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The Best Amsoil 10W-40 of 2023 – Reviewed and Top Rated

2,285 Reviews Scanned

Rank No. #2
Yamaha - Yamalube - 10W-40 4T Engine Oil - High Performance - Full Synthetic - 1 Gallon
  • Full-Synthetic High Performance Engine Oil
  • Formulated for Superior Performance and Durability
  • Designed to Provide Excellent Thermal Stability and Enhanced Fuel Efficiency
  • Enhanced Engine Performance and Protection for Any On & Off-Road Application.
  • Modern balanced formulation designed to maximize the durability of today's advanced high-performance engine parts.
Rank No. #3
Yamalube All Purpose 4 Four Stroke Oil 10w-40 1 Gallon
  • New look, same formula!
  • LUB-10W40-AP-04
  • 1 Gallon 10W-40 all purpose performance oil
Rank No. #4
HONDA 08C35-A141L01 Honda Pro GN4 Motor Oil, 10W40, 1 gal
  • 1 gallon, 10W40
  • Genuine OEM Honda oil
  • HONDA set the standard for motorcycle oil when it introduced GN4 way back in 1975
  • specifically designed for the unique requirements of motorcycle and ATV engines.
Rank No. #5
Royal Purple (36140-6PK HPS 10W-40 Synthetic Motor Oil with Synerlec Additive Technology - 1 Quart, (Case of 6)
  • Maximum Wear Protection
  • Increase Horsepower and Torque
  • Advanced Protection for Performance and Modified Engines
  • Exceptional Oxidation Stability
  • Fortified with Zinc/Phosphorus Anti-Wear Additive
SaleRank No. #6
Motul 7100 4T 10W-40 Synthetic Oil 4 Liters (104092)
  • Meets the following standards: API SL/SH/SG and JASO MA
  • Recommended for all 4-stroke motorcycles with catalytic converters
  • Ester technology improves engine response
  • Proprietary extreme pressure formula to protect the gearbox
  • Low sulfur and phosphorus formula for bikes fitted with catalytic converters
SaleRank No. #7
Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT
  • ANTI-FRICTION FORMULATION is specially designed for the extreme temperatures and high RPMs of 4-stroke motorcycles
  • FULL SYNTHETIC FORMULA MAXIMIZES POWER AND ACCELERATION with advanced additives engineered to outperform
  • OUTSTANDING WET CLUTCH PROTECTION FOR SMOOTH SHIFTING and maximum performance
  • PROTECTS AGAINST HARMFUL DEPOSITS & SLUDGE that may reduce oil flow and rob your engine of power and efficiency
  • RESISTS RUST, CORROSION AND WEAR caused by acids and condensation
SaleRank No. #8
Mobil 1 High Mileage Full Synthetic Motor Oil 10W-40, 5 Quart, Gray
  • Mobil 1 High Mileage full-synthetic motor oil 10W-40 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
  • Utilizes Mobil 1’s 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
Rank No. #9
Lucas Oil 10720 Semi-Synthetic SAE 10W-40 ATV Engine Oil - 1 Quart
  • Package Dimensions: 4.38 L x 2.13 H x 9.13 W (inches)
  • Package Weight : 2.08 pounds
  • Country of Origin : United States
  • Part number: 10720
Rank No. #10
Lucas Oil 10683 Hot Rod and Classic Car High Performance SAE 10W-40 Motor Oil, 5 Quart
  • fit type: Vehicle Specific
  • Package Dimensions: 12 L x 4.75 H x 8.25 W (inches)
  • Package Weight : 9.61 pounds
  • Part Number: 10683
SaleRank No. #11
Lucas Oil 10710 High Performance Semi-Synthetic SAE 10W-40 Motorcycle Oil - 1 Quart (Pack of 6)
  • Package Dimensions: 6.72 L x 9.88 H x 9.44 W (inches)
  • Package Weight : 13 pounds
  • Country of Origin : United States
  • Part number: 10710-6PK
SaleRank No. #12
Lucas Oil 10793 Synthetic SAE 10W-40 Motorcycle Oil Ma2, 32. Fluidounces, 1 Quart, 1 Pack
  • Package Dimensions: 22.352 cms (L) x 10.921 cms (W) x 6.096 cms (H)
  • Product Type: Auto Accessory
  • Package Quantity: 1
  • Country Of Origin: United States
Rank No. #13
Quicksilver 8M0060085 10W-40 Full Synthetic 4-Stroke Motorcycle Oil – 1 Gallon
  • PERFORMANCE - Full synthetic formula with excellent film strength to resist shear and oxidation for maximum fluid life
  • PROTECTION – Additives protect against corrosion of internal engine components and provides overall engine wear protection in high heat conditions
  • PEACE OF MIND - Easy starting and instant cold flow engine protection in low temperatures
