10 Best Engine Oil of December 2025

• Innovative anti-wear additives provide 50% more wear protection than industry standards as tested in the industry Sequence IVA wear test
• Full synthetic formula for exceptional high and low temperature protection
• Extra detergents help fight sludge and deposits
• Superior antioxidants resist motor oil breakdown in extreme conditions

Valvoline

• Lowers oil temperature
• Minimizes metal fatigue
• Improves pressure in worn engines
• Contains the high levels of zinc necessary to protect flat tappet cams, lifters and pushrods

Lucas Oil

• For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
• Ideal for engines over 75,000 miles and for longer drain intervals
• Helps prevent build up that can cause rust and corrosion
• Reduces friction for less engine wear
• High resistance to viscosity and thermal breakdown
• Helps reduce exhaust emissions

Amazon Basics

• 100% Synthetic SAE 5W-30
• For Use In All Air Cooled 4-cycle Engines
• 32 Oz. bottle

Briggs & Stratton

• 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

• Enhanced anti-wear additives deliver a thick & durable layer of anti-wear film to help prevent auto engine breakdown
• Added detergents help protect against sludge and deposits
• Premium seal conditioners help treat and prevent leaks
• Superior antioxidants resist motor oil breakdown in extreme conditions

Valvoline

• Superior detergency that helps prevent deposit build up
• Superior oil burn off protection versus leading conventional oils
• Seal conditioners help reduce leaks; Bottle Color: Green
• Advanced additives that help prevent engine wear
• Exceeds ILSAC GF-5, API SN

Castrol

• Mobil 1 advanced full synthetic motor oil 5W-30 helps to protect your engine from the five factors that can damage engines over time
• Helps to protect critical engine parts for up to 10,000 miles between oil changes*, controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
• Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI), timing chain wear protection while keeping your engine clean and helping your fuel economy
• Helps extend engine life by working to prevent damaging deposits and sludge buildup
• Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)

Mobil 1

• Enhanced anti-wear additives deliver a thick & durable layer of anti-wear film to help prevent auto engine breakdown
• Full synthetic formula for exceptional high and low temperature protection
• Extra detergents help fight sludge and deposits
• Premium seal conditioners help treat and prevent leaks

Valvoline

• Tested and approved by Briggs & Stratton engineers
• Warranty certified and recommended in all Briggs & Stratton manuals
• A high quality detergent oil classified SJ/CD by the API
• Conveniently sized for today's engines
• 48 Fl. oz. (1.418 L)

Briggs & Stratton