XF and XFR ( X250 ) 2007 - 2015

Have you changed your diff fluid?

 
  #1  
Old 01-29-2019, 05:32 PM
lotusespritse's Avatar
Veteran Member
Thread Starter
Join Date: Jan 2012
Location: Houston
Posts: 1,124
Received 168 Likes on 134 Posts
Default Have you changed your diff fluid?

If not, you should. It's easy. Drain and refill. Diffs are expensive to replace -- a lot more than the fluid, even though the fluid is expensive. However, I bought more of the OEM fluid than I needed, so you can change your diff fluid at a substantial discount here:
https://www.ebay.com/itm/233111401734
 

Last edited by lotusespritse; 01-29-2019 at 07:19 PM.
  #2  
Old 01-29-2019, 07:31 PM
Senior Member
Join Date: Jan 2019
Location: GTA
Posts: 230
Received 16 Likes on 12 Posts
Default

Is there any DIY around here saying how to replace the oil on the X250?
I have a feeling is something I will most probably do in the spring... plus the transmission oil.
 
  #3  
Old 01-29-2019, 07:45 PM
lotusespritse's Avatar
Veteran Member
Thread Starter
Join Date: Jan 2012
Location: Houston
Posts: 1,124
Received 168 Likes on 134 Posts
Default

Originally Posted by mrNewt View Post
Is there any DIY around here saying how to replace the oil on the X250?
I have a feeling is something I will most probably do in the spring... plus the transmission oil.
It couldn't be easier. There is a plug on the bottom that you remove to drain the old fluid, and a plug on the side that you put in .9 liters of new OEM Castrol fluid, and that's it.
 
The following users liked this post:
mrNewt (01-29-2019)
  #4  
Old 01-29-2019, 07:58 PM
OzXFR's Avatar
Veteran Member
Join Date: Feb 2014
Location: Adelaide, South Australia
Posts: 3,959
Received 1,112 Likes on 926 Posts
Default

Originally Posted by lotusespritse View Post
It couldn't be easier. There is a plug on the bottom that you remove to drain the old fluid, and a plug on the side that you put in .9 liters of new OEM Castrol fluid, and that's it.
Remember though, the fill plug on the side can be a bear to get at and undo and sometimes it is stuck real tight, so make sure you can get it off BEFORE you undo the drain plug on the bottom.
 
The following users liked this post:
mrNewt (01-29-2019)
  #5  
Old 01-29-2019, 08:39 PM
Senior Member
Join Date: Jan 2019
Location: GTA
Posts: 230
Received 16 Likes on 12 Posts
Default

Originally Posted by lotusespritse View Post
It couldn't be easier. There is a plug on the bottom that you remove to drain the old fluid, and a plug on the side that you put in .9 liters of new OEM Castrol fluid, and that's it.
Oh well... that doesn't sound that bad then - thanks!

Originally Posted by OzXFR View Post
Remember though, the fill plug on the side can be a bear to get at and undo and sometimes it is stuck real tight, so make sure you can get it off BEFORE you undo the drain plug on the bottom.
That is a good call - thanks! Knowing myself, I would of probably drained it first .

 
  #6  
Old 01-30-2019, 09:33 AM
Veteran Member
Join Date: Jun 2010
Location: Morristown, NJ
Posts: 1,455
Received 158 Likes on 148 Posts
Default

+1 definitely worth doing.

was hearing a strange noise from my car around 35k miles....when turning 90 degrees from a stop. replaced the fluid and the noise went away. cost approx $100
 
  #7  
Old 01-30-2019, 08:15 PM
Senior Member
Join Date: Nov 2014
Location: Ontario, Canada
Posts: 178
Received 9 Likes on 8 Posts
Default

Does JLR recommend changing the differential fluid? Or any master tech recommend it?
 
  #8  
Old 01-30-2019, 08:49 PM
OzXFR's Avatar
Veteran Member
Join Date: Feb 2014
Location: Adelaide, South Australia
Posts: 3,959
Received 1,112 Likes on 926 Posts
Default

Originally Posted by hen555 View Post
Does JLR recommend changing the differential fluid? Or any master tech recommend it?
I think it's the same story as the auto trans fluid - "sealed for life" according to JLR but according to the manufacturer it should be changed every once in a while, 100,000 miles IIRC for the diff fluid.
 
  #9  
Old 01-30-2019, 11:08 PM
Senior Member
Join Date: May 2014
Location: San Francisco, CA
Posts: 612
Received 208 Likes on 133 Posts
Default

I'm going to be changing mine soon, as well as dropping the diff and changing the seals and mount bushings.

Originally Posted by OzXFR View Post
I think it's the same story as the auto trans fluid - "sealed for life" according to JLR
It bugs the **** out of me that JLR say this. For what it's worth, I've read articles and countless forum posts and opinions on both sides of the aisle about this, but a disappointingly large number of people telling you specifically NOT to change the fluid, with plenty of references to manufacturers claiming their transmission fluid is "sealed for life" and all too often, some mystical tales of woo about dealer technicians saying that it's "bad" for transmissions etc to change the fluid, with some occasionally hilarious reasons given, but usually no rational reason given at all. It's all complete bullshit, and every single one of these people is talking out their *** because statistically most of them (and I certainly include myself here) really have no idea when it comes down to the finer points of metallurgy and fluid dynamics.

