The Best Synthetic Oil Review and Buyers Guide 2019

The Best Synthetic Oil Review and Buyers Guide 2019

Previously, there were handful choices of Synthetic Oils to choose among, but now there are a lot of types that may confuse you. The main goal of this article is helping you to choose the most excellent Synthetic Oil according to many factors.

Vehicles couldn’t move without high-quality motor oil. Ignoring this fact may cost you high maintenance costs or losing your engine. Using such ordinary oil may damage your vehicle. You should use the synthetic oil that got approval from certified or trustworthy manufacturers and of course SAE (the Society of Automotive Engineers). I mean the honest recommendations, not the commercial agreement between brands.

You may be interested in The 7 Best Synthetic Oil 2019

Is there a fixed criterion to know the best synthetic oil for your vehicle? Do you check the price or quality?

Actually, you can’t determine what the best is unless you make tests. You have to do a lot of tests, in fact. Scientific tests uncover the myth of commercials. So, it will be clear to you to know the wheat from the chaff. Here, I collect a package of The 7 Best Synthetic Oil products that are well tested and got more than 4 stars customer reviews on Amazon.

Mobil 1 94001 5W-30 Synthetic Motor Oil - 1 Quart (Pack of 6)

Product Description


  • Seal conditioner, helps prevent leaks
  • Advanced full synthetic formula
  • Extra anti-wear additive

Mobil 1 is a 106 years old company. This reputation deserves a certain level of quality. Think about such synthetic motor oil like Mobil 1 94001 5W-30 that offers these benefits:

  1. Mobil 1 5W-30 is the most wide-range uses: This synthetic oil is the most widespread synthetic oil. It works with all modern vehicles include pickup, turbocharged, small vans, passenger cars, trucks, and compact cars. It is preferred at all of the previous as a high-performance vehicle engine.
  2. Mobil 1 5W-30 Works in Any Environment and Weather: Mobil 1 has a versatility that works in both cold and hot atmosphere.
  3. It is excellent for General Motor Cars: General Motor recommends Mobil1 5W-30 for its vehicles in cold places in the United States. Mobil 1 has the best viscosity for GM cars.
  4. Long-time to change the Oil: According to Amazon’s customer reviews, Mobil 1 5W-30 synthetic oil doesn’t need to be changed as frequently as other types of synthetic motor oils.
  5. High protection from Suspend Solids: Are you worried about sludge? With Mobil 1, don’t worry about such a thing. It protects you from all harmful solids.
  6. It Saves Money: If you check this offer (link above) you will touch that it provides 1 Quart (Pack of 6), and this offer saves a lot of money.
  7. Amazon Customer Reviews: Mobil 1 5W-30 got 4.8 stars 596 customer reviews (86% of them are 5 stars evaluation).

Personally, I recommend this choice. Mobil’s reputation protects my vehicle and I trust Mobil’s quality. But although this high quality, it is not recommended for 2-cycle engines. This synthetic oil is perfect for cars only.

Also, it looks like that Mobil 1 5W-30 is better in a cold environment more than hot. Anyway, it’s acceptable compared with the wide range of use.

What We Liked

  • Most widespread synthetic oil, many people enjoy this one
  • Highly rated
  • Best formula for GM motors
  • It has extra anti-wear additives

What We Didn't Like

  • Better for colder environment
  • Doesn't work well with 2-cycle engines
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Case of 3)

Product Description


  • Provides 1.5% improved fuel economy performance compared to SAE 15W-40 oils
  • Triple Protection Plus formula combines fully synthetic base oils with advanced additives for...
  • Formulated with additive technology that protects against the effects of soot, dirt and other...
  • Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure
  • Suitable for diesel-powered vehicles from tractor/trailers to classic cars and heavy-duty diesel...

Shell is another deep-rooted company. Shell Rotella is the second in this list and I think it will be the second brand choice if you don’t like Mobil.

Shell Rotella T6 5W-40 is a high protection synthetic oil formula for engines. It designed basically to give your engine the utmost protection ever. It is the hard work synthetic oil that works under any condition (dusty, muddy, steep and cold environments).

