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⚙️ Shift smarter, drive smoother — the premium fluid your Honda deserves!
Idemitsu ATF Type H-Plus is a premium transmission fluid designed specifically for Honda and Acura vehicles requiring ATF Z-1 or DW-1. It features optimized viscosity and advanced friction-reducing additives to improve fuel economy, clutch performance, and smooth gear shifts. Certified to ISO & IATF standards, it maintains stable viscosity across extreme temperatures, ensuring reliable transmission protection and enhanced driving comfort.





| ASIN | B0BMK59LJ9 |
| Best Sellers Rank | #7,157 in Automotive ( See Top 100 in Automotive ) #28 in Transmission Fluids |
| Brand | Idemitsu |
| Brand Name | Idemitsu |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 892 Reviews |
| Included Components | Idemitsu ATF Type H-Plus |
| Item Form | Liquid |
| Item Highlight | For Honda ATF Z-1 & DW-1 | Smooth Shifting & Anti-Wear Protection | ISO & IATF Certified |
| Item Weight | 1.9 pounds |
| Liquid Volume | 12 quarts |
| Manufacturer | Idemitsu |
| Number of Items | 12 |
| Number of Packs | 1 |
| Package Information | Bottle |
| Part Number | 30040090-75000C020 |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Honda and Acura vehicles (ATF Z-1 or DW-1 fluid) |
| Unit Count | 12 Count |
| Viscosity | 5w-30 |
C**G
Good stuff and shifts great
Knowing is half the battle And it did and is doing just fine in my transmission in an 05 Honda CRV , Idemitsu is considered a premium, top-tier motor oil. It is one of the largest lubricant manufacturers in the world and serves as the primary factory-fill (OEM) oil supplier for many major Japanese automakers, including Honda, Mazda, Nissan, and Subaru
S**I
The same as the original Honda ATF DW 1
great transmission fluid for Hondas
J**B
Works great
I recently had the automatic transmission fluid changed in my 2007 Acura RDX, and I couldn’t be more pleased with the results! As a vehicle owner, I understand the importance of regular maintenance, and this fluid change was long overdue. First off, the process was smooth and straightforward. I took my RDX to a trusted mechanic who specializes in Honda and Acura vehicles. They used Idemitsu ATF Type-H Plus, which is specifically recommended for my model. I appreciated their attention to detail and the quality of the fluid they used, ensuring that my transmission would perform optimally. After the fluid change, I immediately noticed a difference in how my RDX shifted gears. The transitions are now smoother and more responsive, which makes for a much more enjoyable driving experience. The engine feels more powerful, and I can tell that the transmission is operating more efficiently. Additionally, I feel more confident knowing that I’ve taken a proactive step in maintaining my vehicle. Regular fluid changes can significantly extend the life of the transmission, and I’m glad to have done this before any potential issues arise. Overall, I highly recommend getting the transmission fluid changed if you haven’t done so recently. It’s a relatively simple maintenance task that can make a world of difference in performance. My 2007 Acura RDX feels revitalized, and I’m excited to hit the road with renewed confidence!
D**.
Good fit
Just what I needed
J**K
Order correct and on time
Order correct. Arrived on time
R**N
As described, no issues
As described, smooth transaction. A+.
C**S
On the fence between DW1 and Idemitsu
Seemed to work fine for 25000 miles until lately where I'm getting some bump downshift from 3-2. I looked at the MSDS for both and the genuine honda fluid (made by Idemitsu) has a viscosity: @ 40C = 24.94 cSt; @ 100C = 6.84 cSt.(MSDS from 7/2014), and the Idemitsu H+ has a viscosity of: @ 40C = 34.88 cSt; @ 100C = 7.33 cSt.(MSDS from 8/2017). Some of the lower reviews are questioning longevity. My first couple of drain and fills (every 24k) were DW1 and I had no problems ever. It's now time for the next 24k change, and I'm sensing tiny weird behaviors in the trans in addition to the downshift bump.
J**F
GREAT
AWESOME
A**E
Good Honda ATF replacement
Good replacement for Honda ATF. Did atf change on my civic and check engine went away
A**T
Used in a 2008 Honda Fit.
Seems great. The shame of it is if you change your transmission fluid at home and don’t have a flushing machine you have to waste some of this fluid during a 3 stage change process. No biggie. The old car shifts gear nicely and is good for another 100,000 kms.
J**U
Best replacement at a better price.
Seems to be the best replacement for Honda’s transmission fluid. I believe after my research, that they are a Japanese company, that is making the perfect bland, to match what Honda used for their transmission.
W**R
It works well
Works fine on a Honda Odyssey EX 2014
A**R
same as Honda DW-1 trans.fluid
it works great..
Trustpilot
1 month ago
1 month ago