Top 10 Best Synthetic Oil for Your Car

What’s the best synthetic oil? Well, it might be the one that provides more mileage. 

Also, it can effectively keep your engine clean and ensure its performance in both low and extreme temperatures. On top of that, good synthetic engine oil can provide superior protection to your engine that spares it from significant wears. 

Engine oil is available in two forms: conventional and synthetic. Some car enthusiasts may tell you that the conventional engine oil is as good as the synthetic oil. They may even say that naming it “synthetic” is just to confuse and entice people to buy. 

Why go for synthetic oil over its conventional counterpart? Well, a synthetic engine oil offers more benefits than conventional oil. 

Your Best Choices for Synthetic Oil This 2020

Mobil 1 Synthetic Motor Oil

(Best Overall)

Mobil 1 120764 Synthetic Motor Oil 5W-30, 5 Quart

Mobil 1 is an international and early innovator of quality synthetic motor oils, and this legacy continues today. The company produces advanced synthetic motor oils designed to keep the crucial components of your car in their tiptop condition for up to 250,000 miles. 

Mobil 1 120764 is a quality advanced fully synthetic motor oil that you can use in keeping your car’s engine as efficient and good as new. The product provides excellent wear protection, great performance, and superb cleaning power. This synthetic oil can work on various vehicles, including some high-performing vehicles.

This product has a revolutionary full-synthetic formula. It can help prevent sludge and deposits buildup from enabling extended engine life. Considering its advanced formula, this synthetic oil may offer the best in terms of lubrication as well as wear security performance suitable for various driving styles. 

Mobil 1 120764 also helps in fuel economy. It also guarantees super-fast protection. Moreover, this product aims to help drivers extend their engine life and minimize stress on the starting system mechanisms. 

Key Features:Specs:
★ Packed in 5-quarts
★ Simple to use
★ With a carrying handle
★ Brand: Mobil 1
★ Model: 120764
★ Weight: 9.35 lbs. 


  • Can effectively resist freezing
  • Washstands extreme temperatures
  • Keeps the car engines clean
  • Flows quickly


  • Not suitable for gasoline and diesel
  • Cannot be used in aviation engines

Castrol GTX MAGNATEC Full Synthetic Motor Oil

(Best Value)

Castrol is a famous brand of synthetic engine oil originating in Europe. Founded in 1899, the company has its headquarters located in Liverpool, UK. 

Castrol 03057 can be a good option when dealing with engine wear. This product assures to make engines 4x smoother than they were. One of the best things about this synthetic oil is that it contains smart molecules that stick to the engines during all driving conditions. It occurs even when the engines are off. 

When the engines stop, the synthetic oil will go back to the sump. Castrol claims this will never happen with the Castrol GTX MAGNATEC. The molecules will not drain down. Instead, they cling to the most important parts of car engines. The magnet is one of them. 

The superb action of this synthetic oil helps in protecting your engines since 75% of the engine wear takes place during the warming up process. Since the oil drains down on the engines when they shut off, that issue is less going to happen. This will result in reduced engine wear that may happen in the long run.

Key Features:Specs:
★ Reduces engine wear
★ Optimal wear protection
★ Meets specifications like API SN Plus and ILSAC GF-5
★ Brand: Castrol
★ Model: 03057
★ Weight: 9.35 lbs.


  • Minimizes engine wear
  • Adds more protection for startup and driving
  • Meets numerous standards


  • Oil leak issues involving the cap

Valvoline Advanced Full Synthetic Motor Oil

(Premium Pick)

Valvoline Inc. claims to be the industry leader, producer, and distributor of the premium brand lubricants for industrial, commercial, and automotive. The company is also producing and distributing automotive chemicals. The company produced a wide selection of products that include this synthetic oil. 

Valvoline Advanced is the fully-synthetic engine oil that promises to deliver superior protection for hardworking vehicles, SUVs, and trucks in extreme conditions. Crafted with the innovative additive technology, Valvoline Inc. said this synthetic oil has a special formula that can combat mild to serious engine pressure from extreme temperatures, stop and go driving, hauling, and towing. This synthetic engine oil could help a lot in keeping your engine’s operation at its best.

