Best Synthetic Oil with Review Guide

(Last Updated On: June 17, 2018)

The transportation industry is one among the most developed sectors in the modern mechanical world. From the nut to engine everything had at least a dozen updates since its beginning.  Technically the best synthetic oil is an artificial lubricant oil that is manufactured from modified distillates of petroleum and other chemical compounds. Often synthetic oil is preferred over conventional lubricant oil in order for better thermal tolerance, long lasting lubrication and metal friendly. There are many more factors that would incline you to choose the synthetic oil over ordinary motor oil, one among them is that the synthetic oil is highly refined and broken down into basic molecules such that it is impurity free and can be custom made for various types of engines. Though the synthetic oil is costly, many would still prefer it over the conventional mineral oil which has average performance compared to synthetic version. Most top brands in the motor oil industry has both versions, leaving the choice to customers with only money as the bridling factor. With all this being said, let us surf the reviews and rating for the top synthetic oil for cars.

Below are top 10 best motor oil that we compiled based on market trend.

1. Valvoline 5W-30 MaxLife High Mileage Motor Oil

Nobody would have any doubt over this brand. Valvoline, with years of industry experience, their motor oil is one among the most trusted and preferred choice in the market. 5W-30 MaxLife is a high grade best synthetic oil for your engines that comes in a dozen of package choices ranging from 1 quart to 5 quarts (1 quart = 0.946 Liters) with varying number of packs. The best thing about this engine oil is that it isn’t simply a lubricant oil alone, rather it would do a multitude of jobs like sealing the engine, conditioning the metal parts etc. With Valvoline 5W-30 MaxLife inside the engine, the greatest advantage is- ‘no oil leaks’! Many customers have reported to experience diminishing wear and tear of moving parts when compared with their previous motor oil. With just $17 for a 5quart can, Valvoline 5W-30 MaxLife is a great deal. The temperature tolerance of the oil is as expected or in par with companies claim. With an average of 2~4 months of peak performance for daily users, it is surely the best 5w30 synthetic oil in the market.


  • Extra wear and tear protection
  • Good temperature tolerance
  • Budget friendly pricing
  • Prevents oil leaks
  • Mileage changes are visible after changing oil for the first time


  • Price variation across markets

2. Mobil 1 120760 Synthetic Motor Oil

If you are concerned about price point, then this might be a little hard for you.  But rather if you are looking for the best motor oil, then you got the best itself. Mobil 1 120760 Synthetic Motor Oil 0W-40 is a great choice if you have left the service period standards and looking for some out of prescription monsters. With a 5 quarts can costing around $36.86, it is pretty heavy for an average pocket, however, performance wise there is no doubt about the quality. Mobil 1 120760 Synthetic Motor Oil 0W-40 meets all industry standards for OEM and it’s cleansing action provides aid to clean dirty engines on the go. With a 0W spec, the oil is best at lower temperatures giving ample lubrication for rapid engine action. Oil has enhanced frictional properties that will ensure improved fuel efficiency compared to other motor oils.  In order to get a wider perspective view about the Mobil 1 120760, Synthetic Motor Oil 0W-40 let us divide and go through its pros and cons


  • Improved mileage after use
  • Get temperature tolerance at both high and lower temperature
  • Cleansing action
  • Seals and prevent oil leakage
  • Works better with air-cooled engines
  • Greater wear and tear protection


  • High price
  • Engine compatibility issues for some brands

3. Mobil 1 120764 Motor Oil

Mobil 1 has already been on our list with their synthetic oil 0w20, but that is not all of it. They have more products in line to stand in the line as one among the best engine oil available in the market. Mobil 1 120764 Synthetic Motor Oil 5W-30 is meant for cars running on moderate temperature range, but still, it is a great toss for almost all petrol engines. Full synthetic, this is undoubtedly one of top synthetic motor oil you can use for your vehicles. Looking from the price point of view, a 5-quart container might cost anywhere around $20~$25, which when compared with others in market ain’t a bad bid considering the extra perks that comes with the product other than lubrication. Sludge buster is one feature of this synthetic oil along with wear and tear protection that is featured in almost all other products. But one thing many would vouch for is the thermal and oxidation stability of Mobil 1 products and 120764 oil isn’t any different. Has all features like mileage enhancement, sealing, cold weather mixing etc. making it one of the best choices.


