Best Full Synthetic Oil: image
Best Overall

Formula One racers, ValvolineTM 4-Stroke Full Synthetic Motorcycle Oil provides excellent wear and corrosion protection to help keep the engine performing at its best. The oil is formulated for high-performance motorcycles with high temperatures, high RPMs, and wet clutch systems. It has been tested on four different types of motorbikes including BMW, Audi, and Porsche. Notably, the formula was developed by British racing team VFR Motorsport in 2015. The oil contains no harmful chemicals or additives.

Best Value

Recommended by Ford Motor Company for use in the Ford GT, Shelby GT-500 and Boss 302 engines. The oil contains less than 10% ethylene glycol or contains a bittering agent. It is compatible with other synthetic and petroleum-based formulations. This product has been approved by the US Department of Energy (DOE) for use in the production of fuel cell vehicles. Notably, this product was not approved for use in the Porsche 911.

Honorable Mention

Castrol EDGE is 3X stronger against viscosity breakdown than the leading full synthetic and conventional motor oils. The oil has been tested in the 5W-30 test to ensure that it does not cause any damage to the engine. It also reduces friction, which can help increase fuel economy. Castrol EDGE is available in two different grades: Premium and Premium Plus. The premium version contains no additives or preservatives. Notably, petrol engines are more expensive than diesel ones.

