RAM 1500 Diesel Forum banner

1 - 20 of 47 Posts

·
Registered
Joined
·
15 Posts
Discussion Starter #1
Quick question.. my dealer say I need a transmission fluid change at 85,000 miles. I ain't so sure. Any comments or insights? I'd research this but I'm sitting in dealer parking lot. He's waiting an answer.

Thanks,


Jim Ford
Copper Hill VA
 

·
Registered
Joined
·
316 Posts
ZF recommends changing at 62k. I would consider it until I saw the price they are going to charge you.


Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
247 Posts
If you plan to keep it long term, get it done. Either dealer or local transmission shop. ZF transmission used in 10-15 other vehicles world wide. FCA does not have the only chassis these are in.
 

·
Super Moderator
Joined
·
3,311 Posts
Do it at 100k at a competent place other than the dealer. Print off the instructions from the transmission section and bring that and the fluid with you so that all you are paying them for is the labor. Bet it’s less than 1/2 what a Ram dealership would charge you.
 

·
Registered
Joined
·
466 Posts
According to the owners manual its lifetime fluid. I changed mine at 100,000 miles.
 
  • Like
Reactions: phprof

·
Registered
Joined
·
1,414 Posts
Agree w/ 100 and maybe 125 if not towing much with a lot of hwy miles. Got 15% discount on fluid and pan at dealer then paid tranny shop 1 hr labor. At 250 I will switch to either Amsoil or Maxlife ATF.

Here is my UOA @148,500:

View attachment ZF Lab.pdf
 

Attachments

·
Registered
Joined
·
293 Posts
I changed mine at 150k just because that's when I got the truck. THe magnets inside the pan were LOADED with shavings and gunk. I used Amsoil at $8/qt, plus OE pan. It's easy to do yourself, the truck even tells you the transmission temperature, so it takes all the guesswork out of it. Lots of videos online and you don't even need to jack it up. Just need a little hand-pump to transfer from oil can to tranny. Took me like 30min.
 

·
Registered
Joined
·
4,571 Posts
I changed mine at 70k and the fluid analysis was good. Would have been comfortable waiting until 100k.

I used Valvoline MaxLife.
 

·
Registered
Joined
·
4,388 Posts
Im at 66k miles on mine. Planning to change the filter/pan at 70 and fill and wait a 1000 or so miles drain and refill again to get higher % of new fluid, and after that I will only drain and fill every 50-75k as long as I keep the truck.
 

·
Registered
Joined
·
316 Posts
I changed mine at 70k and the fluid analysis was good. Would have been comfortable waiting until 100k.

I used Valvoline MaxLife.
I am assuming you just replaced the fluid you lost with the MaxLife and didn’t flush it somehow. In other words, you mixed the old and new fluids?


Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
4,622 Posts
I am assuming you just replaced the fluid you lost with the MaxLife and didn’t flush it somehow. In other words, you mixed the old and new fluids?


Sent from my iPhone using Tapatalk
Exactly , there is a thread around explaining that some needed fibers are in suspension in oil
and removing every last drop , before filling up again ,would not be beneficial .
good threads : https://www.ram1500diesel.com/forum/ram-1500-diesel-transmission/43218-how-change-transmission-fluid-check.html
this one about the pan : https://www.ram1500diesel.com/forum/ram-1500-diesel-transmission/60450-zf-8hp-plastic-transmission-pan-differences.html
ZF instructions in PDF file .

make sure the transmission is taken back to needed temperature ( you can see it on the EVIC )
and level rechecked then , after the transmission cooling system has taken oil around ,see at 12:15 minutes in the video.
 

Attachments

·
Registered
Joined
·
801 Posts
According to the owners manual its lifetime fluid. I changed mine at 100,000 miles.
Yeah, it's a funny statement until you realize they are telling you this on your expensive transmission. The real LOL is that ZF whole sale denies this. They even have a video on how this is not true.
 

·
Registered
Joined
·
13,683 Posts
That's a popular video above. Just not for an Ecodiesel. The thermal control valve on the Ecodiesel is different than the one in the video. I do not know exactly how ours operates but think when closed it still holds fluid. When mine was changed the lines were immediately plugged as it appeared they were full of fluid. Sure there must be some fluid in that valve. Just hoping the proper fill procedure - a real PIA to me - will open that control valve up and get it full again. If not, so be it as mine has run maybe 20,000 miles since the valve change and what is felt as a proper fill procedure.

Many here talk of changing their pan and replacing the fluid. Some say it's an easy job. I say it's a miserable operation brought with heat from that DPF and a bit of discomfort dealing with that fill plug. Best with a lift and a second person in the drivers' seat that can start, operate the shifter in the proper sequence, watch the transmission temperature and make sense out of the directions. Finding an assistant with those skills is not as easy as it reads. Doing the work underneath, especially the filling in that restricted and hot space, sure was problematic for me.

I suggest going over the directions, finding an local independent garage with a lift and an reasonable assistant. Then have them do it properly with your competent guidance. The ZF transmission is reliable. It is not easily serviced without a dip stick and fill plug in a reasonable location.
 

·
Registered
Joined
·
4,571 Posts
I am assuming you just replaced the fluid you lost with the MaxLife and didn’t flush it somehow. In other words, you mixed the old and new fluids?
No, I changed my fluid completely and added the oversized aluminum trans pan from PPE. Pan is sweet. Added capacity, extra cooling, a serviceable filter, and a drain plug that actually works.
 

·
Registered
Joined
·
316 Posts
No, I changed my fluid completely and added the oversized aluminum trans pan from PPE. Pan is sweet. Added capacity, extra cooling, a serviceable filter, and a drain plug that actually works.
How did you completely change the fluid?


Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
13,683 Posts
Back when I changed mine it was because of extreme overheating multiple times. Some the old fluid was sent to a lab for analysis. Still good.

Just change the fluid if it's something you think needs to be done. What might be left that's not getting changed and mixed with the new is probably good. That's why it's no big deal hustling to change the fluid. Have yet to read of bad fluid coming out.
 

·
Registered
Joined
·
229 Posts
I havent seen a proper dump and flush yet but imagine the same as doing ,.. lets say 1999 ram,..whereby u hook onto the lines and flush it properly,


so if they get a portion of the fluid out and get the filter replaced it seems adequate to simply do the dump and fill method, and load that new fluid with the old muck.


Probably guessing but u might get 50% of new fluid,,mixed with old cooler line fluid , torque converter and the transfer line fluid and then close ur eyes and not think about that part , hahaa
 
1 - 20 of 47 Posts
Top