  • Sludge Buster technology
  • Seals engine to prevent leakage
  • Thermal stability in a wide range of temperatures
  • Enhance fuel economy
  • Stays in action for an extended period of time
  • Pricing is competitive


  • Container design isn’t great and many online orders report leakage

4. Mobil 1 120758 Advanced Full Synthetic Oil

Once again the market leadership is waved with a Mobil 1 product, this time it’s a much better version of previous ones. They have their product in all viscosity range and the one among the best synthetic oil that most would prefer is a 0W-20 oil due it’s high-level and low-level performance in both ranges of temperature. 120758 Advanced Full Synthetic Motor Oil has low viscosity meaning it will perform better no matter what the temperature is. Mobil1 has a special synthetic formula for this product which helps improving engine performance and fuel efficiency by about 2 percent visible. With a reported amazing thermal and oxidation stability, undoubtedly the oil will lubricate your engine for an extended period of time compared to other synthetic oil. However, since the viscosity is lower (which is a good thing when comes to engine oils) the price is comparatively higher. A 5-quart oil will cost anywhere between $25 ~$39, but if you are lucky you could grab an online deal for as low as $22.


  • Lower viscosity, better performance
  • Very great thermal and oxidation stability
  • Improves overall engine performance
  • Fuel economy has reportedly improved
  • Compatible with almost all petrol car engines
  • Good to use in colder climate


  • High price fluctuates

5. Castrol 03083 EDGE 5W-20 Synthetic Motor Oil

If you need something similar to a 0w 20 synthetic motor oil and can’t find the Mobil1 for $25 range, then Castrol is the best automotive oil you have got. Or rather it is a great choice if you can grab a 5 quart can for $23. With an MRP of $33.43 online, the pricing is decent, however, there are several online sites from where you can get the same for under $25. Talking about the oil performance, it is like a hot knife through butter. Most of the Castrol 03083 EDGE 5W-20 Synthetic Motor Oil customers highly satisfied with the performance of oil inside their engine. Sludge busting is one great feature with this oil along with sealing and better priming. No matter what the temperature is out there, Castrol 5W-20 is one best motor oil you can go with. As every product, it is thermally and oxidatively fit and meets the demand of almost all petrol engines.


  • Improved mileage after use
  • Sludge busting
  • Titanium additive to improve performance
  • Decent pricing
  • Low-temperature performance is amazing


  • The can ain’t got a retractable nozzle
  • Doesn’t last very long

6. Pennzoil 550022689 5W-30 Platinum Full Synthetic Motor Oil

Pennzoil might be a perfect competitor for Mobil 1, due it’s similarities in the performance. However when the price point is considered this oil brand has to work more on the making it competitive. With 1 quart ranging from $6.47 ~ $9.49, compared to $4.4 ~ $7.6 /quart Mobil 1 makes it tougher for Pennzoil. If the price doesn’t concern you, then you have got the best motor oil in hand. This fully synthetic oil has all right proportions of chemical mixtures to enhance the engine performance along with lubricating the moving parts under all sorts of conditions. The sludge cleansing formulation of the oil allows it to clean the engine along with lubrication. The oil performance can be felt in the very first use especially if you are changing from conventional motor oil to Pennzoil 550022689 5W-30 Platinum Full Synthetic Motor Oil. The oil significantly found to reduce the wear and tear to moving parts when compared to car engines using semi-synthetic or conventional oil.