Key Features:Specs:
★ Good for heavy-duty vehicles, trucks, and SUVs
★ Can deal with extreme temperatures
★ High-temperature protection
★ Brand: Valvoline
★ Model: 787007
★ Weight: 9 lbs. 


  • Great for heavy-duty vehicles
  • Innovative additive technology
  • Fights serious engine pressure


  • Expensive

AmazonBasics Full Synthetic Motor Oil

AmazonBAsics Motor Oil is a synthetic engine lubricant created and sold by Warren Distribution Incorporated. The company started as a small oil company, which was founded in 1922. Today, AmazonBasics is among the leading brands in terms of contract blending, private label, and packaging of quality automotive lubricants.

This engine oil has been claimed to be protective of the engine. The brand assures the capacity of this product to protect the engine against minor to severe conditions. Apart from that, it provides longer drain intervals and excellent blend quality. It helps enhance fuel economy while giving exceptional friction protection.

It has a special formula to minimize low-speed pre-ignition. The brand is claiming this product can meet and even surpass the GM dexos1 Gen. 2 specs. At the same time, the company also says it can meet or surpass the requirements set for API, SM, SL, SN, SN PLUS, GF-4, and ISAC GF-5.

Key Features:Specs:
★ Meets GM dexos1 Gen. 2 specs
★ Meets the requirements for API, SM, SL, and so on
★ Brand: AmazonBasics
★ Model: AM0D533Q
★ Weight: 9.37 lbs. 


  • 8,000-10,000 oil change intervals based on the use and vehicle
  • Minimizes low-speed pre-ignition
  • Gen 2 Dexos1 approved


  • Not good for turbocharged vehicles

Royal Purple High-Performance Synthetic Motor Oil

Royal Purple is popular and trusted among high-performance car owners. It features improved additive technology, which helps avert metal-to-metal contact further than both ILSAC GF-5 and GM dexos1 specs. At the same time, it offers improved fuel economy and protection for car exhaust emission tools. 

Moreover, this synthetic oil comes with the original anti-wear improver chemistry that helps in reducing the negative effects that the exhaust gases can cause to a catalyst. If you are using gasoline with ethanol, this engine oil can be good for your vehicle. 

It features an advanced additive technology that helps prevent the lubrication starvation and white sludge that may take place with the highly concentrated gasoline-and-ethanol mixtures. 

Key Features:Specs:
★ Improved additive technology
★ Anti-wear improver chemistry
★ Improved fuel economy
★ Brand: Royal Purple
★ Item model: 51520
★ Weight: 8 lbs. 


  • Provides improved wear protection
  • Increases fuel efficiency
  • Protects the engine against corrosion


  • Limited viscosity options

Shell Rotella Synthetic Blend Diesel Engine Oil

Rotella is a trademark of one of the largest gasoline and automotive products brand – Shell. The company launched several synthetic engine oils under Rotella. One of these is Shell Rotella T5 synthetic engine oil.

This product features the advanced low-ash formula that aims to help in controlling the poisoning or blocking of exhaust after the treatment tools. Thus, it helps to maintain vehicle emissions amenability and engine fuel efficacy. 

The components of this synthetic oil make it possible to enhance cold starting and the performance of your engine when working under low temperatures to lessen fuel consumption. 

The revolutionary formula provides excellent engine sanitation and protection against the piston deposits. It ensures component and engine reliability at lengthy oil drain interludes. This synthetic oil meets the requirements of the main US engine manufacturers for the low-emission uses. 

Key Features:Specs:
★ Advanced low-ash formula
★ Enhances cold starting
★ Revolutionary formula
★ Brand: Shell Rotella
★ Model: 550045348
★ Weight: 7.7 lbs. 


