How can i be sure this is the authentic idemitsu brand and not fake, and, this meets the specs for a 2011 subaru outback 3.6r?

(I'm thinking the 3.6R got the old school 5EAT and not the newer CVT.) The shipment I received appeared to be genuine, equivalent to Subaru ATF-HP. If it was counterfeit, they did an extremely good job copying the bottle and the label; and what would they have put in the bottle that would have been significantly cheaper than ATF-HP but not as good? Bottom line, I don't know how you would tell if the product you received was counterfeit.

What color is good on the stick after 150,000?

New, out of the bottle fluid is red. If you haven't changed it in 150,000 miles I would bet it is dark brown and more viscous. Red is best. For a quick solution, with the motor off you can siphon most of the fluid out of the holding tank and replace it with this fluid. After a week you can do it again and you should be good.

Is this good for 2008 Subaru Outback automatic transaxle (2.5i 4-cylinder engine)?

This is the fluid that Subaru specifies. See page 11-24 of your owners manual for more information on recommended fluids and capacity for your automatic transmission. I use this ATF in my 2008 Subaru Outback 2.5i.

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Idemitsu ATF Type HP Automatic Transmission Fluid for Subaru - 1QT, Red, (30040099-75000C020)

Idemitsu ATF Type HP Automatic Transmission Fluid for Subaru - 1QT, Red, (30040099-75000C020)

Product ID: 44721590

Details

Brand
Idemitsu
Liquid Volume
32 fluid
Material
(PTFE)
Package Information
Bottle
Recommended Uses For Product
Transmission

🔥High 174°C flash point

⚙️Precision friction control

🛡️Advanced anti-wear tech

48369CFA

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Description

⚙️ Shift Smooth, Drive Confident: The Ultimate Subaru Transmission Fluid Upgrade

SPOTLESS TRANSMISSION HEALTH - Superior cleanliness technology keeps sludge and varnish at bay, protecting your gears like a pro.
SEAMLESS SHIFTS ZERO SHUDDER - Engineered frictional properties ensure buttery smooth gear changes and eliminate annoying shudder.
LONG LASTING THERMAL STABILITY - Outstanding oxidation resistance means your transmission fluid stays fresh and effective longer, saving you time and money.
LEAK RESISTANT SEAL CONDITIONING - Enhanced seal compatibility prevents leaks by reducing shrinkage and cracking, so you drive worry-free.
MAXIMUM GEAR BEARING PROTECTION - Cutting-edge anti-wear additives shield critical components, extending transmission life under all driving conditions.

Idemitsu ATF Type HP is a premium automatic transmission fluid designed specifically for Subaru vehicles, delivering precise frictional control for smooth shifting, exceptional thermal and oxidation stability for extended fluid life, and advanced anti-wear protection to safeguard gears and bearings. Its superior cleanliness formula prevents sludge buildup, while enhanced seal conditioning minimizes leak risks, making it a trusted choice for maintaining optimal transmission performance.

Specifications

ASIN	B071X4DVRM
Best Sellers Rank	#21,047 in Automotive ( See Top 100 in Automotive ) #63 in Transmission Fluids
Brand Name	Idemitsu
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (437)
Flash Point	174 °C
Global Trade Identification Number	00852967006096
Included Components	Quart of Idemitsu ATF Type HP
Item Form	Liquid
Item Type Name	ATF Type HP Automatic Transmission Fluid (1 quart)
Liquid Volume	32 fluid ounces
Manufacturer	Idemitsu
Material	Polytetrafluoroethylene (PTFE)
Model Number	30040099-75000C020
Number of Items	1
Number of Packs	1
Part Number	30040099-75000C020
Recommended Uses For Product	Transmission Fluid
Specific Uses For Product	Automatic Transmission Lubrication and Maintenance for Subaru Vehicles with HP Specifications
UPC	852967006096 852967006539
Unit Count	32 Fluid Ounces
Upper Temperature Rating	174 °C

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