Best Full Synthetic Oil

Top 10 Best Full Synthetic Oil

1
Why we chose it
  • Provides better fuel economy drive on average an extra 550 miles per year (versus a dirty engine)
  • Full synthetic 5W-20 engine oil made from made from natural gas, not crude, using Pennzoil’s patented gas-to-liquid PurePlus Technology
  • Single 5-quart bottle with ergonomic design for easy handling and pouring
  • Pennzoil Platinum 5W-20 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results)
  • Pennzoil is the first motor oil made from natural gas, not crude PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that’s crystal clear and contains fewer impurities than other traditional and synthetic motor oils
  • No other leading synthetic oil provides better wear protection from friction (Based on Sequence IVA wear test using SAE 5W-30)
  • Helps protect engines from loss of power
  • Formulated for modern turbocharged engines GF-6, API SP/SP-Resource Conserving and all previous categories
  • Formulated to provide faster low-temperature oil flow and protection in extreme heat
Pennzoil Platinum Full Synthetic 5W-20 Motor Oil (5-Quart, Single Pack): image
98%
customers recommend this product
4.9/ 5
Sheerness4.8
Longevity4.8
Mileage4.7
Value for money4.7
2
Why we chose it
  • Full synthetic 5W-20 engine oil made from natural gas, not crude, using Pennzoil’s patented gas-to-liquid PurePlus Technology
  • Keeps pistons dramatically cleaner than required by the toughest industry standards (Based on ILSAC GF-6 and Sequence IIIH piston deposit test using SAE 5W-30)
  • Helps protect engines from loss of power and provides better fuel economy drive on average an extra 550 miles per year (versus a dirty engine)
  • No other leading motor oil provides better wear protection for your engine (Based on Sequence IVA wear test using SAE 5W-30)
  • Pennzoil is the first motor oil made from natural gas, not crude PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that’s crystal clear and contains fewer impurities than other traditional and synthetic motor oils
  • Single 5-quart bottle with ergonomic design for easy handling and pouring
  • Suitable for all car, SUV, light van, truck gasoline and turbocharged engines under all driving conditions.
  • Formulated to provide faster low-temperature oil flow and protection in extreme heat
  • Delivers unsurpassed sludge protection to help keep high-performance and luxury car engines as close as possible to factory clean (Based on Sequence VH Sludge Test using SAE 5W-20)
Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (5 Quart, Single Pack): image
96%
customers recommend this product
4.8/ 5
Longevity4.8
Mileage4.7
Value for money4.7
Sheerness4.5
3
Why we chose it
  • 40% MORE PROTECTION than industry standards with enhanced anti-wear additives that build a bonus layer of defense between critical moving parts within your engine
  • RESIST OIL BREAKDOWN 10X BETTER than industry standards with a combination of premium antioxidants that fight oil breakdown and degradation
  • MINIMIZE EXPENSIVE REPAIRS due to exhaust system damage by shielding important engine components
  • 25% BETTER PROTECTION AGAINST deposits with extra engine-cleaning detergents
  • EXCEPTIONAL TEMPERATURE PROTECTION and viscosity retention ensure a high level of defense even in the most challenging climates
Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT (Packaging May Vary): image
96%
customers recommend this product
4.8/ 5
Longevity4.7
Value for money4.7
Mileage4.7
Sheerness4.5
4
Why we chose it
  • Best full synthetic money can buy
  • Advanced premium full synthetic motor oil to offer strength under extreme pressure
  • Reduces metal-to-metal contact across a range of different driving speeds
  • Castrol EDGE is 3X stronger than Mobil 1 against viscosity breakdown* *Tested in the ASTM D6278 test in the 5W-30 viscosity grade.
  • Decreases engine deposit formation to help maximize engine response
  • 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
  • Titanium strong for maximum engine performance
  • Protects the engine for the entire drain interval even under extreme pressure
Castrol 03084C Edge 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart: image
96%
customers recommend this product
4.8/ 5
Longevity4.7
Mileage4.7
Value for money4.7
Sheerness4.6
5
Why we chose it
  • Outstanding oxidation resistance supports long oil life in heavy duty engines
  • The Only One endorsed and recommended by Cummins
  • Superior wear protection for hardworking heavy-duty trucks and equipment
  • Superior synthetic base stocks provide faster, safe starts during freezing weather and enhanced thermal properties for hot weather operations
Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA, Case of 3: image
96%
customers recommend this product
4.8/ 5
Mileage4.7
Longevity4.7
Value for money4.5
Sheerness4.5
6
Why we chose it
  • Pennzoil Platinum High Mileage 5W-30 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results)
  • Full synthetic 5W-30 engine oil made from natural gas, not crude, using Pennzoil’s patented gas-to-liquid PurePlus Technology
  • Pennzoil is the first motor oil made from natural gas, not crude PurePlus Technology converts pure natural gas into high-quality, full-synthetic base oil that’s crystal clear and contains fewer impurities than other traditional and synthetic motor oils
  • Formulated to deliver less oil burn off than high mileage motor oils made from crude oil
  • No other leading high mileage motor oil provides better protection from friction (Based on Sequence IVA wear test using SAE 5W-30)
  • Provides faster low-temperature oil flow and protects in extreme heat
  • Designed for for vehicles with over 75,000 miles
  • Helps protect engines from loss of horsepower
  • Single 5-quart bottle with ergonomic design for easy handling and pouring
Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil for Vehicles Over 75K Miles (5-Quart, Single-Pack): image
96%
customers recommend this product
4.8/ 5
Value for money4.8
Longevity4.8
Mileage4.7
Sheerness4.6
7
Why we chose it
  • 50% MORE WEAR PROTECTION than industry standard with enhanced anti-wear additives that prevent unwanted metal-on-metal contact and provide an extra layer of protection that keeps your engine in excellent shape for the many miles ahead
  • RENEW AGING SEALS AND PREVENT LEAKS with state-of-the-art seal conditioners
  • REDUCE COSTLY REPAIRS by minimizing exhaust system damage with our fully synthetic formulation
  • MINIMIZE HEAT AND ABRASION between moving parts help your high-mileage engine maintain its horsepower and perform its best for longer
  • 25% MORE PROTECTION AGAINST DEPOSITS than the industry standard with extra detergents, keeping your engine clean and sustaining its performance
Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-20 Motor Oil 5 QT (Packaging May Vary): image
96%
customers recommend this product
4.8/ 5
Longevity4.7
Value for money4.7
Mileage4.7
Sheerness4.6
Top Pick
8
Why we chose it
  • 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
Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT: image
98%
customers recommend this product
4.9/ 5
9
Why we chose it
  • Formulated for automotive use
  • This oil is compatible with other synthetic and petroleum based formulations
  • Use according to owner guide recommendations
  • It meets API service category SN
  • Recommended by Ford Motor Company for use in the Ford GT, Shelby GT-500 and Boss 302
5w50 Ford Motorcraft XO-5w50-QGT Full Synthetic Motor Oil 12 qt case: image
96%
customers recommend this product
4.8/ 5
10
Why we chose it
  • For best performance, follow the manufacturer’s recommendations in your vehicle owner s manual.
  • Reduces friction for less engine wear
  • Ideal for engines over 75,000 miles and for longer drain intervals
  • Helps reduce exhaust emissions
  • Helps prevent build up that can cause rust and corrosion
  • High resistance to viscosity and thermal breakdown
Amazon Basics High Mileage Motor Oil, Full Synthetic, SN Plus, 5W-20, 5 Quart: image
96%
customers recommend this product
4.8/ 5
Value for money4.7
Mileage4.7
Longevity4.6
Sheerness4.6
Top Pick
Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT
Valvoline™ 4-Stroke Full Synthetic Motorcycle Oil delivers performance trusted by motorcycle owners and race teams around the world. It's formulated for the specific needs of high-performance motorcycles, including high temperatures, high RPMs, and wet clutch systems.
Ranking the Brands
Pennzoil: 30.00%
Valvoline: 40.00%
Castrol: 10.00%
Motorcraft: 10.00%
Amazon Basics: 10.00%