  • Keeps the engine clean
  • Maintains vehicle emissions amenability and engine fuel efficacy
  • Advanced low-ash formula


  • Some customers complain of leak issues

Pennzoil Platinum Full Synthetic Motor Oil

Pennzoil Platinum Full Synthetic Motor Oil 5W-30 – 5 Quart

Pennzoil provides a wide array of automotive products, ranging from motor oils, fluids, filters, to other lubricants. The brand runs under the management of Royal Dutch Shell. The company has been around since 1913, running with its headquarters located in Houston, TX.

This synthetic oil from Pennzoil has a pure formula and is said to be one of the top 5w30 synthetic oils available, designed to withstand extreme temperatures, this synthetic oil promise to keep engines running even under extremely low or high temperatures. 

For that, this synthetic engine oil is being used in motorsports and racing. Pennzoil guarantees to help engines bring out the best in them while giving the cleaning action and protection they deserve. 

Key Features:Specs:
★ Fully synthetic
★ Enhanced fuel economy
★ Helps the engines deal with extreme temperatures
★ Brand: Pennzoil
★ Model: 550038221
★ Weight: 9 lbs. 


  • Best in motorsports and racing
  • Can withstand extreme temperatures
  • Cleans and protects the engines


  • Expensive

Liqui Moly Synthetic Motor Oil

Liqui Moly is a German brand of synthetic oil. It’s quite popular among car owners in Europe. Designed to provide superior protection from engine wear, this product is expected to deliver extended service life for the engine by quickly delivering oil in low temperatures.

The product also ensures increased lubrication reliability in both low and high temperatures. This leads to an expert engine cleaning process. This synthetic oil has been approved for API CF, SN, ACEA A3, and B4. You can use this synthetic oil for both diesel and gasoline-powered engines.

Key Features:Specs:
★ Approved for API CF, SN, ACEA A3, and B4
★ Increased lubrication reliability
★ Provides superior protection for engines
★ Brand: Liqui Moly
★ Model: 2041
★ Weight: 10 lbs.


  • Higher lubrication at low and high temperatures
  • Cleans and protects the engines
  • Good for fast oil delivery in low temperatures


  • Fewer viscosity grades

Castrol POWER1 Synthetic Motorcycle Oil

Castrol claims this synthetic oil to facilitate high acceleration. The product features a great synthetic combination created using the proprietary Trizone Technology. The engine oil protects the engine, gearbox, and the clutch.

Specifically crafted for racing, Castrol claims this synthetic oil can provide high-temperature performance on the air-cooled and water-cooled engines. Also, the brand is claiming it exceeds the API SL and JASO MA-2 certifications for engine protection.

Moreover, this synthetic engine oil promises to minimize the sound your engine is producing. Also, it helps to ensure the engine’s operation stays smooth and problem-free. For that, this item becomes ideal for track days and intense riding conditions.

Key Features:Specs:
★ Trizone Technology
★ API SL and JASO MA-2 certifications for engine protection
★ Ideal for track days and intense riding conditions 
★ Brand: Castrol
★ Model: 6116
★ Weight: 12.1 lbs. 


  • Extended change intervals
  • Noiseless engine operation
  • Features Trizone Technology


  • Not for new bicycles

Valvoline High Mileage Synthetic Blend Motor Oil

Valvoline provides a high mileage synthetic oil that features seal conditioners designed to revitalize old engine seals. Aside from that, it provides extra wear security and detergents that keep the older engines clean. 

It does the job by bonding and eliminating deposits and sludge. Antioxidants play the role of averting oil breakdown that helps stop engine clogging deposit and sludge formation. 

This synthetic oil offers an advanced formula that provides wear security additives, which hold up to extreme friction and temperatures under the most serious driving conditions. The viscosity grades available meet and even surpass the requisites set for GM dexos1 Gen. 2. 

Key Features:Specs:
★ Eliminates sludge and deposits
★ Gives additional wear protection
★ Comes with the advance formula
★ Brand: Valvoline
★ Model: 782253
★ Weight: 9 lbs. 


  • With seal conditioners
  • Provides more wear protection
  • Stops deposit formation and engine sludge


  • Some users report cap or jug leaks

Buying Guide and FAQs

What to Consider When Looking for the Best Synthetic Oil for Your Car?

