Subaru Front Differential Fluid Type: Which One Is Appropriate For Your Vehicle?

What is the Subaru front differential fluid type? Primarily, Subaru utilizes two front differential fluid types: mineral oil or regular gear oil and synthetic differential fluid. So, it’s a lubricant designed to protect the front diff against friction and wear while extending lifespan.

But all synthetic liquid types aren’t ideal for Subaru’s front differential as the company allows only specific synthetic oil to reduce friction and keep the overall temperature low.

If you want to learn about which front differential fluid is permissible to use in your Subaru, you may continue reading this article.

Subaru Front Differential Fluid Type: Are There Many Variants?

Subaru’s automated front differential differs from its manual counterpart, as does the lubrication. An automated Subaru’s front diff uses distinctly different oil than the manual Subaru’s front differential.

So, speaking of the Subaru differential fluid type, while the manual transmission shares the transmission fluid with the front differential located at the gearbox, the automated one requires a different fluid type, which is basically the synthetic gear oil.

According to Subaru, all automated Subaru’s front differentials are rated to go with synthetic gear oil labeled with a “75W-90” rating with a “GL-5” marking.

That stated, if you are searching for the answer related to the 2010 Subaru Forester front differential fluid type or any other models, here you go:

If your vehicle features an automatic transmission, you should pick a 75W-90, GL-5 gear oil; otherwise, any regular gear oil will do the job.

You may like to know about different ATF+4 transmission fluid equivalents!

However, suppose you can’t find a specific brand’s best-suited front differential fluid. In that case, we recommend using any synthetic oil from a renowned brand with the marking mentioned above.

If you notice the label, you can stay assured that the fluid has the appropriate viscosity for your preferred vehicle.

To be on the safe side, choose the synthetic 75W-90 front differential oil manufactured by Subaru.

In case you fail to manage any front differential fluid yielded by Subaru, here we have some alternatives for you that we have gathered through thorough research and based on experts’ recommendations. And they are as follows:

  • ACDelco SAE 75W-90 Dexron Gear Oil
  • Eneos SAE 75W-90 Gear Oil
  • Red Line SAE 75W-90 Full Synthetic Gear Oil
  • Motul  SAE 75W-90 Gear Oil
  • Motul SAE 75W-90 Full Synthetic Gear 300 LS Gear Oil

Developed to meet Subaru’s front differential standard, these lubricants offer unparalleled protection, extending the front diff’s lifespan. Additionally, they are non-toxic and eco-friendly, which you can rely on entirely.

Frequently Asked Questions (FAQs)

What Kind Of Fluid Goes In A Front Differential Subaru?

The synthetic 75W-90 API GL-5 gear oil goes into the Subaru’s front differential with automated transmission. In contrast, Subaru’s manual transmission utilizes the traditional gear oil for the front diff.

How Often Do Differential Fluids Need To Be Changed In Subarus?

According to experts, Subaru riders should change the front differential fluid after riding approximately 15,000 miles to 30,000 miles. In this way, they can prolong the life of their vehicle’s front diffs.

When Should I Change My Differential Fluid Subaru Outback?

Like the engine oil, you don’t need to change your front differential fluid frequently. You must change it when you complete riding 15,000 miles or even more to ensure your front differentials’ longevity.


So, now you know which Subaru front differential fluid type to use based on your vehicle’s transmission. Here’s a quick recap, for the automated transmission, you should choose synthetic oil, and for the manual transmission, you can use regular gear oil but ensure it comes from the best brand.

That’s all for this content; we hope we can provide you with the information you were looking for. If we did, we would appreciate your frequent visit to our website. Thanks for reading; we will catch you with the next one soon. 

You Can Also Read:

Similar Posts