phosphorus Replacement Technology to help extend the life of the emission system
Reduces leaks, oil burnoff and power robbing deposits
15,000 miles between oil changes*
Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A2
*Or one year, whichever comes first

10

8.1

Save 5%

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

Castrol

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

5% OffFree Shipping

Main Highlights

3X Stronger than the leading full synthetic*
10X Better high stress performance**
20,000 miles between oil changes***
Approved and Licensed Specifications: Exceeds API SP/SN PLUS/SN/SM |ILSAC GF-6 | GM dexos1 Gen 3 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A1 |
*Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade |**As measured in Seq IX test under high load/torque conditions vs. API SP test limits | ***Or one year, whichever comes first

Our Best Overall Choice

9.7

Castrol GTX 5W-20 Synthetic Blend Motor Oil, 5 Quarts

Castrol

Castrol GTX 5W-20 Synthetic Blend Motor Oil, 5 Quarts

10% 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

Premium-quality base oils and anti-wear additives that help extend engine life
Superior protection against engine sludge
Advanced protection against viscosity and thermal breakdown
Superior protection against high-temperature deposits
Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |

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Castrol Edge Euro 5W-30 A3/B4 European Advanced Full Synthetic Motor Oil, 5 Quarts

Castrol Edge Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart

Castrol Edge Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart

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

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

Castrol EDGE 5W-50 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE 5W-50 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol Edge High Mileage 5W-30 Advanced Full Synthetic Motor Oil, 1 Quart, Black, Pack of 2

Castrol Edge High Mileage 5W-30 Advanced Full Synthetic Motor Oil, 1 Quart, Black, Pack of 2

Castrol EDGE High Mileage 10W-30 Advanced Full Synthetic Motor Oil, 5 Quarts

Castrol EDGE High Mileage 10W-30 Advanced Full Synthetic Motor Oil, 5 Quarts

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

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

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

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

Castrol Edge Extended Performance 0W-20 Advanced Full Synthetic Motor Oil 5 Quart, Pack of 3

Castrol Edge Extended Performance 0W-20 Advanced Full Synthetic Motor Oil 5 Quart, Pack of 3

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Special Amazon deal ends in:

Castrol GTX 5W-20 Synthetic Blend Motor Oil, 5 Quarts

Special Amazon deal ends in: