







⚙️ Shift into high gear with Idemitsu ATF Type H-Plus — where performance meets precision.
Idemitsu ATF Type H-Plus is a premium automatic transmission fluid designed specifically for Honda and Acura vehicles. It features a precise 5.8 cSt viscosity and can withstand temperatures up to 258°C, ensuring optimal transmission performance and longevity. Engineered with advanced friction modifiers, it enhances fuel economy, clutch response, and smooth shifting, while maintaining stable viscosity under extreme conditions. Trusted by automotive leaders and ISO-certified, this fluid offers superior anti-wear protection and reliable compatibility with Honda ATF Z-1 and DW-1 standards.






| Brand | Idemitsu |
| Package Information | Bottle |
| Liquid Volume | 2E+1 Quarts |
| Item Weight | 1.9 Pounds |
| Viscosity | 5.8 cSt |
| Upper Temperature Rating | 258 Degrees Celsius |
| Item Form | Liquid |
| Manufacturer | Idemitsu |
| Unit Count | 160.0 Fluid Ounces |
| Number of Items | 1 |
| Item Weight | 1.9 pounds |
| Product Dimensions | 16.4 x 9 x 11.75 inches |
| Manufacturer Part Number | 30040090-95300C020 |
T**Y
The best Honda ATF. Period.
Expensive, but best possible transmission fluid for Honda Automatic Transmissions.For reference, I drive a 2002 Honda Accord V6. The 6th generation Accords, especially the V6 options, are notorious for failures. This is mostly caused by heat and poor adhesives on the clutch pack material, leading to slipping and poor shifting. The original ATF was Z1, then replaced by DW-1 by Honda later. Both were manufactured by Idemitsu.Now, my ATF was very old when I got the car, so dark I thought it was engine oil when it leaked because it was so black. The recommended fix for this is to replace the ATF in a 3-replace pattern, with a full drain and fill, followed by some driving and shifting to allow the ATF to flow everywhere, and replace it twice more. This will replace almost all the ATF. Due to cost, I was using Valvoline’s Maxlife ATF, which performed quite well, but there wasn’t much to help the transmission.Some additives helped, but only Lubegard’s Red and Instant Shudder Fix products.One day, on the V6Performance.net forums, I found this Idemitsu Type-H recommendation and decided it was worth it. After all, if Idemitsu created Honda’s OEM, surely they know what they’re doing. So, I’ve been driving on this for the past 6 months, and have so far been shocked by the consistent reliability. Before, shifting from 1st to 2nd was incredibly rough, and worse from 2nd to 1st. Park to reverse was bad too, making the entire car lurch. Beyond that, the RPM required to speed up was much higher than it was supposed to be, leading to lost power and higher ATF temperatures.Now, it almost feels like a new transmission! It’s not perfect, there’s still some hitching in the shifts, but it’s not nearly as bad as it was, even with all new ATF, and once it’s warmed up, sometimes shifting is invisible. Going from wondering how soon I have to buy a new transmission to realizing I can cost for probably at least a few more years is an incredible change. Highly recommended!
G**N
For Post-1990 Honda Automatic Transmissions
Exactly the Transmission Fluid for post-1990 Hondas with Automatic Transmissions. I've read, in the Honda Forums, that this is the company that also makes the Honda-Branded fluids that are OEM. I aslo use their Power Steeing Fluid. This is the most convienient way to order this for my Honda Transmission Fluid changes (2 CRVs, plus an Acura) and the price is good. Also, when draining your Honda Transmission, don't forget to replace your Transmission Oil Filter. It's also very easy.
J**
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!
C**
Works fine so far for 2011 accord
Used the whole 5 quarts on a couple drain and fills for my 2011 accord 2.4l. Transmission is working fine so far after a couple hundred miles.
E**O
Better shifting
So far so good ,I've been using this oil for transmission, its been riding with better shifting
O**I
Ouality
Good quality fluid.
A**E
ATF-Z1 Transmission Fluid
This transmission fluid was great for my Acura TL. I definitely recommend it!! Transmission shifts really smooth, better than it ever has!!
T**N
As good as the original transmission fluid
My Honda Pilot transmission works well, no issues, after replacing the original fluid with this one.
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