Who Makes Subaru Motor Oil

Who Makes Subaru Motor Oil? A Complete Guide

If you own a motor vehicle, I hope you are familiar with Subaru motor oil. This renowned motor oil offers wear and corrosion protection, fuel economy, and other blissful features. But, how many of you know who works behind this top-notch product. 

Who makes Subaru synthetic oil? Well, Subaru oil manufacturer is a Japan-based company named Idemitsu. The base of Idemitsu is located in Japan. Currently, this motor oil company has a tag as one of the top ten lubricant manufacturers in the world. 

Our following discussion has a handful of information regarding Subaru motor oil and manufacturing details. Let’s reveal that by scrolling. 

Who makes Subaru synthetic oil?

Idemitsu is a Japanese family-based company. Starting from 1911, they have been operating their business for over a century with a reputation. Previously, they were known as Idemitsu and Co and sold oil for Nippon in northern Kyushu, Moji. After that, Idemitsu started selling fuel for the fishing boats. 

We found a big move in 1914 when Idemitsu kept its footprint in Manchuria, China. In 1940, they moved to their current name and established their headquarters in Tokyo. After that, they have started their business expansion to multiple countries like Taiwan, Korea, Indonesia, USA. 

They kept their footprint on the USA in late 1970 by supplying lubricants. After 22 years in 1992, Idemitsu established a production house in the USA. 

Currently, they have become the second-largest motor oil manufacturer in Japan. Also, they have a tag of 8th largest lubricants manufacturer globally. Its blissful service helps make it one of the trusted companies among the users. 

Why is Subaru oil change expensive?

Subaru oil is an extraordinary oil specially designed for extraordinary cars. Here, two advanced synthetic formulations were used to ensure a blissful result in multiple ways. Let’s see some of its features which make it expensive. 

  • It helps to withstand oil breakdown and oxidation. 
  • You will get superior protection against deposits and varnish. 
  • Ensures a cleaner running engine and longer engine life
  • It retards viscosity breakdown in rigorous engine operation. 
  • Ensure blissful lubrication in any operating temperatures. 
  • Lead to fuel economy and power increase. 

Different Available SUBARU Motor Oils 

Currently, Subaru offers three different grades, including,

  • Subaru OW-20
  • 5W-30, and 
  • 5W-20. 

Among those, some are synthetic, and others are conventional. You hopefully know that synthetic motor oil offers better results than conventional motor oil. But, you have to choose the right oil for your engine, so check the user manual. 

Subaru Synthetic Oil vs Mobil 1

Here you can get how those two brands offer the same result. 

Particular Subaru Synthetic Oil Mobil 1
Viscosity Index Minimize engine wear at temps. Ensure too thin at high temps and too thick oil at low temps
Performance in low temps Ensure the oil flow in the critical engine parts to minimize engine wear. Ensure blissful oil flow at start-up.
Traction Offers lower oil temperatures and greater efficiency.  Offer less friction within the fluid. 
Oxidative Stability Withstanding oxygen molecules attack and break down. Reducing the oil thickening rate and minimizing engine deposits and varnish.

Best synthetic oil for Subaru Motor oil

We have looked over different motor oils from Amazon Basics, Genuine Subaru, and Castrol. Then we picked the following synthetic motor oil for Subaru. Hopefully, each of our selected oils will make you happy by ensuring optimum service. 

  1. Amazon Basics Full Synthetic Motor Oil – 0W-20 – 5 Quart

Our top-picked motor oil comes for longer drain intervals. You can keep aside rust and corrosion-related issues from your vehicle. Plus, it promotes less engine wear by reducing friction. Many users fear viscosity and the thermal breakdown of the oil. Don’t worry; this oil aids in withstanding those issues. Finally, you will be blessed with exhaust emissions reduction. 


  1. Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, Green, 5 Quart

Our next pick is another ideal motor oil for those who want to ensure better vehicle care. Its noteworthy feature is a blissful protection against engine wear. 

I hope that your critical engine parts will be safe by incorporating this synthetic motor oil. Also, using this oil aids in maintaining the optimum performance level of your vehicle’s engine. Hopefully, you will notice the result. 

  1. Genuine Subaru SOA427V1315 Oil – 0W20 Synthetic

Genuine Subaru 0W-20 is one of the few motor oils formulated to improve your vehicle’s engine efficiency. You will get high blissful performance in any operating conditions. Among the most obvious amenities is to withstand oil oxidation and breakdown. 

Don’t fear viscosity breakdown; instead, you can enjoy better lubrication at any operating temperature. By incorporating this oil, users will experience optimized fuel economy and promote longer engine life. 

  1. Castrol 03124 Edge 0W-20 Advanced Full Synthetic Motor Oil

Today, many reputed brands bring the perfect motor oil for Subaru STI. Castrol OW-20 synthetic motor oil is one of them to perfectly meet the user’s demand. To begin with the core benefits, we enlist the protection against wear, deposits, and oxidation. 

Another blissful aspect to mention in this oil is reducing volatility and offers excellent protection for your engine’s critical parts

Alternatives Of Subaru Oil (Honorable Mentions) 

If you can’t manage our recommended Subaru motor oil, don’t worry, our selected alternatives are ready for you. Note: Try to ensure the ability and viscosity before replacing Subaru motor oil. 

  1. Chevron Supreme SAE 5W-30 Supreme Motor Oil

Our 1st alternative is from Chevron. As an alternative, Don’t be tense because it offers better wear protection, deposit, and sludge formation. The superior high-temperature oxidation will prevent viscosity and promote smooth engine performance. 

  1. Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 

As we intend to familiarize you with the best alternative of Subaru motor oil, we picked Valvoline SAE 5W-30 synthetic oil. You can ensure blissful protection against rust, corrosion, sludge, and deposit. Also, its formula aids in preventing the leak problem. 


You can undoubtedly ensure optimum vehicle operation once you ensure the right Subaru motor oil. This oil is special for Subaru engines (low-friction design) and operating temperatures. Many users don’t have any idea who is the manufacturer of this synthetic oil. I hope you got all the details.  

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