10 Best 5w30 Synthetic Oils

After analyzing 652 products, scanning 3260 reviews, spending more than 36 hours of research and speaking with our test users, we think the Valvoline SynPower 5W-30 Full Synthetic Motor Oil is the one of the Best 5w30 Synthetic Oil on the market.

Valvoline SynPower 5W-30 Full Synthetic Motor Oil – Best Overall 5W30 Synthetic Oil

Valvoline SynPower 5W-30 Full Synthetic Motor Oil
  • 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
  • Meets the performance requirements of virtually all naturally aspirated, turbocharged and supercharged passenger cars operating in North America
  • For any product use or product technical questions call 1-800-TEAM-VAL

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

Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil
  • Dramatically reduce engine wear
  • Leave critical engine parts 4X smoother
  • Add a layer of protection during warm-up and beyond
  • Cling to critical engine parts when the oil drains down
  • API SN; ILSAC GF-5; GM dexos1; Meets Ford WSS-M2C929-A; Meets Ford WSS-M2C946-A; Meets the performance of GM 6094M
  • Castrol recommends the use of Bosch oil filters

AmazonBasics Full Synthetic Motor Oil (SN Plus

AmazonBasics Full Synthetic Motor Oil (SN Plus
  • Full-synthetic motor oil (5W-30, 5 quart); formulated for longer drain intervals
  • Formulated to reduce likelihood of Low Speed Pre-Ignition; reduces friction for improved fuel economy and protection against engine wear
  • High resistance to viscosity and thermal breakdown
  • Helps to fight volatility burn-off to minimize engine deposits and exhaust emissions
  • dexos1 Gen 2, API SN Plus, and ILSAC GF-5 approved; always follow vehicle manual recommendations

Mobil 1 120764 Synthetic Motor Oil 5W-30

Mobil 1 120764 Synthetic Motor Oil 5W-30
  • The product is Mob 5QT 5W30 Sync Oil
  • Easy to use
  • The product is manufactured in USA
  • Advanced full synthetic formula. Helps prevent deposits and sludge build-up to enable long engine life
  • Excellent overall lubrication and wear protection performance for many driving styles. Outstanding thermal and oxidation stability
  • Outstanding performance during the maximum oil change interval recommended in a vehicle's owner's manual. Enhanced frictional properties
  • Aids fuel economy; excellent low-temperature capabilities
  • Quick cold weather starting for ultra fast protection; helps extend engine life

Valvoline High Mileage with MaxLife Technology 5W-30 Synthetic Blend Motor – Best Budget 5W30 Synthetic Oil

Valvoline High Mileage with MaxLife Technology 5W-30 Synthetic Blend Motor
  • 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
  • Anti-oxidants help prevent oil breakdown preventing engine-clogging sludge and deposit formation
  • For any product use or product technical questions call 1-800-TEAM-VAL

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

Castrol 03084 EDGE 5W-30 Advanced Full Synthetic Motor Oil
  • 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.Instructions:Take advantage of the 1 QT bottle for quick oil changes and top-offs
  • 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 recommends the use of Bosch oil filters

Royal Purple ROY11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil

Royal Purple ROY11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil
  • Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
  • Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple's proprietary additive technology
  • HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
  • Reduces friction and metal-to-metal contact for peak engine performance
  • Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up

Valvoline Daily Protection SAE 5W-30 Conventional Motor Oil

Valvoline Daily Protection SAE 5W-30 Conventional Motor Oil
  • Formerly Valvoline Premium Conventional Motor Oil; same great product, now in new packaging
  • Protects against all types of deposits at all temperatures to keep engines clean
  • Contains durable anti-wear additives that stay in the oil longer to improve protection and provides enhanced oxidation control to resist oil thickening
  • Provides thorough anti-wear protection exceeding current U.S., Japanese and European wear tests for gasoline and gasoline turbo-charged engines
  • For any product use or product technical questions call 1-800-TEAM-VAL

Castrol 03087 EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor

Castrol 03087 EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor
  • 15,000 miles between drain intervals guaranteed*
  • Recommended for severe applications such as towing and hauling, high performance driving, frequent short trips or idling, dusty, humid or extreme temperature environment
  • Engineered with fluid titanium technology that offers maximum strength under pressure
  • Reduces metal-to-metal contact across a range of different driving speeds. Protection: Proprietary titanium additive provides unsurpassed wear protection
  • Decreases engine deposit formation to help maximize engine response
  • 3X stronger against viscosity breakdown than Mobil 1 Extended Performance**
  • Best advanced full synthetic money can buy
  • API SN, ILSAC GF-5, ACEA A1/B1, Meets Ford WSS-M2C929-A, Ford WSS-M2C946-A, Honda HTO-06, Meets engine test requirements of Chrysler MS-6396
  • Castrol recommends the use of Bosch oil filters

Pennzoil 550045201 Ultra Platinum 5 quart 5W-30 Full Synthetic Motor

Pennzoil 550045201 Ultra Platinum 5 quart 5W-30 Full Synthetic Motor
  • 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

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