7 Best Car Engine Oils to Buy in 2021 [Reviewed]

 I hope you agree with me when I say this:

 Fuel might be food for your vehicle, but Engine oils for cars are the ultimate life support 

That being said,  if you don’t opt for quality car oils, engine longevity & reliability cannot be expected. But when it comes to engine oils, you get an ample amount of options to choose from, which can lead you to scratch your head & opt for the wrong one for your car.

So, keeping that in mind, I researched & came up with a list of the best engine oils for your car. In this list, you’ll find performance engine oil from the top 10 engine oil brands in the world. Moreover, for your convenience, I have included a FAQ at the end to help you get the most out of this car oil guide.

So, without further ado, let’s begin our best engine oil guide

Best Car Engine Oils in 2021:

Here are my top picks for the best car engine oils in 2021:

Engine OilsRatingPrice
Castrol Edge 
10/10 (Editor's Choice)
Check Price
Amazon Basics Motor Oil10/10
Check Price
Pennzoil Platinum Fully Synthetic9/10
Check Price
Liqui Moly 2332 Leichtlauf9/10
Check Price
Shell Rotella T6 Fully Synthetic9/10
Check Price
Liqui Moly Synthoil Race Tech9/10
Check Price
Mobil 1 Extended Performance8/10
Check Price

1. Castrol Edge Advanced Full Synthetic Motor Oil

Why We Love It?

  • Powered by Fluid Titanium Technology
  • Available from 5W-20 to 5W- 60 Viscosity range
  • Over 15,000 miles range
Fully syntheticCan increase oil consumption in old cars
Provides Smoother Engine performance
Budget-Friendly Price

2. Amazon Basics Full Synthetic Motor Oil

Why We Love It?

  • Available in Synthetic & Conventional Varients
  • Very affordable 
  • Available in nearly every Viscosity 
Endorsed by Scotty KilmerBad oil level markings on old jugs
Synthetic priced like Conventional
Highly rated

3. Pennzoil Platinum Fully Synthetic

Why We Love It?

  • Increases Engine Smoothness & Performance
  • Comes with Superior performance additives
  • Amazing Engine cleaning ability
Engine Noise ReductionLeakage issues with quart containers
Made with Natural Gas
Very Few Impurities

4. Liqui Moly 2332 Leichtlauf High Tech

Why We Love It?

  • Keep your Engine Squeaky clean
  • Greatly reduces engine oil consumption
  • Retains its original color even after 6k miles
100% Fully syntheticA bit expensive
Improves mileage

5. Shell Rotella T6 Fully Synthetic

Why We Love It?

  • Improved Fuel Economy
  • Reduces oil consumption with turbo engines
  • Loved by Motorcyclists
Very Affordable PricingBad Packaging by Amazon
Reduces Engine Maintenance cost
Quick startup in cold weather

6. Liqui Moly 2024 Synthoil Race Tech GT1

Why We Love It?

  • Recommended Oil for BMW M series
  • Revives performance on old engines
  • Commendable Engine cleaning
Lubricates well even at high tempsExpensive
Reduces oil consumption
Provides high thermal stability

7. Mobil 1 Extended Performance Full Synthetic Motor

Why We Love It?

  • Guarantees 20,000 miles of protection
  • Synthetic blend keeps your engine clean  & smooth
  • Prevents deposits & sludge build-up
Provides Smoother PerformanceCan burn easily
Lasts longer than most oils

Also, check out our article on the 5 Best Gas Mileage Trucks for under $5000!


In this article, we reviewed some of the top oils for cars, and since they are a basic necessity of car maintenance. Opting for quality car engine oils is crucial. Cars can last way longer than even their promised lifespan if maintained properly & to begin with, the finest car oil is the first place to start at.

And after reading this guide, We hope that you’ll find your pick out of these finest brands oil for cars. But before you go, check out our FAQ box to get more questions regarding car oil answered.

Related Material

Want to learn more about the behavior of viscosity of engine oils? Check out this detailed resource:


How to find out which oil viscosity does your car takes?

There are two easy ways to find out about the recommended viscosity for your engine oils. First, open up your hood check the oil cap. Usually, all the details there are mentioned by manufacturers. However, just in case it’s not present, then refer to your owner manual in the maintenance section. For more info, refer to this resource.

What is the best oil for your car?

First, you need to find out which car your oil takes by following the above-mentioned method & then go through this article to get your answer on what is the best motor oil for your car. Just a few things to note, use the correct viscosity do not use thicker ones since new engines are not designed for that. Even if your car burns a bit of oil it’s better to use the recommended one instead of upgrading it to a thicker one.

What is the most optimal change interval for engine oils?

Although there are oils that guarantees over 20k miles change interval, however, I don’t recommend it. It’s better to change even the long-lasting oils at least once a year or before 10k miles. Since oil changing is relatively cheaper, and engines are not. If you’re using a conventional oil I recommend a max of 3k to 4k miles, however, with a good synthetic motor oil brand you can extend this to 10k.

How to change oil in your car?

Changing oil is not a hard job to perform, so for your convenience here is an easy to understand video guide by Chris fix:

 Information-wise I enlightened you with many details, now it’s time for you to select the finest engine oil & give your car a new life. 

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