Best Oil For Subaru WRX 2022 – Reviews & Buyer’s Guide

If you want your Subaru to operate in the best way possible, you might want to consider using the right motor oil in order to achieve this. It best to keep in mind that not all oils are made equally.

According to experts at Subaru, they think it would be best if you change your first motor oil after 3,000 to 4,000 miles. But, why is that so? Well, usually the initial break-in period for a new car energy is normally around the 3,000 mile mark. If you don’t take the time out to change your oil at this point, then your car engine might experience a few wears.

Choosing the best engine oil for your Subaru WRX can be a bit challenging, especially for a first time car owner. Don’t worry, in this article we have compiled a list of the best oil for Subaru WRX you can find on the market for the money.

Subaru WRX Oil Consumption

If it’s a case where you are trying to find out what’s your vehicle’s oil consumption, what you’ll need to do is check on how often you’ve changed oil over time – this might be a bit difficult. Subaru actually think it’s best if you get the first oil change after about 6 months, but we think it would be a better idea to do so around 3,000 to 4,000 miles.

This is essential because at this point your vehicle’s will be just out the initial break-in period as mentioned above. A newer engine will start to experience more wear at this period. If you have a older vehicle, then you can consider changing the oil at the 6,000 mile mark. It will ensure Subaru WRX limited burning oil, this is a problem that many Subaru owners complain about.

Different Types of Motor Oils

As you may already know, there are various types of motor oils that is designed for different types of vehicles. Let’s take a look at the various types of motor oil available out there:

Full Synthetic

Full synthetic would be the perfect choice for more specialized lightweight vehicles. These oils are created from chemically modified materials such as petroleum components, but the thing is that the base material is always distilled crude oil. They play a huge role in the performance of your vehicle and tend to flow at both high and low temperature. The main reason why most vehicle owners stay away from using them is because they are known to be expensive.

Synthetic Blend

As the name suggests, these oils have a mixture of both organic oil and synthetic oil. These oils are specially made for high temperatures and heavier loads. There are many truck owners who opt for these oils because they are considered to be a lot less expensive when compared to full synthetics.

Conventional Oil

These oil types works best for new cars and they are considered to be the most economical option and the reason for this is because they require much less refinement and re-engineering, which can be a bit expensive. There are many experts who still specify conventional engine oil as long as they comply with the latest industry standards.

High Mileage

As you can see, modern cars tend to last a lot longer these days, this is why you might see used cars parked up for sale on the road. These oils are superb for cars that has a mileage over 75,000 miles. This type of motor oil was designed to address certain problems that you might encounter with high mileage vehicles. It plays a role in restoring worn engine parts and preventing further wear and tear.

Best Oil For Subaru WRX

1. Castrol GTX Magnatec 5W-30 Full Synthetic – Editor’s Choice

Best oil for Subaru WRX
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First on our list is this high-end oil which is considered by many to be one of the best oils on the market for Subaru WRX. It is said to be the most effective oil since it has the ability to reduce engine wear and tear significantly. This is because of the frictional additives it has which reduces the friction that occurs between the engine parts.

We actually like the fact that it comes with additives that enhance the performance of the vehicle. What this means is that you will enjoy a smooth startup even in the coldest temperatures. It is safe to say that the protective layer of the Castrol engine oil tends to leave your engine parts 4x smoother than it usually is.

Even though the oil is more expensive compared to its competitors, it will definitely save you a lot of money in the long run by reducing your fuel expenses. If you are a long distance driver, then Castrol oil might just be the right choice for you. Because whenever you drive for a long period, the engine tends to heat up, so you will need a oil that will cool off your engine.


  • Helps to reduce engine wear and tear
  • Leaves an extra protective layer on the engine parts
  • Keeps your engine cool for a long period of time
  • Works well with the Bosch oil filter


  • There are complaints about the oil not been fully synthetic

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2. Subaru SAE 5W-30 Engine Oil – Great Value For The Money

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Another high-quality engine oil on the market that’s totally worth the investment is this Subaru SAE 5W-30 which is considered by many to be one of the best oil for Subaru WRX. This oil is said to have the ability to function dependably at severe hot and cold temperatures as well as to withstand rigorous and lengthy engine operations without having to worry about experiencing any viscosity breakdown.

Due to the fact that this oil is so slippery, it is made for less engine wear and thus greater longevity. This oil was specially made to provide long term reliability and lubrication your WRX needs in order to tackle any challenge without actually letting you down. There’s no doubt that this motor oil is far more superior when compared to other traditional oils which aids in preventing premature failures.

If it’s a case where you have turbo engine, synthetic oil would definitely be the best option; which is why this is considered to be a superb choice for all models of Subaru WRX. It is available in 1-gallon bottle which you can use to fill the 5.1-liter engine oil capacity of your Subaru WRX.


  • Approved by Subaru
  • High-quality synthetic oil
  • Helps to lubricate even the smallest components
  • ILSAC certified
  • Helps to increase engine performance


  • Not the best option for winter

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3. Castrol Edge 5W-30 Petrol – Superb Quality

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If you are looking to find an advanced full synthetic motor oil for your Subaru, the Castrol Edge 5W-30 might just be the perfect fit for you. As you may know Castrol has a very solid reputation when it comes to racing and is one of the leading makers of the best motor oils that you can get for the money.

One thing for sure is that Castrol Edge motor oil is many times stronger against viscosity breakdown than any other synthetic and conventional oils out there. The reason why we are a huge fan of this product is because the petrol has the ability to reach even the smallest components in your engine and keeps them operating smoothly even during high speeds.

It is considered to be super effective in handling various speeds and your engine will definitely become highly responsive due to the fact that there will be minimal deposit formation. It also helps in cooling the engine by lubricating the moving parts. This lubrication tends to provides protection against the damages that result from friction.


  • Wear and tear engine protection
  • Keeps the engine running smooth during various speeds
  • Helps to improve fuel economy significantly
  • Great option for turbocharged petrol engine


  • Not the best for high mileage
  • People complain about the oil filter making noise over time

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Though these oils are considered to be more expensive compared to the oi ther brands out there, it is safe to say that full synthetic is the best option for your Subaru. It actually helps to protect your engine’s moving parts in both hot and cold temperatures. It even plays a role in reducing friction, which decreases fuel consumption and increases horsepower.

If you want to experience the best results while driving your vehicle, then it is best to check out the oils listed above.

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