Top 9 10W-40 Full Synthetic Motor Oil – Motor Oils

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1. Mobil 1


5 qt., Mobil 1 10W-40 High Mileage Full Synthetic Motor Oil

Mobil 1 #ad - 5-qt bottle ideal for multiple oil changes Helps older engines last for a longer time. Ideal for passenger cars, SUVs, light vans and trucks. High-mileage passenger car motor oil specially designed for older engines. Provides wear protection, cleaning power and overall performance. Reduces deposits and sludge Contains a seal conditioner to keep seals in working condition and help prevent leaks.
BrandMobil 1 #ad
ManufacturerMobil 1 #ad
Part Number98KG82

2. Speedol


Speedol Zeta 10W-40 Full Synthetic Motor Oil 5-Quarts 4.73 L | Premium Quality High Performance Gasoline and Diesel Engine Oil

Speedol #ad - Can also be used for API CF performanced diesel engines. Offers high performance under difficult conditions. High technology multi-grade full synthetic motor oil reduces friction in engine parts and provides longer drain intervals.

Speedol is a u. S. High resistance to viscosity and thermal breakdown. At low temperatures; helps engine warm up and run smoothly, at high temperatures; resists thinning thus extending engine’s lifespan. Brand that has been manufacturing high performance oils, lubricants and other petroleum products since 1921. Promotes long engine life due to extremely fast lubrication during starting, and outstanding wear protection during all other engine operating conditions.

Speedol zeta is a fully synthetic gasoline engine oil manufactured for four stroke engines with high technology synthetic base oils and high performance additives. Its lubricants and greases have OEM approvals from international engine and machine manufacturers around the world.
BrandSpeedol #ad
ManufacturerSpeedol #ad
Part NumberZETA-10W40-5QTS

3. Valvoline


Case of 6, Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT

Valvoline #ad - Excellent wear and corrosion protection to help keep the engine performing its best. Formulated to provide outstanding wet clutch protection for maximum power transfer and smooth shifting. Full synthetic formula helps maximize power and acceleration. Added protection against harmful deposits that can decrease engine performance.
BrandValvoline #ad
ManufacturerValvoline #ad
Height9.25 Inches
Length13.13 Inches
Weight12.09 Pounds
Width5.75 Inches
Part Number507679

4. Mobil 1


Mobil 1, 120771 High Mileage 10W-40; 5QT

Mobil 1 #ad - Helps provide low-speed pre-ignition LSPI and timing chain wear protection while keeping your engine clean. Helps extend engine life by working to prevent damaging deposits and sludge buildup. 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*. Helps to protect your engine from the five factors that can damage engines over time. Provides excellent internal engine heat protection up to 500 degrees F and low temperature protection to -20 degrees F.
BrandMobil 1 #ad
ManufacturerExxonMobil #ad
Height12.66 Inches
Length8.1 Inches
Weight10.07 Pounds
Width4.4 Inches
Part Number120771
ModelHigh Mileage
WarrantyLimited Warranty - Please contact manufacturer for full details

5. Castrol


Castrol 03081 Edge 10W-30 Advanced Full Synthetic Motor Oil, 5 Quart

Castrol #ad - 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.
BrandCastrol #ad
ManufacturerCastrol #ad
Part Number03081C
WarrantyAs labelled

6. Valvoline


Valvoline High Mileage with MaxLife Technology SAE 10W-40 Synthetic Blend Motor Oil, Easy Pour 5 Quart

Valvoline #ad - Seal conditioners rejuvenate aging engine seals to help stop and prevent oil leaks. Anti-oxidants help prevent oil breakdown preventing engine-clogging sludge and deposit formation. Extra detergents help keep older engines cleaner by bonding with and removing sludge and deposits. Extra wear protection helps prevent future engine wear.
BrandValvoline #ad
ManufacturerValvoline #ad
Height12.66 Inches
Length8.2 Inches
Weight9.59 Pounds
Width4.48 Inches
Part Number000000000000782482
Warranty1 year manufacturer

7. Amazon Basics


6 Pack, 1 Quart, AmazonBasics Full Synthetic Motor Oil, Euro Formula 5W-40

Amazon Basics #ad - Helps prevent build up that can cause rust and corrosion. Helps reduce exhaust emissions. High resistance to viscosity and thermal breakdown. Formulated for longer drain intervals. Reduces friction for less engine wear. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
BrandAmazon Basics #ad
ManufacturerAmazonBasics #ad
Height9 Inches
Length4.38 Inches
Weight2.03 Pounds
Width2.38 Inches
Part NumberAM0654P6
Warranty60 Day Customer Satisfaction

8. Castrol


5 Quart, Castrol 03111C GTX High Mileage 10W-40 Synthetic Blend Motor Oil

Castrol #ad - Advanced additives that help prevent engine wear. Superior oil burn off protection versus leading conventional oils. Seal conditioners help reduce leaks; Bottle Color: Green. Superior detergency that helps prevent deposit build up. Exceeds ilsac gf-5, aPI SN.
BrandCastrol #ad
ManufacturerCastrol #ad
Height4.5 Inches
Length11.6 Inches
Width9 Inches
Part Number03111C

9. Castrol


1 Quart Bottle, 6 Pack 15D1C9, Castrol 06112 POWER 1 4T 10W-40 Synthetic Motorcycle Oil

Castrol #ad - Extreme high temperature air-cooled performance and water-cooled engine performance. Formulated with trizone technology to protect all 3 critical zones: engine, clutch and gearbox. Race derived technology for maximum engine acceleration. Exceeds api sl and jASO MA-2. Excellent shear stability to prevent viscosity breakdown.
BrandCastrol #ad
ManufacturerCastrol #ad
Weight2 Pounds
Part Number06112
WarrantyManufacturer Warranty