10 Best Full Synthetic Oils 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 678 products, scanning 1630 reviews, spending more than 36 hours of research and speaking with our test users, we think the AmazonBasics Full Synthetic Motor Oil is the one of the Best Full Synthetic Oil on the market.

AmazonBasics Full Synthetic Motor Oil – Best Overall Full Synthetic Oil

AmazonBasics Full Synthetic Motor Oil

Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil – Best Budget Full Synthetic Oil

Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Dramatically reduce engine wear
  • Leave critical engine parts 4X smoother* * As tested in the industry Sequence IVA wear test
  • Superior wear protection on critical engine parts
  • Meets Specifications: API SN Plus, ILSAC GF-5, GM dexos1 Gen 2, Ford WSS-M2C929-A, WSS-M2C946-B1
  • Castrol recommends the use of Bosch oil filters

Castrol 03084 EDGE 5W-30 Advanced Full Synthetic Motor Oil

Castrol 03084 EDGE 5W-30 Advanced Full Synthetic Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • 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, A5/B5, GM dexos1, Meets Ford WSS-M2C929-A, Ford WSS-M2C946-A, Honda HTO-06, Meets engine test requirements of Chrysler MS-6395
  • Castrol EDGE is 3X stronger than Mobil 1 against viscosity breakdown* *Tested in the ASTM D6278 test in the 5W-30 viscosity grade.

Castrol 03060 GTX MAGNATEC 0W-20 Full Synthetic Motor Oil

Castrol 03060 GTX MAGNATEC 0W-20 Full Synthetic Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • -Dramatically reduce engine wear
  • -Leave critical engine parts 4X smoother* * As tested in the industry Sequence IVA wear test
  • -Superior wear protection on critical engine parts
  • -Unsurpassed level of protection against viscosity breakdown
  • -Unique full synthetic technology to fight against harmful sludge build-up
  • -High level of fuel economy based on US industry standards
  • -API SN; ILSAC GF-5; GM dexos1

Pennzoil Ultra Platinum Full Synthetic 5W-30 Motor Oil (5-Quart

Pennzoil Ultra Platinum Full Synthetic 5W-30 Motor Oil (5-Quart
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Oils formulated with pure plus technology consistently have lower viscosity at low temperatures, so the engine requires less effort to pump the oil at temperatures
  • Better viscosity control is achieved even under severe oxidative test conditions compared with using other API group II and III base oils
  • Drive on average an extra 550 miles per year
  • Helps protect engines from loss of power
  • Provides Faster low temperature oil flow and protects in extreme heat; Certification: SN/GF-5

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Excellent engine cleanliness through superior sludge and varnish protection
  • Outstanding high-temperature protection under severe driving conditions and superior cold-temperature protection through faster oil flow at start-up
  • Helps maintain fuel efficiency
  • Fully compatible with all conventional and leading synthetic motor oils
  • Valvoline's line of multi-viscosity oils include the following grades: 0W20, 5W20, 5W30, 10W30, and 20W50

Castrol 03124 EDGE 0W-20 Advanced Full Synthetic Motor Oil

Castrol 03124 EDGE 0W-20 Advanced Full Synthetic Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • 42 percent better rating on fighting power robbing deposits
  • Superior engine protection vs conventional and synthetic blend oils
  • Superior performance against deposits, wear and oxidation; Bottle Color: Black
  • Meets the needs of Honda, Toyota, Acura, Lexus and other vehicles where 0W-20 grade is recommended
  • Exceeds ILSAC GF-5, API SN, ACEA A1, ACEA B1

Castrol 03081 EDGE 10W-30 Advanced Full Synthetic Motor Oil

Castrol 03081 EDGE 10W-30 Advanced Full Synthetic Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • 42 percent better rating on fighting power robbing deposits
  • Superior engine protection vs conventional and synthetic blend oils
  • Superior performance against deposits, wear and oxidation; Bottle Color: Black
  • Meets GM 4718M and Chrysler MS 6395
  • Exceeds ILSAC GF-5, API SN, ACEA A1/A5, ACEA B1/B5

Pennzoil Platinum Full Synthetic 5W-30 Motor Oil (5-Quart – Premium Pick

Pennzoil Platinum Full Synthetic 5W-30 Motor Oil (5-Quart
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Full synthetic oil cleans out engine sludge better than conventional and synthetic blend oils
  • Superior Active Cleansing Agents
  • Better for severe driving conditions than conventional and synthetic blend oils
  • Helps keep engines cleaner with better wear protection
  • Exceeds the most stringent car manufacturer requirements for cleanliness and protection

Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 0W-20

Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 0W-20
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Premium, full synthetic base oil for the best protection against engine heat and stress
  • Seal conditioners rejuvenate aging engine seals to help stop and prevent oil leaks
  • Extra wear protection helps prevent future engine wear
  • Extra detergents keep older engines cleaner by bonding with and removing sludge and deposits

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