ZF8HP50 fluid exchange frequency?

[FlyingTexan]

I have my Grenadier which uses a BMW Powertrain. They say the transmission is for life. We all know things fail at some point so I don’t know what their definition is. What I do know is the Grenny is 6,000lbs, tuned, and driven hard. How often should I real world be swapping out the plastic drain pan/filter and the fluids. It’s not about the cost. To me it’s peace of mind, the joy of taking care of my baby, and having it last forever.

 

[slacktide_bitog]

Once every 30-60k should be sufficient.

 

[meep]

I’d run the factory fill 50-60k then do a drain/fill every 30k, old school. This transmission is in a lot of vehicles, including my Tacoma. Toyota puts WS fluid in it, so I’m not sure it has any special requirements, however the OE probably has their programming tuned to the characteristics of the expected fluid. Given a choice, mine my see amsoil in a few years.

Does this unit have a filter?

 

[4WD]

I have my Grenadier which uses a BMW Powertrain. They say the transmission is for life. We all know things fail at some point so I don’t know what their definition is. What I do know is the Grenny is 6,000lbs, tuned, and driven hard. How often should I real world be swapping out the plastic drain pan/filter and the fluids. It’s not about the cost. To me it’s peace of mind, the joy of taking care of my baby, and having it last forever.

ZF says 60k - Personally - I like a 20k change to clean the pan and magnets (break in debris) before going longer …

 

[clinebarger]

I’d run the factory fill 50-60k then do a drain/fill every 30k, old school. This transmission is in a lot of vehicles, including my Tacoma. Toyota puts WS fluid in it, so I’m not sure it has any special requirements, however the OE probably has their programming tuned to the characteristics of the expected fluid. Given a choice, mine my see amsoil in a few years.

Does this unit have a filter?

8HP in a Toyota?

 

[thescreensavers]

Maybe someon can find it but I remember a couple years ago at a tradeshow someone asked an engineer at the ZF booth what was the recommend oil change interval and it was 30k, and mocked the "lifetime" BS

 

[BMW Dom]

ZF says 100k miles.

Every 60k is probably best

 

[mcrn]

8HP in a Toyota?

I think maybe the Supra which is a BMW. Do not think its in the Tacoma

 

[mdoan300]

ZF says after 150,000kms (93,205mi). Taken from: https://aftermarket.zf.com/lubricants/en/te-ml_11-en.pdf

ZF 5-, 6-, 8- and 9-speed as well as the ZF 4HP20 automatic transmissions are filled maintenance-free with specially developed semi-synthetic ATF oils. However, due to the many factors influencing the service life of transmissions in individual operation, ZF recommends an oil change after 150,000 km for its transmissions. In operating conditions with high temperatures and loads, or with unknown vehicle use in the past, it can make sense to change the transmission oil at shorter intervals.


In each case, only released ATF oil may be used for oil changes. And oil changes must be performed in accordance with the relevant specifications. The exception is the ZF 5HP18 automatic transmission which must be filled differently depending on the version.

 

[BHopkins]

According to FCP, ZF recommends a 50k interval and BMW recommends an 80k interval. FCP recommends going with the ZF recommendation.

 

[FlyingTexan]

I’d run the factory fill 50-60k then do a drain/fill every 30k, old school. This transmission is in a lot of vehicles, including my Tacoma. Toyota puts WS fluid in it, so I’m not sure it has any special requirements, however the OE probably has their programming tuned to the characteristics of the expected fluid. Given a choice, mine my see amsoil in a few years.

Does this unit have a filter?

WS fluid? What do you mean?

 

[FlyingTexan]

ZF says 60k - Personally - I like a 20k change to clean the pan and magnets (break in debris) before going longer …

clean the pan? You don't replace the filter? I thought they were attached to the pans so you just bought the pan to replace with a filter in it.

 

[Falcon_LS]

From what I've read, ZF recommends 50,000 - 75,000 mile intervals. For my ZF 8HP, I stick to 25,000 km (~16,000 mi) intervals due to heat and a lot of stop-and-go. Too frequent? Maybe, but I sleep better.

 

[4WD]

clean the pan? You don't replace the filter? I thought they were attached to the pans so you just bought the pan to replace with a filter in it.

Mine has a steel pan and separate filter …
Regardless - every brand I have opened at 20k has had fully loaded (no longer effective) magnets - and build up in the pan that’s likely clutch material …

 

[4WD]

Another thread

F

Thread 'ZF 8 speed fluid change questions.'

Oct 5, 2022

Hi
I've read and watched lots about changing the transmission fluid in my 2014 Ram 1500 with the ZF 8 speed but I still have a couple of questions.

Do I drain the fluid when its cool or when its between the 30-50C (86-122F)? One video https://www.youtube.com/watch?v=kXK...Ds9wMi6TZg&start_radio=1&rv=kXKhZievmSI&t=924
said to drain it when its below operating temp but I thought I also read to heat it up first. Does draining it cool keep the fluid out of the tranny cooler so more comes out? Once comment in the video said to drain and then run the engine to get the oil out of the...

• Frznrth
• Replies: 51
• Forum: ATF, Differential, Trans, Brakes, P/S

 

[BMWTurboDzl]

deleted

 

[nwjones18]

My truck is approaching 70K and I have all the stuff to do the change, but the drain bolt on the pan is less than an inch above my exhaust X and I don't see how I'm going to get it done without lowering the exhaust.. Plenty of folks say you don't have to, but even if I cut an Allen wrench I still don't see how I'm going to get the plug out. I realize my pan/filter should be changed, but has anyone tried sucking the fluid out of the fill hole with an extractor? Seems like that'd be much easier going forward if it would work.

 

[meep]

8HP in a Toyota?

I think so? Correct me if I’m wrong. It’s a ZF 8 speed with the hybrid component.

 

[meep]

WS fluid? What do you mean?

WS is Toyota’s moniker for their OE transmission fluid. The proper name is probably, “Toyota ATF WS.”

 

[edyvw]

I think so? Correct me if I’m wrong. It’s a ZF 8 speed with the hybrid component.

No. It is Aisin.
ZF would make things much better for Tacoma.