








🛠️ Upgrade your Subaru’s heartbeat with Idemitsu ATF HP — shift smoother, last longer!
Idemitsu ATF Type HP is the OEM-recommended automatic transmission fluid for Subaru vehicles post-2006, engineered for superior friction control, thermal stability up to 174°C, and advanced anti-wear protection. This 1-quart red fluid ensures smooth shifting, prevents shudder, maintains transmission cleanliness, and conditions seals to reduce leaks, delivering professional-grade performance at a fraction of the Subaru brand cost.






| ASIN | B071X4DVRM |
| Best Sellers Rank | #30,016 in Automotive ( See Top 100 in Automotive ) #97 in Transmission Fluids |
| Brand | Idemitsu |
| Date First Available | June 9, 2017 |
| Flash Point | 174 Degrees Celsius |
| Global Trade Identification Number | 00852967006096 |
| Item Form | Liquid |
| Item Weight | 1.92 pounds |
| Item model number | 30040099-75000C020 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Idemitsu |
| Material | Polytetrafluoroethylene (PTFE) |
| Number of Items | 1 |
| Package Information | Bottle |
| Product Dimensions | 8.8 x 4.2 x 2.6 inches |
| 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 | 32.0 Fluid Ounces |
| Upper Temperature Rating | 174 Degrees Celsius |
M**.
Perfect for 4EAT Phase 2 (this was for a 2006 Forester XT, 220k miles on the OD)
TL;DR: works just as intended and IS the manufacturer of the Subaru HP variant. Idemitsu HP is the same. Its what Subaru recommends over Dexron since 2006 for these transmissions. To give a little background: My center lockup clutches (MPT if you know) were binding in turns which often happens in automatic Subarus when the oil gets old or dirty. It feels like a shutter when you make tight turns, and you can hear the tires binding up. Its 50/50 that or Duty C solenoid went bad. Need to fix it or risk burning the MPT clutch pack. One of the first things that should be done, even if the oil is dark, is to give it a change. The oil pan holds 5 quarts, the transmission itself holds a total of about 15. Subaru service bulletins state( in 2006) that after '06 they do not recommend Dexron, they recommend Subaru ATF-HP. This is that very same HP formula. Idemitsu makes the blue Subaru bottles of the same stuff but at about half the cost that Subaru sells their blue bottles at. Well, one change is all it took. One change and the MPT broke free within the first tight turn. The transmission never shifted or felt better. No more hard shifts, no more shift hesitation. No more solenoid buzz. no more " idk which gear to choose" syndrome. I will change it 2 more times after periods of about 500 miles to get all of the fluid new, just as many in the community recommends. If you see glitter in your old oil, time to get it rebuilt. I did not and its the only reason why i changed it even though it was dark and didn't re-add some of the old oil back( often done because that glitter is usually clutch material and without it, you will slip gears). No clutch material from any of the MPT or drive gear clutch packs in the oil and no broken teeth in the gears. If this oil change doesn't help with MPT bind, could be your Duty C solenoid but that usually throws a code and makes your ATF TEMP light blink 16 times when you start the car. If its Duty C, you will need more of these as you have to drop the pan and do a little work.
C**N
Good value and improved transmission performance
Drained the transmission pan of a 2010 Subaru Forester (90k mile) and refilled with this product. Went for a drive. Transmission shifted smoother. Well worth it. BTW the Subaru service manual lists Idemitsu ATF Type HP as an alternative to Subaru ATF HP.
J**.
Good for 4speed atf
It’s the right fluid for the job . 07 outback second time changing out the transmission fluid and external filter. Even though this is a 5 qt jug you still need another qt to fill what you drained. I did drop the pan this time but internal filter screen just needed to be cleaned also the magnet. Was no gaskets on the pan just sealant from the factory, so no gasket needed if you don’t have one .
A**R
Good purchase
As described shipped quickly.
J**E
Genuine Subaru 4EAT ATF.
Excellent. OEM fluid. Do not substitute generic ATF.
A**R
Worked perfectly
Perfect
C**S
Gotta have it I guess
Kinda expensive just about everywhere, including Amazon but that's the game we're all playing now so...
M**.
So far so good! OEM quality
OEM quality oil.
J**E
It's what is recommended in the Subaru owners manual. It's a little on the pricey side
M**F
A much more cost effective ATF for Subaru owners. Same as OE Subaru as far as I understand...
V**V
Looks good.
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