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Idemitsu Type H Plus - Fluid Color #5377914 03/16/20 02:35 PM
Joined: Aug 2004
Posts: 21,830
The Critic Offline OP
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Joined: Aug 2004
Posts: 21,830
I have installed Idemitsu Type H Plus in three Honda automatics. In each vehicle, a triple drain-and-refill was performed.

In all three vehicles, within 5k miles, the fluid has lost its red color and has turned yellow (same color as new engine oil).

Not sure why this is happening.

But from a performance standpoint, every vehicle shifted smoother compared to ATF DW1.


2011 Toyota Prius 1.8L - 207K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 146K - Valvoline Premium Blue Restore 10W-30
Re: Idemitsu Type H Plus - Fluid Color [Re: The Critic] #5377946 03/16/20 03:41 PM
Joined: Apr 2017
Posts: 3,628
H
hallstevenson Offline
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Joined: Apr 2017
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Originally Posted by The Critic
But from a performance standpoint, every vehicle shifted smoother compared to ATF DW1.

My understanding is with Z-1 or DW-1 fluid in Honda transmissions, "smooth" shifts are actually not desired (by design). I don't mean jarring, slamming into the next gear, but a firm gear shift is normal.

Re: Idemitsu Type H Plus - Fluid Color [Re: The Critic] #5378075 03/16/20 07:14 PM
Joined: Oct 2018
Posts: 242
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WagonWheel Offline
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I’ve noticed once it gets up to operating temp after driving on the highway for 30+ minutes, the shifts to the upper gears on my 06 Ody EX-L are a little abrupt or clunky. I use Maxlife MV ATF though.


2003 Honda Accord 2.4L 5AT - 153k miles
2006 Honda Odyssey 3.5L EX-L 127k miles (S-VCM)
Re: Idemitsu Type H Plus - Fluid Color [Re: The Critic] #5378122 03/16/20 08:08 PM
Joined: Mar 2015
Posts: 8,041
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bbhero Offline
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Joined: Mar 2015
Posts: 8,041
Originally Posted by The Critic
I have installed Idemitsu Type H Plus in three Honda automatics. In each vehicle, a triple drain-and-refill was performed.

In all three vehicles, within 5k miles, the fluid has lost its red color and has turned yellow (same color as new engine oil).

Not sure why this is happening.

But from a performance standpoint, every vehicle shifted smoother compared to ATF DW1.



Probably a bit of oxidation going on there... My blue blue Eneos CVT fluid turned from that color to a very clear translucent motor oil color in hardly no time... No hint of blue at all... Now after 16k miles plus the fluid is hard to see on the transmission dipstick just like right after changing be the motor oil.


Nissan Altima 3.5 Coupe
Cam2 Full synthetic 5w30 Carquest Blue 84356
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