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In Hurry? Checkout Our Top Pick Of Best Synthetic Oils.
Our Top Pick
9.7/10 our score
Best Synthetic Oils
Rank | Product Name | Score |
---|---|---|
1 |
Castrol GTX High Mileage |
9. 7 |
2 |
Shell Rotella T6 |
9. 5 |
3 |
Castrol Edge |
9. 1 |
4 |
Mobil 1 Extended Performance |
8. 8 |
5 |
Pennzoil Ultra Platinum |
8. 6 |
6 |
Royal Purple HP 2-C |
8. 2 |
7 |
Pennzoil's Marine Premium Plus |
8. 0 |
8 |
Royal Purple XPR |
7 .7 |
9 |
Mobil 1 |
7. 4 |
10 |
Red Line 15W50 |
7. 2 |
1. Castrol GTX High Mileage
9.7/10 our score
- Make sure this fits by entering your model number.
- For cars with over 75,000 miles
- Helps prevent catalytic converter and emission system failure
- Superior dispersancy that fights sludge build-up
- Exceptional oil burn-off protection exceeding industry standards** ** Based on API and ACEA volatility specifications
- Seal conditioners to help reduce leaks
- Advanced additives to minimize engine wear
- Improved fuel economy
- API SN, ILSAC GF-6
- Castrol recommends the use of Bosch oil filters
2. Shell Rotella T6
9.5/10 our score
- Make sure this fits by entering your model number.
- Provides 1.5% improved fuel economy performance compared to SAE 15W-40 oils
- Triple Protection Plus formula combines fully synthetic base oils with advanced additives for excellent equipment protection and long engine life
- Formulated with additive technology that protects against the effects of soot, dirt and other contaminants
- Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure
- Suitable for diesel-powered vehicles from tractor/trailers to classic cars and heavy-duty diesel pickups that allow an SAE 5W-40
3. Castrol Edge
9.1/10 our score
- Make sure this fits by entering your model number.
- Advanced premium full synthetic motor oil to offer strength under extreme pressure
- Titanium strong for maximum engine performance
- Reduces metal-to-metal contact across a range of different driving speeds
- Protects the engine for the entire drain interval even under extreme pressure
- Decreases engine deposit formation to help maximize engine response
- Best full synthetic money can buy
- API SN, ILSAC GF-5, ACEA A1/B1, GM dexos1, Meets Ford WSS-M2C947-A, Meets engine test requirements of Chrysler MS-6395
- Castrol recommends the use of Bosch oil filters
4. Mobil 1 Extended Performance
8.8/10 our score
- Make sure this fits by entering your model number.
- Advanced full synthetic formula, helps prevent deposits and sludge build-up to enable long engine life,Helps to maintain stable oil viscosity
- Excellent overall lubrication and wear protection performance under many operating conditions, precise balance of performance additives
- Helps provide outstanding engine protection, outstanding thermal and oxidation stability
- Exceptional control of oil breakdown, provides exceptional engine protection
- Helps maintain long engine life and is compatible with engine seals, excellent low-temperature capabilities, quick cold-weather starting for fast protection and extended engine life
5. Pennzoil Ultra Platinum
8.6/10 our score
- Make sure this fits by entering your model number.
- Engineered to provide a high-quality base oil using our revolutionary PurePlus gas-to-liquid technology in combination with a high performance additive system
- Delivers unsurpassed sludge protection to help keep high performance and luxury car engines as close as possible to factory clean
- Provides oil stability and endurance under extreme conditions (heat, load and speed) for protection against viscosity loss and thermal breakdown
- Formulated to deliver faster low temperature oil flow and protection in extreme heat
- Keeps pistons dramatically cleaner than required by the toughest industry standards
6. Royal Purple HP 2-C
8.2/10 our score
- Make sure this fits by entering your model number.
- Increased performance
- Greater wear protection
- Rust and corrosion protection
- Clean efficient engines
- Ashless to minimize exhaust deposits
7. Pennzoil's Marine Premium Plus
8/10 our score
- Make sure this fits by entering your model number.
- Formulated to keep your marine engine running clean
- Also acts as a multipurpose gear oil
- Guard against harmful engine deposits
- Protect against piston-scuffing
- Keep performance-robbing carbon deposits from forming in the combustion chamber, piston tops and under crowns and piston-combustion rings
8. Royal Purple XPR
7.7/10 our score
- Make sure this fits by entering your model number.
- Greater Wear Protection on Startup
- Clean Efficient Equipment Extends Equipment Life
- Compatible with Conventional Mineral and Synthetic Oils
- Non-Foaming, Outstanding Rust and Corrosion Protection
- High Temperature Service Capability
9. Mobil 1
7.4/10 our score
10. Red Line 15W50
7.2/10 our score
- Make sure this fits by entering your model number.
- Better protection
- Improved performance
- Quality you can trust