So, we can summarize the benefits of Shell Rotella T6 5W-40 as follow:

  1. Extreme Temperatures Fighter: Rotella T6 works under the extremely high and low temperatures. Imagine a temperature as cold as -30F or hot as 400F with T6. Don’t worry, as I mentioned above: It is the hard work synthetic oil and the flow of the Shell oil isn’t affected by high/low temperature whatever it is.
  2. It can work well with some motorcycle models: Mobil1 doesn’t work completely with a motorcycle but Rotella T6 is compatible with some models. So, it’s recommended to check your motorcycle engine compatibility with Shell Rotella T6 oil before buying it.
  3. Shell Rotella T6 is Fully Synthetic Oil: It’s not made from carbon petroleum products. So, it is fully synthetic. This benefit reflects the flexibility of such synthetic oil, that it can be adjusted according to any condition without reducing the level of performance.

But the last note you should put in mind if you work in the field of construction. Shell Rotella T6 Synthetic Oil is not suitable for gear motors. T6 is a very thinner synthetic oil compared with the thickness that these motors require.

What We Liked

  • Great for extreme temperatures
  • Works well with motorcycles
  • Fully synthetic
  • It has oil additives to make it the best engine protection formula

What We Didn't Like

  • This synthetic oil isn't too thick which may run out too fast
Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 5 QT

Product Description


  • Seal conditioners rejuvenate aging engine seals to help stop and prevent oil leaks
  • Extra wear protection helps prevent future engine wear
  • Extra detergents keep older engines cleaner by bonding with and removing sludge and deposits
  • Anti-oxidants help prevent oil breakdown preventing engine-clogging sludge and deposit formation
  • For any product use or product technical questions call 1-800-TEAM-VAL

Comparing with the previous two giants, Valvoline is the third giant company with over 150 years of experience. So, this brand works hard to take her position in the synthetic oil market.

Mileage MaxLife deserves its name. Valvoline’s challenge is: For Engines Over 75,000 Miles. It’s easy to talk about your quality but Mileage is actually designed for high mileage engines.

Valvoline MaxLife is a synthetic blend oil. It provides high performance for a good number of miles for both new and rebuilt engines. Also, this blended oil has an extra wear protection formula that helps prevent engine wear.

Moreover, this synthetic blend oil is cheaper than previous options in this article. Valvoline MaxLife got 4.9 starts of customers review on Amazon (61 total) 87% of them are 5 stars rating.

What We Liked

  • Over 150 years of trusted experience
  • Great for driving for a good number of miles
  • Prevents engine wear greatly

What We Didn't Like

  • Packaging is not the best, may come leaking if you order online
Pennzoil Ultra Platinum Full Synthetic 10W-30 Motor Oil (1-Quart, Case of 6)

Product Description


  • Oils formulated with PurePlus Technology consistently have lower viscosity at low temperatures (-13...
  • Better viscosity control is achieved even under severe oxidative test conditions compared with using...
  • Drive on average an extra 550 miles per year
  • Helps protect engines from loss of power
  • Provides faster low temperature oil flow and protects in extreme heat; Certification: SN/GF-5

Pennzoil Ultra Platinum 10W-30 is a premium mix of oil that combines the high-performance additives with PurePlus synthetic oils (PurePlus Technology is raised by Pennzoil).

Pennzoil synthetic oil is designed basically to provide lower viscosity at extremely lower temperatures (-13F to -40F). This helps the engine to do less effort to pump the oil at different temperatures.

Pennzoil synthetic oil protects your vehicle engine because it prevents the loss of power, though it works perfectly in different hard conditions such as dusty, muddy road, heavy load, unpaved road, or even frequent short trips.

Finally, Pennzoil Ultra Platinum 10W-30 synthetic oil got 4.8 stars on Amazon customer reviews (417 customers), 88% of them are 5 stars for evaluation.

What We Liked

  • Great reviews
  • Great synthetic oil for extreme temperatures

What We Didn't Like

  • None that we have thus far
Castrol 03087 EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart

Product Description


  • 20,000 miles between drain intervals guaranteed*
  • Recommended for severe applications such as towing and hauling, high performance driving, frequent...
  • Engineered with fluid titanium technology that offers maximum strength under pressure
  • Reduces metal-to-metal contact across a range of different driving speeds. Protection: Proprietary...
  • Decreases engine deposit formation to help maximize engine response

Castrol EDGE Extended Performance is fully synthetic oil that is designed for hard work. This synthetic oil can work for 15,000 before the next change of oil.

