Over the years, engine oils went through several iterations in which they transformed from a brown goo that was just refined from crude oil to meticulously engineered formulated lubricants. Over those upgrades, the one that made engine oils leap the most is 0W40.
Now, with the different brands offering their different takes on the type of oil, it gets a little troublesome to choose the best 0W40 oil.
But as you have found us, you will not have to worry anymore about that. We will guide you through, and hopefully, by the end, you will be able to choose one of the best ones for your vehicle.
Table of Contents
Why 0W40 Oil?
Among all the types of synthetic oils that are available in the market, 0W40 are the ones that operate exceptionally well under a heavy load.
That means the overall performance will not deteriorate that much when the vehicle is at the maximum speed.
Alongside that, these oils can handle extreme heat conditions considerably well.
Starting the engines in coldest winter and running for a prolonged time in summer will not be any problem at all.
It can also clean the oil deposits from the engine quite efficiently. That means the oil inside will flow from piston to piston without any obstructions.
Lastly, these oils can significantly reduce the metal to metal contact while the engine is combusting.
With that, these will enhance the overall performance and will extend the lifespan.
Best 0W40 Oil Review
Not all the options that are available in the market will be able to offer you the best performance and value proposition.
To help you get the best one for your money, we went through the most popular ones and picked only the ones that offer excellent overall performance. These are:
Mobil 1 (120760) 0W-40 Motor Oil
When it comes to meeting all the expectations of OEM car manufactures and industries, hardly a few can excel the way this oil from Mobil 1 can.
To start with, it comes packed with an enhanced formula that improves the frictional properties of the fuel.
With that enhancement, it offers a significant bump in the overall fuel economy. That means these are one of the cost-efficient options that are out there.
Alongside that, the advanced formula also lets it withstand extreme temperatures easily.
Even the harshest winter with a bare minimum temperature, you will not have any trouble at all in the case of starting the engine. It will also protect the engine in the heat waves of summer days.
Other than that, it creates a strong fuel film on the top of the crucial components to protect them from occasional wear and damages. This film will extend the lifespan of your engine substantially.
Lastly, the advanced formula also aids in keeping the engine clean. It will clear out the old deposits and maintain a steady flow of oil inside the engine.
With this, you are going to get an enhanced performance out of your vehicle and will be able to reach top speed at ease.
PROS
CONS
Latest Guide: 0W30 vs 10W30 Motor Oil
Castrol 06518 EDGE 0W-40 A3/B4 Advanced Full Synthetic Motor Oil
Among all the options that are available in the market, the ones that can create a sturdy fuel film around the crucial components will be able to offer better performance under pressure. A perfect example of such oil would be this one that is from Castrol.
First of all, it can create an oil film around the essential parts of the engine that is about thirty percent stronger than most of the other options that are out there.
With this, it will not only be able to protect the components from damages but also will be able to reduce the power-robbing friction.
Alongside that, because of the unique blend that it comes featured with, it will be able to protect the engine better in harsh temperatures.
It can provide about ten times stronger protection against high temperatures and hinders the oil from thickening. That means the performance will not deteriorate even when the car is under pressure.
Other than that, the fuel deposit reduction capability of the oil is quite efficient too.
It can clean out the old fuel gunk and reduces any further deposit. With this, it will be able to ensure a smooth flow of oil inside the engine.
That means it will be more efficient and will be able to improve the fuel economy substantially.
PROS
CONS
Motul 8100 X-Max 0W40 Engine Oil
While browsing through all the oils that are available in the market, you might want something that can enhance the overall lifespan of your engine. In that case, you should have a look into this one.
Unlike most of the 0W40 oils that are available, it comes packed with an enhanced formula that protects the engine from wears and damages.
It reduces the metal to metal contact substantially, which ensures that the pistons remain in good condition and can operate for a prolonged time without any issues at all.
Other than that, the enhanced formula also aids in keeping the engine clean.
It reduces the overall deposits from the engine and ensures a steady flow of oil inside the engine.
The oil also features improved frictional properties. It does not only increase the overall performance of the engine but also improves the fuel economy substantially. You will be able to get the most out of your engine with this in it.
Lastly, it provides adequate protection that is needed to withstand extremely low temperatures.
With that, the engine will be able to offer maximum performance in the harshest winters and will let the engine start instantaneously.
PROS
CONS
Related Guide: 0W-30 or 0W40 Motor Oil
What to Look for before Buying
By now, you are probably thrilled to get your hands on your next oil for the engine.
But before you make a purchase, there are some factors that you should keep in mind.
These will help you in making an efficient decision by letting you scrutinize all the options properly. They are:
Fuel Economy
The first thing that you should consider before investing money in one of the oils is the fuel economy.
MPG is the unit through which fuel economy is usually measured. In this case, the higher the MPG will be, the more efficient the oils are going to be.
And the more efficient an oil is, the more cost-effective it will be.
Protection
One of the main reasons behind opting for highly engineered oils is the protection that it offers.
In the case of 0W40 oils, the ones that can create a strong film around the essential components of the engine will be able to offer better protection against wears.
Besides that, the protection that is offered by the oils in extreme temperatures should also be taken into consideration.
The ones that can withstand extreme conditions will be able to provide excellent performance in harsh weather conditions.
Cleaning Capabilities
Lastly, you should also put the cleaning capabilities of the engines into your consideration.
The ones that can clean the deposits of oil efficiently will be able to offer a steady flow inside the engine. As a result, the performance will get enhanced substantially.
Frequently Asked Questions (FAQs)
Here we have the most commonly asked queries regarding the best 0W40 oils:
The numbers on the type of oil generally refer to the weight and thickness or viscosity of the oil. With the rise and drop of temperature, the oil gets gradually thicker.
In the case of 0W40, the first numbers that are 0W refer to the viscosity of the oil in low temperatures. On the other hand, 40 refers to the thickness of the oil when the engine starts combusting.
Generally, the PAO-8, PAO-6, and PAO-4 are used as a base for 0W40. These base oils are added with additives such as antioxidants and detergent to form an enhanced formula.
No, you will not require any sort of particulate filters for enjoying the performance that 0W40 has to offer.
The heat resistivity characteristics that 0W40 comes packed with do not only make the oil good for winter but also summer too.
With this, the performance will not deteriorate that much in heated up summer days.
In cold winter, 0W40 is a lot thinner than 5W40. On the other hand, in summer, the thickness remains about the same.
Final Words
With that, we hope that we were able to narrow down the options to a certain extent that it is now easier for you to choose the best 0W40 oil for your vehicle.
We would like to conclude here by wishing you good luck and hoping that your engine performs optimally throughout its lifespan.