  • HARSH CONDITIONS – Optimizes clutch performance even in wet clutch applications
  • FITS EVERYTHING – Meets or exceeds all major powersports vehicle manufacturer’s warranty requirements
Rank No. #14
Mobil 1 98JA11 10W-40 Racing 4T Motorcycle Oil for Sport Bikes - 1 Quart (Pack of 6)
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
Rank No. #15
Lucas Oil 10688 Hot Rod and Classic Car SAE 10W-40 Motor Oil - 1 Quart
  • made in united states
  • package height :6.096 cm
  • package length :22.352 cm
  • package width :10.921 cm
  • Fit type: Vehicle Specific
Rank No. #16
Royal Purple 01315 Max-Cycle SAE 10W-40 High Performance Motor Oil for Motorcycles & ATVs - 1 Quart
  • Formulated with proprietary Synerlec additive chemisty providing 3X to 4X the load carrying capacity of other synthetic engine oils
  • High film strength protects buckets, crankshafts and reduces piston scuffing
  • Superior rust and corrosion protection
  • Cooler operation and less parasitic power loss
  • Meets the requirements of JASO MA2 for wet clutch compatibility
Rank No. #17
Kawasaki 4-Stroke Full Synthetic Motorcycle Oil 10W40 Quart (2 Pack)
  • Improved starting and oil flow at low temperatures
  • Ultimate protection & performance in extreme conditions including high RPM, high temperatures and severe cold
  • Ultimate engine and bearing wear protection
  • Prolonged engine life from improved engine cleanliness, reduced oil volatility, ultimate thermal and oxidation stability
  • Ultimate shift quality through enhanced transmission / clutch performance and dependability
Rank No. #18
Kawasaki Pack of 2 99969-6296 SAE 10W-40 4-Cycle Engine Oil Quart and Fuel Treatment
  • 2-Quart Package
  • Kawasaki SAE 10W-40 Engine Oil Synthetic Blend
  • Yellow 3-n-1 Advanced Fuel Treatment by Power Performance 2oz Bottle Treats 10 gallons gas
Rank No. #19
Power Performance 10W-40 Oil Change Kit for Kawasaki 49065-0721 and Fuel Treatment
  • Replaces Kawasaki 49065-0721 Applications
  • SAE 10W-40 Synthetic Blend Engine Oil (2 Quarts)
  • Yellow 3-n-1 Advanced Fuel Treatment by Power Performance 2oz Bottle Treats 10 gallons gas
Rank No. #20
Shell Rotella T6 Full Synthetic 10W-30 Engine Oil (1-Gallon, Case of 3)
  • Full synthetic 10W-30 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown
  • Enhanced fuel economy capability of up to 2%* without compromising engine protection
  • Extreme temperature protection for more uptime in extreme conditions; ideal for locations with large ambient temperature ranges
  • Improved cold start performance so that oil reaches critical engine parts faster in cold weather
  • Exceptional wear protection for longer life in a wide range of heavy-duty engine applications—from pickup trucks to tractors to semi rigs

Last update on 2023-08-21 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: Is Amsoil the best oil?

A: Amsoil is the best because it is 100% Synthetic and lasts the longest because of the propriety ingredients. Also Amsoil protects better the the other motor oils because its film strenght is more complete and holds up better under extend heat cycles.

Q: What do cars use 10W40 motor oil?

A: Drivers commonly use 10W-40 motor oil in vehicles with higher mileage because the oil is thicker while the engine is hot; this helps lubricate older moving parts. This oil is meant to start up vehicles in winter climates that experience temperatures of 10 degrees Celsius.

Q: What does 10W-40 mean in motor oil?

A: Motor oils come in different weights or grades, and one of the most common for consumer vehicles is 10W-40. This designation refers to the viscosity of the oil in different temperature ranges. Viscosity refers to how easily a given liquid flows.

Q: Which oil is thicker 10W30 or 10W40?

A: Focusing more on the second part of the rating – the ’30’ versus ’40’ – we know that the engine oil with a 10W40 rating will be able to retain its ‘thickness’ or viscosity a lot longer than the engine oil with a rating of 10W30. In very simple words, the 10W40 oil is thicker than the 10W30 oil.

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