Best 5W30 Synthetic Oil To Buy In 2020? (Top 5 Reviews and Comparison)

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Best 5W30 Synthetic Oil

What is the best 5w30 synthetic oil in the market?

Easy to answer if you ask us.

Here are Gear4wheels' top 5 picks for the best synthetic oils on this popular SAE grade, commonly used on medium sized petrol engines and hybrid vehicles.

Let's jump right to this shall we?

5w30 Synthetic Oil Comparison Chart.

IMAGE PRODUCT Industry Standards
Valvoline SynPower review 1. Valvoline SynPower
  • Made in America
  • 100% Synthetic Oil
  • Superior cold-start performance and protection
Industry Standards: GM dexos 1 Gen 2 VIEW ON AMAZON
Liqui Moly Longtime High Tech review 2. Liqui Moly Longtime High Tech
  • Fully synthetic oil
  • German engineered
  • Top-of-the-line synthetic oil
Industry Standards: ACEA C3, API SN, API CF, BMW Longlife-04, MB-Freigabe 229.51, VW 502 00, VW 505 00, VW 505 01, ACEA A3, ACEA B4, Fiat 9.55535-S3, Ford WSS-M2C 917-A, MB 229.31 VIEW ON AMAZON
Pennzoil Ultra Platinum review 3. Pennzoil Ultra Platinum
  • All synthetic base oil
  • Proven improved fuel economy
  • More value for the cost
Industry Standards: Chrysler MS-6395, Ford WSS-M2C929-A, Ford WSS-m2C946-A, GM 6094, 4781M, Dexos 1(GBD1d1218014), Honda/Acura HT0-06, ACEA, A5/B5, A1,B VIEW ON AMAZON
Castrol EDGE Extended Performance review 4. Castrol EDGE Extended Performance
  • Superior cleaning and long haul protection
  • Sets the industry standard for synthetic motor oil performance
  • Best possible cleaning and protection additives money can buy
Industry Standards: BMW LL-01, Mercedes-Benz 229.5 and 229.3, Porsche A40, VW 505.00 and 502.00, Ford WSS-M2C937-A, PSA B71 2296 and it is API SN/CF, ACEA A3, ACEA B3, ACEA B4, A3/B4, API SN, ILSAC GF-5, ACEA A1/B, Meets Ford WSS-M2C929-A, Ford WSS-M2C946-A, Honda HTO-06, Meets engine test requirements of Chrysler MS-6395 VIEW ON AMAZON
Royal Purple High Performance review 5. Royal Purple High Performance
  • 100% Synthetic oil
  • Exceptional all around performance regardless of your car’s make or engine type
  • Equally effective in performance use and everyday driving
Industry Standards: ILSAC GF-5, DEXOS 1, Many more… VIEW ON AMAZON

Top 5 Best 5w30 Synthetic Oils In 2019

Valvoline maintains extremely high standards for their flagship synthetic 5W30 oil, adding superior detergents and protectants to their Group IV stock base oils.

Industry Specifications Met:

  • GM dexos 1 Gen 2

When things get hot in your engine, your valves and pistons are fully protected even with the cold-start friendly lower viscosity rating of a 5W30 blend.

With the industry demand increasing for high-efficiency motor oil and more and more engines requiring specialized synthetic only oil, Synpower easily meets the demanding requirements of many manufacturers’ more stringent lubrication requirements.


Valvoline SynPower review

Lower viscosity also means that if you are running a turbocharger or supercharger on your engine, your oil can withstand the higher temperature extremes that come with high performance parts, too.

Best of all, the blend of additives ensures that your engine stays sludge and varnish free for vehicles under 125,000 miles, improving or maintaining your fuel efficiency and the overall life expectancy of your motor.

While this is an excellent choice for newer vehicles with less than 125,000 miles on the odometer, older cars will most likely benefit from the high mileage blend of Synpower oils due to their superior detergent additives and protectants that are not present in the standard Synpower blend.

Always follow manufacturer recommendations as described on the container when purchasing synthetic oil for your car.



Any experienced mechanic knows the value of Liqui Moly grease when it comes to keeping your car’s body and suspension functioning smoothly, and their synthetic 5W30 provides similar high performance when it comes to keeping your motor running at peak efficiency even under the most extreme conditions.

Industry Specifications Met:

  • ACEA C3
  • API SN
  • API CF
  • BMW Longlife-04
  • MB-Freigabe 229.51
  • VW 502 00
  • VW 505 00
  • VW 505 01
  • ACEA A3
  • ACEA B4
  • Fiat 9.55535-S3
  • Ford WSS-M2C 917-A
  • MB 229.31


Liqui Moly Longtime High Tech review

High-performance designers like Porsche, BMW, and other German automakers recommend Liqui Moly for use in their vehicles due to its superior performance under the extreme stress of high performance motors in some of the world’s fastest and best engineered cars.

While it may be a bit more on the pricier end of the spectrum for engine oil, it definitely provides the quality sludge and varnish protection that a high-end performance engine demands over time regardless of whether or not you push it to the limit on a regular basis.