  • Better thermal efficiency
  • Suitable for colder weather
  • Works great on turbo cars
  • Improved mileage after use
  • Reduce wear and tear
  • Sludge Buster
  • Cleansing action of the oil keeps the engine clean


  • Slightly overpriced

7. Pennzoil 550038221 Platinum Motor Oil

One more Pennzoil oil product on the top ten list, implying the brand has got highest synthetic oil rating in the product line. Priced somewhat similar to Pennzoil 550022689, this product comes in a 5-quart jug compared to the other one which is available only in 1-quart container. From the customer reviews, it was found that Pennzoil 550022689 had much superior cleansing action compared to that of 550038221, other than that performance wise things are much similar to both products. When the price is taken into account, still the Pennzoil seems to bit heavy more many pockets, with 5-quart jug priced around $30~ $38 in the online stores. A significant improvement in the fuel economy after use has been reported by several customers in an online store, however, the cold weather performance of Pennzoil 550038221 is slightly inferior to Pennzoil 550022689.


  • Sludge Buster
  • Works great on natural gas engines
  • Gives smooth performance through a range of temperature
  • An extra 500~1000 miles is guaranteed with Pennzoil compared to conventional oils
  • Available in all leading automotive stores across nation


  • Slightly overpriced
  • No 1 quart can available

8. Castrol 06249 EDGE 5W-40 SPT Synthetic Oil

This might be way out of your budget if you are looking this for a motorbike. Priced around $50 for a pack of 1-quart jug, this a definitely a great deal for car owners. Price per quart is cheap and competitive if you can grab this for a lightening offer. As always Castrol oils focus on cleansing and sludge busting, thereby giving superior performance to engines. Most of the synthetic oils nowadays are highly optimized to clean the parts of the engine by removing dirt, which nothing better than Castrol would do. Thermal stability is amazing with this product, however, the oxidation stability is slightly off the chart when compared to other market competitors and in-house Castrol 03083 EDGE 5W-20, which doesn’t matter when it comes to the performance of the engine. Mainly Audi drivers prefer this among the synthetic motor brands, but it is not limited to one brand, but Benz, Volkswagen etc. use this.  The thermal tolerance of this product reduces the engine wear over time, especially the Castrol oil is used for an extended period of time. Here is a short pros/ cons list for a quick view:


  • Reduced volatility and enhanced performance
  • Good thermal stability
  • Decent pricing
  • Great cleansing action
  • All weather oil


  • Available only in 1-quart jugs
  • Hard to find offline

9. Royal Purple 01530 High Performance Full Synthetic Motor Oil

Royal purple might be your greatest choice after service period. Price is comparably okay, but little higher and you might even find it for offer price anywhere from $25 ~$30 for the 5-quart jug. The 1 quart can cost around $6~ $9, but the offer pricing might amaze you even better. Now talking the performance side, this product is one of the long-lasting synthetic oils in the market giving a performance for 9k miles at least before you would change the oil. Value for money is highly appreciated for this product and wear & tear protection is on par with other competitors out there on the market. When it comes to mileage part, nothing would perform as better as Royal Purple 01530. With an improved 2%~10 % mileage after use Royal Purple 01530 is a full synthetic oil.


  • Good thermal and oxidation stability
  • 2%~10% improved mileage
  • Superior wear and tear protection than Valvoline and Pennzoil
  • Value for money
  • Lasts long than competitors


  • Works better only with big engines
  • Overpriced than brands

10. MAG1 62836-6PK  Full Synthetic European Formula Engine Oil

Say you are looking for a great oil at a cheap price, then MAG1 62836-6PK FMX SAE 5W-40 is made simply for you. You can get a 1-quart pack of 6 for around $28~ $36, which means you pay around $5~$6/ quart which is comparably lower to that of competitors. As per Mag 1 synthetic oil review, it has an impressive formulation that protects engines at higher rpm thereby ensuring longer life. Wear and tear protection is best and sludge cleansing action is similar to that of other market leaders. This best synthetic motor oil  is known to satisfy all industry standards and specifications. 5W-40 oil is perfect for almost conditions and suits smaller engines too. The value for money is what most would praise about this engine. For a better idea let us go through the pros and cons of this product


  • Lubrication doesn’t wear off at higher rpm
  • Superior cleansing action
  • Value for money
  • Improve fuel economy
  • Holds for at least 9~12k miles
  • Good thermal stability


  • Unimpressive bottle design

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