With so many Best 5w20 brands on the market – from prominent names like Valvoline,Mobil,Castrol to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.
We extensively tested and evaluated dozens of top-rated Best 5w20 across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best 5w20 to consider. Our top recommendation is Valvoline Best 5w20 for its uncompromising quality and performance.
Below you’ll discover more of our favorite Best 5w20 picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best 5w20 you’ll truly love.
Editor's Choice
Valvoline High Mileage with MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil 5 QT
Top 10 Best 5w20
We researched and compared the top products in the Best 5w20 category to provide you with these recommendations.
1. Valvoline High Mileage with MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil 5 QT
- MaxLife Technology prevents engine breakdown with 40% better wear protection than the industry standard
- Includes seal conditioners to reduce oil consumption and oil leaks in high mileage engines.
- Added detergents reduce sludge, corrosion, rust and deposits to help keep motors clean inside and ensure a smooth-running engine.
- Advanced friction-fighting additives help maximize performance and improve fuel efficiency.
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN
- American made and formulated, from the Original Motor Oil brand trusted for more than 150 years
2. Mobil 1 High Mileage Full Synthetic Motor Oil 5W-20, 5 Quart
- Mobil 1 High Mileage full-synthetic motor oil 5W-20 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
- Utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
3. Castrol EDGE 5W-20 Advanced Full Synthetic Motor Oil, 6 Quarts EcoPack
- 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
- ***Or one year, whichever comes first
- Approved and Licensed Specifications: Exceeds API SQ/SP/SN PLUS/SN | ILSAC GF-7
- Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1
4. Valvoline Full Synthetic High Mileage with MaxLife Technology 5W-20 Motor Oil 5 Quart
- Full synthetic formula is engineered with Enhanced MaxLife Technology to prevent engine breakdown in vehicles with over 75,000 miles
- Formulated with seal conditioners to prevent and treat oil leaks, Valvoline Full Synthetic High Mileage minimizes oil consumption and maximizes engine life
- 50% better wear protection than the industry standard and 25% extra defense against deposits, sludge, corrosion and rust
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN
- American made and formulated, from the Original Motor Oil brand trusted for more than 150 years
5. Castrol GTX Full Synthetic 5W-20 Motor Oil, 5 Quart Jug
- Castrol GTX Full Synthetic Motor Oil provides maximum protection to help fight the impact of severe conditions that can potentially shorten engine life
- Castrol GTX Full Synthetic has been proven to dramatically reduce engine wear - 6X better than the industry standard
- 1.3X better sludge protection than industry standards
- Full synthetic formula provides thermal and oxidation stability with a superior level of protection against viscosity breakdown
- Specifications: API SP/SN PLUS/SN, ILSAC GF-6, Meets Ford WSS-M2C947-B1
6. Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT (Packaging May Vary)
- ADVANCED PROTECTION AGAINST the four main causes of engine breakdown: wear friction heat and deposits
- 40% BETTER WEAR PROTECTION vs. industry standard as tested in the Sequence IVB engine test
- 25% BETTER DEPOSIT PROTECTION with superior engine cleaning detergents as tested in the GMOD engine test
- EXCEPTIONAL HIGH/LOW TEMPERATURE PROTECTION defends your motor no matter the weather conditions
- MEETS OR EXCEEDS ALL REQUIREMENTS of ILSAC GF-6A, API SP, API SN with SN PLUS, API SN
7. Castrol EDGE High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 6 Quarts EcoPack, 3 Pack
- 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
8. Castrol EDGE 5W-20 Advanced Full Synthetic Motor Oil, 5 Quarts
- 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
- ***Or one year, whichever comes first
- Approved and Licensed Specifications: Exceeds API SQ/SP/SN PLUS/SN | ILSAC GF-7
- Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1
9. Royal Purple 51520 API-Licensed SAE 5W-20 High Performance Synthetic Motor Oil - 5 Quart, (Model:
- Better wear protection
- Increased fuel efficiency
- Better protection of the expensive catalytic emission system
- Improved compatibility with fuels containing ethanol
- Superior corrosion protection
- Fit Type: Vehicle Specific
10. Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 1 QT
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- Full synthetic formula offers 24X stronger protection against engine-killing contaminants than the leading full synthetic motor oil
- 40% better wear protection vs. industry standards as tested in the Sequence IVB engine test
- 25% better deposit protection with superior engine cleaning detergents as tested in the GMOD engine test
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN
- American made and formulated, from the Original Motor Oil brand trusted for more than 150 years
Peter
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