This is definitely a must-buy for fans of German turbo or supercharged motors as well, especially given the extremes to which they push the multi-valve engine designs on modern German automobiles.



A high end premium product that offers complete engine protection for your car, Pennzoil Ultra Platinum 5W-30 is the motor oil of the future for numerous makes and models of engine.

Industry Specifications Met:

  • Chrysler MS-6395
  • Ford WSS-M2C929-A
  • Ford WSS-m2C946-A
  • GM 6094, 4781M, Dexos 1(GBD1d1218014)
  • Honda/Acura HT0-06
  • ACEA, A5/B5, A1,B


Pennzoil Ultra Platinum review

Thanks to the Pennzoil revolutionary production processes, the additives and detergents in this fully synthetic oil clean and protect your motor better than almost any other high performance motor oil on the market today.

Pennzoil stands behind their product 100 percent too, claiming it keeps pistons 65 percent cleaner, adds an extra 550 miles on average compared to engines not cleaned and maintained with their product, and helps guard against a loss of horsepower over the lifetime of your vehicle.

Also, thanks to its significantly lower viscosity, this synthetic oil also offers some of the best available friction protection money can buy.

Most important of all for gearheads and tuners though, this synthetic oil is an excellent choice for use in turbo and supercharged motors, offering the high temperature extreme performance such motors demand of their motor oil. All in all, Pennzoil makes a fantastic product with few (if any) drawbacks.



Beloved of racing team mechanics and technicians and regular auto shops alike, Castrol’s EDGE Full Synthetic Extended Performance provides the best possible protection for your motor whether you change every 3,000 miles or every 10,000.

Industry Specifications Met:

  • BMW LL-01
  • Mercedes-Benz 229.5 and 229.3
  • Porsche A40
  • VW 505.00 and 502.00
  • Ford WSS-M2C937-A
  • PSA B71 2296 and it is API SN/CF
  • ACEA A3
  • ACEA B3
  • ACEA B4
  • A3/B4
  • API SN
  • ILSAC GF-5
  • ACEA A1/B
  • Meets Ford WSS-M2C929-A
  • Ford WSS-M2C946-A
  • Honda HTO-06
  • Meets engine test requirements of Chrysler MS-6395


Castrol EDGE Extended Performance review

Castrol puts so much faith in their premium synthetic product that they actually guarantee it for up to 15,000 miles between oil changes.

As one of the world’s leading manufacturers of racing performance motor lubricants, that is saying quite a lot.

If you do a lot of towing and hauling over long distances or your vehicle spends long periods of time idling or in commuter traffic, this is the synthetic 5W30 you want in your car.

Castrol’s highly specialized blend of additives in their Fluid Titanium protectant provides 5 times the performance of other synthetic motor oils when it comes to keeping your engine safe and operating at peak efficiency even over extended periods of time.

It also offers the best possible sludge and varnish deposit protection money can buy, and numerous professional and home mechanics swear by this stuff when it comes to reducing motor noise and cleaning out older engines as well.

As the 5-liter bottle would indicate, this is truly the gold standard of synthetic motor oils, and Castrol has the field-tested performance to back it up.



For the absolute best in premium synthetic oil performance, experts always turn to Royal Purple.

Industry Specifications Met:

  • ILSAC GF-5
  • DEXOS 1
  • Many more…


Royal Purple High Performance review

This all synthetic oil cleans, protects, and performs like no other synthetic blend on the market.

Popular with racing professional teams and high performance amateur mechanics as well, Royal Purple definitely sets high standards for their low viscosity synthetic oils, and their track record for maintaining high performance under duress even in the most demanding conditions remains untarnished for decades

In terms of keeping your pistons, valves, and other engine components valve and sludge free, Royal Purple 5W30 coats all exposed engine components in a fine microfilm of highly specialized lubricant, keeping all moving parts functioning smoothly even as your oil levels diminish over time with the extreme heat of warm weather driving and turbo or supercharged engine kits.

Best of all, this low viscosity synthetic oil works great in older cars as well as brand new models, helping to preserve and extend the life of your classic thanks to its unique proprietary blend of sludge, varnish, and deposit removers.




For those where price isn't really an issue, but performance is key, we certainly recomend Liqui Moli. For everyone else, Valvoline really is the way to go.

Note we haven't listed any Amsoil products in this list. We don't particularly dislike Amsoil but they just don't qualify for a top 5.

Top 10 perhaps.

But who's got the time to read a long ass list of 10 of best 5w30 synthetic oils anyway!

5 thoughts on “Best 5W30 Synthetic Oil To Buy In 2020? (Top 5 Reviews and Comparison)”

  1. I dnt think they even know the best oil really lol not one of theses are even close to amsoil or idemitsu oil all five they posted was just basic cheap oil

  2. At least I can to go the Amsoil website and download the oil specifications for their OE, XL, and Signature oils. It’s been more difficult getting this information on other brands. Plus, the youtuber “Project Farm” does extensive testing on many oils. Amsoil may not be the least expensive, but I don’t doubt the quality.


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