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Toyota A750E/F Do-It-Yourself Transmission Flush #4660797 02/09/18 11:18 AM
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john_pifer Offline OP
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If you have a Toyota Tacoma/4Runner/Sequoia/Tundra/FJ Cruiser with the Aisin-Warner A750E (2WD) or A750F (4x4) automatic transmission, here's a great, informative post over on the Tacoma World forum on how to do a full transmission fluid exchange yourself, without any special fluid exchange machines or tools.

I used this exact post to perform a transmission fluid exchange for the first time on my Tacoma back in 2012 when my truck had 101,000 miles. I now have over 198,000 miles, so it's time to start thinking about doing it again.

I use the OEM fluid (Toyota WS), and, last time, the dealership parts dept. clerk gave me a little deal on the 15 quarts of fluid I bought (10% off), just by asking if he'd be willing to do a little better on the price since I was buying 15 quarts. Just checked with my local dealer, North Nashville Toyota, just across the street, and the parts dude at the counter said he would do 10% off.

For those who aren't aware, this transmission doesn't have a dipstick, which makes it slightly more complicated, but it's still pretty easy. User Mountain Lion on the Tacoma World forum gives very easy-to-follow, step-by-step instructions, which are idiot-proof.

Anyway, I know there are quite a few folks here who have these vehicles, so, I figured I'd share something that has helped me.

https://www.tacomaworld.com/threads/diy-...-9#post-7762315

Last edited by john_pifer; 02/09/18 11:19 AM. Reason: Made title easier to search

07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 228K
18 Civic HB 1.5T 6MT (Wife's) - PPPP 10W-30, OEM filter
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #4660915 02/09/18 01:04 PM
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supton Offline
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Not sure I'd want to use that hand operated lift pump to move quarts and quarts of oil.

On mine I found a 5/8" (ID? OD? I simply bought several feet of different sizes) clear PVC tubing fit into the fill port; I snaked a hose up into the engine compartment and shoved on a funnel for filling. Let gravity do some work for me, for once.


2011 Toyota Camry, base, 2.5L/6MT, 206k
2010 Toyota Tundra DC, 4.6L/6AT, 160k
2003 CRV, 2.4L/4AT, 161k
1999 Toyota Camry LE, 2.2L/4AT, 225k
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #4661119 02/09/18 04:43 PM
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Reddy45 Offline
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I have one of these trans but just do a drain/fill every 50k. The drain/fill while cold changes out a 1/3 to 1/4 of the system capacity.

I did the first drain/fill at 6k miles and the fluid was just ever slightly darker than fresh. I did another drain/fill at 20K and the fluid that came out looked brand new, so I think that first change was more beneficial than the subsequent one.


Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #4661346 02/09/18 09:26 PM
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Linctex Offline
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Originally Posted By: john_pifer

For those who aren't aware, this transmission doesn't have a dipstick, ....... easy-to-follow, step-by-step instructions, which are idiot-proof.


I do not own one of these transmissions,
but I am going to read just for curiosity/educational purposes!


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #4661495 02/10/18 12:26 AM
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Dyusik Offline
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Looks to be the same for the A960E for my 2IS, link to PDF.


95 Cherokee 190K DELO XLE 10W30, XG8
04 YZF-R1 21K RT6 15w40, XG7317
18 RAM 3500 15k Delvac 15w40, DBL7349
96 Cherokee
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: Linctex] #4664479 02/13/18 05:48 AM
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Shannow Offline
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Originally Posted By: Linctex
Originally Posted By: john_pifer

For those who aren't aware, this transmission doesn't have a dipstick, ....... easy-to-follow, step-by-step instructions, which are idiot-proof.


I do not own one of these transmissions,
but I am going to read just for curiosity/educational purposes!


Zackerly why these threads are great.

Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #5443443 05/31/20 06:15 PM
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anndel Offline
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WS or Type IV for my 2014 Taco Prerunner 4.0L V6? ALLDATA says Type IV and looks like screenshot of the FSM. Specs for the A750E transmission, Yuotube and the tacomaworld link says WS.


