1) is this meant for the manual 2018 wrx (not an sti) and it’s rear diff? 2) how is this made in the usa? i thought it was from japan?

this will work in the manual transmission and the diff. Subaru make things in the US to avoid tariffs.

Is the oil with limited slips?

This oil can be used for the transmission and the front and rear differential. The best thing to do is call a Subaru dealership and talk to the maintenance department. Some times it is even cheaper there than on Amazon. When i got the coolant it was twice the price here than at the dealership.

Is this full synthetic?

This product is not synthetic, it is a Subaru manual transmission specialty mix recommend by Subaru for manual transmission's and rear differentials. I recently purchased 5 quarts for my 2010 Outback 6 speed and am very pleased with the product.

How many quarts do i need for a subaru wrx sti (2015+)? i am seeing it's around 6 quarts. is that correct? make a 6qt pack.

4.25-4.5 quarts transmission 1.25-1.75 quarts rear differential, you’ll need a pump adapter to place onto the bottle

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75W90 Extra S Gear & Transmission Fluid - 5 Quart Bottles Sti WRX Genuine SOA427V1700 X5

Product ID: 44140990

Details

Brand
Subaru
Liquid Volume
5 Quarts
Material
Synthetic
Package Information
Bottle
Recommended Uses For Product
Transmission

⚙️75W-90 GL-5 synthetic grade

🛠️Optimized for 5 & 6-speed manuals

🇺🇸Made in USA, genuine Subaru OEM

€ 258.35

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Shift smoother, drive smarter — Subaru’s secret to manual mastery!

TRUSTED OEM QUALITY - Subaru-recommended synthetic fluid made in the USA for reliability and peace of mind.
BULK 5 QUART VALUE PACK - Keep your ride ready with enough fluid for multiple changes or differential use.
SMOOTH SHIFTS ZERO GRIND - Experience effortless gear changes with reduced wear and noise.
TAILORED FOR MANUAL MASTERY - Specifically designed for 5 & 6-speed manual transmissions.
PRECISION ENGINEERED FOR SUBARU - Genuine SOA427V1700 formula ensures peak transmission performance.

This 5-quart pack of genuine Subaru 75W-90 Extra S Gear & Transmission Fluid (SOA427V1700) is a synthetic GL-5 grade oil engineered specifically for 5 and 6-speed manual transmissions. Made in the USA, it delivers OEM-approved performance that reduces gear grinding and enhances smooth shifting, making it the top choice for Subaru manual transmission maintenance.

Specifications

ASIN	B0731SB4M3
Best Sellers Rank	#50,253 in Automotive ( See Top 100 in Automotive ) #132 in Transmission Fluids
Brand Name	Subaru
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (307)
Item Form	Liquid
Liquid Volume	5 Quarts
Material	Synthetic
Part Number	SOA427V1700KIT
Recommended Uses For Product	Transmission Fluid
SAE J300 Viscosity Grade	75W-90
Specific Uses For Product	Manual Transmission Lubrication
UPC	752589526142
Unit Count	160.0 Fluid Ounces
Viscosity	75W90

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 258.35

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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