Lubricating Power

Of all the benefits that you can get from using synthetic oil for your car, the biggest one is its power to generate lubrication between the crucial components of your vehicle. Yet, the synthetic oil you choose should be able to provide total protection for all the different mechanisms or components, too. Besides, it has to be capable of carrying these tasks for a long time without the need for frequent changes.

Viscosity Stability

Your preferred synthetic oil must stay at the ideal viscosity so that it can flow correctly and provide the greatest protection. Therefore, the superior synthetic oil can stay at the best thickness, nonetheless of the drops or rise in the temperature. 


The substances included in the formula of a synthetic oil make sure it can offer complete protection for the engine. At the same time, those substances help the synthetic oil can maintain all the excellent properties it has even after a long time. Hence, the good combination of additives in a high-quality synthetic oil is important. 

Fuel Efficiency

Synthetic oil also provides the utmost care for all the internal components of your car, such as the engine. That is another interesting benefit that your vehicle can reap from a good synthetic oil. It allows the vehicles to use up reduced fuel that makes your vehicle more economical.

The Benefits of Using a Synthetic Engine Oil

Extended Engine Life

The improved lubricating properties of a synthetic oil contribute a lot in extending and preserving your engine’s life. There have been a lot of companies that do torture testing in many ways. One of them is the Mobil 1 that put the 1990 BMW 325i on the rolling street for four years and 1,000,000 miles to show and prove the efficacy of its product. A 1M mile teardown proved that all the Bimmer’s engine internals stayed in factory specifications. 

Reduced Oil Changes

Engines that are running on synthetic oil are less likely to require frequent oil changes. Some European car manufacturers suggest oil change intervals after 18,000 miles when your car engine uses synthetic oil. Likewise, synthetic oil does not oxidize, break down, and enable sludge-formation as fast as how the regular motor oil does. 

Enhanced Fuel and Power Economy

The lower friction attributes of a synthetic engine oil mean the fuel economy and engine power were both enhanced. 

Enhanced Intense Temperature Protection

Synthetic oil for a car engine is very resistant against disintegration in extreme temperatures. This makes the oil beneficial for a turbocharged engine. 

Types of Motor Oils


Also called natural, this synthetic oil features a refined crude oil blended with additives. A lot of brands make it. Some of them are using friction modifiers to ensure lubrication. In a lot of cases, it is suggested for the classic motorcycles that need more lubricants. These synthetic oils are cheaper than others.


These motor oils are most famous in the market. They became extremely popular only in the last few years – at the time, technology got its way to enhance their capabilities. Synthetic engine oils are more durable as they do not disintegrate as easily and quickly as the natural oils. They range in the cost.


These engine oils contain the combination of a synthetic compound and advanced crude oil. It is the formula that has been engineered and designed to facilitate improved performance more than what you can find in the mineral products. 


What are the ingredients of synthetic oil?

Synthetic oil is made of 3 main ingredients. These are the performance additives, viscosity modifiers, and the base oils. These substances are carefully selected to make sure your car’s engine will have optimum performance and receive the best engine protection. 

Why does synthetic oil matter?

The best motor oil is the one that helps in keeping a car engine clean, which is key to ensure a tiptop performance. If gunk accumulated in your engine, it may lead to significant damages. Synthetic oil can keep your engine clean. It can also protect the engine against wear and tear. The performance is also improved. 

Why choose the best engine oil for your vehicle?

Oil serves as your car engine’s lifeblood. If a wrong kind is used, then your car engine is in danger. Blockages are formed due to the accumulated dirt that can result in engine seizures. By using synthetic oil, you know your car will run smoothly. 

When should I change engine oil?

You must change the motor oil and filter it before the given oil-change intervals period, which the car manufacturer has specified. The duration will depend on the distance reached or the time spent. Regular changing of engine oil will help in keeping your car engine in good condition. At the same time, it will give protection to the crucial components of your engine. 


Getting the best synthetic oil for your car doesn’t have to be too daunting. By knowing the most important details about your car and following the tips given above, you’re more likely to end up with a good buying decision.