1993 Toyota 4x4 p/u, 2.4L 22RE 4 cyl - Amsoil SS 10W-30, Amsoil FIlter
2005 Toyota Avalon XL, 3.5L V6, Amsoil SS 5W-30, Amsoil Filter
2014 Toyota Tacoma 4.0L V6, Amsoil SS 5W-30, Yota OEM Filter
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: anndel] #5443454 05/31/20 06:27 PM
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RyanY Online Happy
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Originally Posted by anndel
WS or Type IV for my 2014 Taco Prerunner 4.0L V6? ALLDATA says Type IV and looks like screenshot of the FSM. Specs for the A750E transmission, Yuotube and the tacomaworld link says WS.

4 speed is type IV and 5 speed (A750E) is WS. Or just use Maxlife which works well in place of both types.
[Linked Image]

Last edited by RyanY; 05/31/20 06:28 PM.

2007 Cadillac CTS 3.6L >131k miles; mix of PUP/Magnatec 5W-30 + ACDelco PF2129G

2012 Honda Odyssey EX-L >109k miles; QSUD 0W20 + STP S6607XL
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: RyanY] #5443595 05/31/20 10:29 PM
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anndel Offline
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Originally Posted by RyanY
Originally Posted by anndel
WS or Type IV for my 2014 Taco Prerunner 4.0L V6? ALLDATA says Type IV and looks like screenshot of the FSM. Specs for the A750E transmission, Yuotube and the tacomaworld link says WS.

4 speed is type IV and 5 speed (A750E) is WS. Or just use Maxlife which works well in place of both types.
[Linked Image]


Thanks very much!


1993 Toyota 4x4 p/u, 2.4L 22RE 4 cyl - Amsoil SS 10W-30, Amsoil FIlter
2005 Toyota Avalon XL, 3.5L V6, Amsoil SS 5W-30, Amsoil Filter
2014 Toyota Tacoma 4.0L V6, Amsoil SS 5W-30, Yota OEM Filter
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #5443625 05/31/20 11:52 PM
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john_pifer Offline OP
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I used WS both times I did it, and my 2007 Taco with the V6 and A750E is still running great at 228,800 miles!


07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 228K
18 Civic HB 1.5T 6MT (Wife's) - PPPP 10W-30, OEM filter
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #5444420 06/02/20 06:57 AM
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MaximaGuy Offline
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First off for a full flush you need no more than 10Q and return line flush is the way to go.

On a dead cold car this is what I have done with remarkable results
Remove drain bolt and pipe and drain pan. Once drained put back the pipe and drain bolt.
Fill new ATF for what was drained back through the fill plug on the side of transmission.
Remove return line and run vehicle until nothing comes off the transmission. Stop car.
Refill again and start car and this time move the gears till nothing comes out. Stop car.

Measure all the ATF vs. filled ATF. The final fill will be the difference of the drained and filled ATF.

Bring the car level and bring the temp to 105-115 degrees and remove drain bolt to remove excess (having the Toyota diagnostic s/w helps which is relatively cheap to buy from a good vendor, I bought one from eBay and it was a nightmare to get it work).


2018 MB GLE350
2011 Lexus ES350
2006 Toyota Highlander 4WD
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: john_pifer] #5446425 06/04/20 08:44 PM
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ARB1977 Offline
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When I did my 15 Tacoma I used Amsoil Universal blue cap. Before that I used Maxlife ATF. Since then I added a deep pan which gave me 2.5-3 qrts of additional fluid.


2015 Tacoma 4.0L 60K (as of 02/23/18)
AMSOIL SS 0W30 / Toyota filter

2018 CRV 1.5L (as of 05/11/18)
Factory fill / Honda filter
Re: Toyota A750E/F Do-It-Yourself Transmission Flush [Re: anndel] #5446945 06/05/20 01:49 PM
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dave1251 Offline
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Originally Posted by anndel
WS or Type IV for my 2014 Taco Prerunner 4.0L V6? ALLDATA says Type IV and looks like screenshot of the FSM. Specs for the A750E transmission, Yuotube and the tacomaworld link says WS.

Use the AW mutil-vehicle ATF. It doesn't have a Toyota approval but it's the OE for the transmission and it's recommended by AW.


make the inside of your engine oil cap white.
don't use.
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