Castrol EDGE Extended Performance has many benefits in both formation and performance as follow:

  1. High Protection Fully Synthetic Oil: Its titanium additive provides incomparable wear protection for your vehicle engine.
  2. Viscosity Stability: Whatever the force of your engine, Castrol EDGE viscosity is stable.
  3. The ability to deal with different environments: Castrol EDGE protects your engine in different conditions. It keeps its viscosity at extremely high and low temperature when driving in muddy or dusty environments.

Castrol 5W-30 got 4.7 stars on Amazon Customer Reviews (118 Customers), 88% of them are 5 stars. Also, Castrol 5W-30 is the synthetic oil formula that is recommended by BMW (Customer review).

What We Liked

  • Excellent wear protection for high mileage
  • This Castrol 5W-30 synthetic oil is great for extreme temperatures

What We Didn't Like

  • Packaging may come damaged
Royal Purple ROY11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 qt.

Product Description


  • Royal Purple Located In Porter, Texas, Produces A Wide Range Of High Performance Lubricants For...
  • Royal Purple's Founder John Williams Was A Pioneer In The Development Of High Performance Synthetic...
  • Through Creativity, Productivity And Innovation - This Brand Continues To Develop The Finest...

I think Royal Purple 5W-30 has a distinctive feature that is not in the others; it is completely made in the USA (Actually, 95% and 5% is out of USA raw material).

Royal Purple SAE 5W-30 has another distinctive feature; it currently ranks Number 11 on Amazon’s online reviews made by customers.

Royal Purple SAE 5W-30 benefits:

  1. Efficient for extending engine life: The high quality of such synthetic oil decreases the friction between metals in your engine. This reduces the consumption of fuel and of course will maximize your vehicle engine efficiency and save it for a long time.
  2. It is the best synthetic oil for older engines: Old engines have a good chance with Royal Purple SAE 5W-30. This requires the old engine be in excellent condition and upgrade it in two short intervals (3,000 miles each).
  3. It is compatible with any synthetic oil: This feature is unique. It enables you to switch to Royal Purple without specific procedures.

Royal Purple SAE 5W-30 is the highly recommended synthetic oil on Amazon by customers with rank No. 11 and 4.8 stars evaluation.

What We Liked

  • Great for extending engine life and health
  • Great for older engines

What We Didn't Like

  • This synthetic oil runs out quickly
MAG1 61794-pk6 Full Synthetic 0W-20 SN Motor Oil - 32 oz. (Pack of 6)

Product Description


  • Formulated with FMX friction modifiers to reduce engine wear by 56 percent versus standard motor...
  • Formulated with High Phos Retention 2DP for extended weat performance
  • Leading OEM viscosity grade for fuel economy
  • Excellent resistance to cold start wear
  • Meets all Ford, Honda, Chrysler and Toyota subzero specifications

MAG1 Full Synthetic Oil is not made from crude oil. It reduces the engine wear by 56% versus standard oil meeting ILSAC GF-4/SN.

MAG1 is highly recommended for Chrysler, Honda, Ford, and Toyota cars, and meets their subzero specifications.

This synthetic oil provides the best resistance to wear at different temperatures (cold and hot). MAG1 comes with ZDDP additives that protect your vehicle engine.

MAG1 got 4.6 stars on customer reviews on Amazon (94 customers) and 80% of them are 5 stars.

What We Liked

  • This synthetic oil is made for many vehicle makers
  • Reduces wear and tear

What We Didn't Like

  • Maybe not worth the price

Well, I finished my review of The 7 Best Synthetic Oils that are currently popular in the American Market. This review will help you to make the best  choice from different types and brands of oil products in this market. Read it again, and choose the suitable synthetic oil for your engine. All are offered at a good market price.

If you recommend a particular type and brand of Synthetic oil (that is not on this list), please tell us about it to add in this guide.

Other Posts You Might Like

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.