Comparison Table

Сomparison: Pennzoil Platinum Full Synthetic 5W-20 Motor Oil (5-Quart, Single Pack): imageСomparison: Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (5 Quart, Single Pack): imageСomparison: Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT (Packaging May Vary): imageСomparison: Castrol 03084C Edge 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart: imageСomparison: Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA, Case of 3: imageСomparison: Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil for Vehicles Over 75K Miles (5-Quart, Single-Pack): imageСomparison: Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-20 Motor Oil 5 QT (Packaging May Vary): imageСomparison: Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT: imageСomparison: 5w50 Ford Motorcraft XO-5w50-QGT Full Synthetic Motor Oil 12 qt case: imageСomparison: Amazon Basics High Mileage Motor Oil, Full Synthetic, SN Plus, 5W-20, 5 Quart: image
Pennzoil Platinum Full Synthetic 5W-20 Motor Oil (5-Quart, Single Pack)Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (5 Quart, Single Pack)Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil 5 QT (Packaging May Vary)Castrol 03084C Edge 5W-30 Advanced Full Synthetic Motor Oil, 5 QuartValvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA, Case of 3Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil for Vehicles Over 75K Miles (5-Quart, Single-Pack)Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-20 Motor Oil 5 QT (Packaging May Vary)Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT5w50 Ford Motorcraft XO-5w50-QGT Full Synthetic Motor Oil 12 qt caseAmazon Basics High Mileage Motor Oil, Full Synthetic, SN Plus, 5W-20, 5 Quart
Package InformationBottleBottleBottleBottleBottleBottleBottleCanBottleBottle
Viscosity5W-205W-200W-205w-305W405W-305w-2010w-405w-505W-20
BrandPennzoilPennzoilValvolineCastrolValvolinePennzoilValvolineValvolineMotorcraftAmazon Basics
Vehicle Service TypeCarCarCar, TruckCarTruckCarCar
Liquid Volume160 Fluid Ounces160 Fluid Ounces5 Quarts160 Fluid Ounces12 Quarts160 Fluid Ounces5 Quarts1 Quarts160 Fluid Ounces
ManufacturerPennzoilPennzoilValvolineCastrolValvolinePennzoilValvolineValvolineFORDAmazon Basics
Item Weight1.76 ounces9.2 pounds9.46 pounds3.7 pounds23.9 pounds9.2 pounds9.46 pounds1.75 pounds24.2 pounds9.38 pounds
Size5 Quart5 Quart5 Quart5 Quart5 QT1 QT
Is Discontinued By ManufacturerNoNoNoNoNo
Product Dimensions8.22 x 4.6 x 12.66 inches4.33 x 8.27 x 12.99 inches14.5 x 9.13 x 11.44 inches8.22 x 4.6 x 12.66 inches4.23 x 2.65 x 9 inches17 x 12 x 10 inches7.75 x 4.25 x 12.5 inches

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