But here's what I do know: if it's oil being used for lubrication and cooling of rotating bits of metal, what possible harm can come from returning the fluid to the same properties it had when the transmission was built? Is there some mystical reason that oil, which breaks down and gets objectively less effective over time with heat cycles and use, should never be removed from a transmission or a diff case case, like smoke from a genie's bottle? There are plenty of legitimate situations (e.g. oil cooler/pipes/pan damage) that would necessitate a fluid change. Are they saying at that point the transmission's toast and you need a new one? It's nonsense. There's no reason not to change it. Also, ZF - the people who make the f**king thing - agree: "ZF therefore recommends a transmission oil change every 100,000 km or after 8 years at the latest"

The only thing I will mention is that (at least with transmission fluid) it's worth resetting the transmission "memory" which adjusts solenoid rates etc for smoother shifts as it can then re-learn with the new viscosity of the new oil - this can be done with the jag software/cable, by a dealer, or some of the better code readers can also do this too.
 

Last edited by davetibbs; 01-30-2019 at 11:38 PM.
  #10  
Old 01-30-2019, 11:57 PM
lotusespritse's Avatar
Veteran Member
Thread Starter
Join Date: Jan 2012
Location: Houston
Posts: 1,124
Received 168 Likes on 134 Posts
Default

Getting off topic, but I have changed the transmission filter and fluid in both of my XF's and my current RRS (similar transmission but uses the 8 fluid instead of the 6), with all of them having around 50K-60K miles on them.

I didn't reset any computers (the Jag shop manual doesn't say to do that, and neither did the manual for my current RR), and the transmissions all shifted very nicely afterwards. On my gray XF, it made a very noticeable improvement in the shifting quality to change the fluid.

Back to the diff, It seems much better to change the diff fluid every 50K miles, especially since it's so much easier than any other fluid in the car to change.
 

Last edited by lotusespritse; 01-31-2019 at 12:10 AM.
  #11  
Old 01-31-2019, 07:56 AM
pab's Avatar
pab
pab is offline
Veteran Member
Join Date: Apr 2011
Location: Boston
Posts: 1,573
Received 206 Likes on 180 Posts
Default

>I have changed the transmission filter and fluid in...
Yup, did that with my S-Type 4.2 at 60K miles. Will do that with my XF when it gets to that mileage. Bought a kit with the correct amount of fluid, a filter, a replacement pan, and a special electrical connector that had to be changed when the pan was removed.

I had the S-Type done at an indi Jaguar shop. It's quite the bitch of a job to do. You have to add ATF through the drain hole while the car is running and the transmission is up to temperature and the drain hole is within inches of an exhaust down pipe, which is super hot... :-0
================================================
Jaguar - it's not an automobile, it's a Motorcar
Current: '15 XF (X250) Portfolio AWD 3.0 (it's aubergine...)
Past B: '08 S-Type 4.2 "Satin Edition" (250.06 whp / 259.67 torque)
Past A: '05 X-Type 3.0/auto Jaguar Racing Green
 
  #12  
Old 01-31-2019, 09:53 AM
Senior Member
Join Date: Jan 2019
Location: GTA
Posts: 230
Received 16 Likes on 12 Posts
Default

Not to start a war out here but...

In my opinion, when it comes to mechanics, there is no such thing as sealed for life (note that nowhere they say what is that life expectancy to begin with... so for the life of what!?).

When it comes to the transmission, to me things are very simple... I go with what the actual manufacturer of the part recommends; and in this case, our German "friends" from ZF - and they DO recommend to change it.
Their word, for me, trumps any Jag technician alive out there. Is not their transmission, they just use it in their cars. They don't know all the ins and outs of it. Also is hard to trust them when they take shortcuts with their own manufactured parts :/.

Considering that I am basically the third owner for this car and is high millage, to me is even more worrying to hear that Jag recommends such a non-sense. Now I have the feeling that my transmission has never seen an oil change... and this is the first thing I will be doing as soon spring comes, along with the rear diff. I usually baby my cars in winter time anyway, so she should be safe until then.

Maybe they do this on purpose?
They can't make money out of used, out of warranty cars... so if they break and forces users out of their car or to fix it, the better for them.
 
  #13  
Old 01-31-2019, 11:25 AM
Senior Member
Join Date: May 2014
Location: San Francisco, CA
Posts: 612
Received 208 Likes on 133 Posts
Default

Originally Posted by mrNewt View Post
Not to start a war out here but..
I'm definitely down for war when it comes to bullshit "sealed for life" old wives tales

Originally Posted by mrNewt View Post
Maybe they do this on purpose?
They can't make money out of used, out of warranty cars... so if they break and forces users out of their car or to fix it, the better for them.
In all honesty I think the answer's even simpler than that: they know that the transmission is fine without a fluid change for the standard warranty period, so it's a process that they can leave off the "scheduled service" list. That means they don't have to be set up and trained to do otherwise somewhat regular fluid changes. Don't forget that the process of filling and checking the oil level is kind of a pain in the *** on these ZF boxes, and with a reasonably long initial service life, it seems they figure they can get away with not bothering.

I also did some digging last night to try and find some sort of tangible reason as to why you shouldn't change transmission fluid. The best I could find (and in my mind it's still not a great reason) is that on very high mileage transmissions there can be sludge built up on components and a new, presumably thinner transmission oil could lift the sludge but also somehow (???) pull up friction material with it, which could then get circulated around the transmission and cause damage.

This again sounds like pretty unsubstantiated bullshit, but even if this was a concern it could be easily (although admittedly not particularly cheaply) mitigated by doing another fluid change 100 miles later or whatever. I'm still standing firm that there's absolutely no good reason to avoid changing the transmission or diff fluid whatever the mileage, and it can only do good. Someone prove me wrong
 
  #14  
Old 01-31-2019, 12:06 PM
Senior Member
Join Date: Jan 2019
Location: GTA
Posts: 230
Received 16 Likes on 12 Posts
Default

Originally Posted by davetibbs View Post
In all honesty I think the answer's even simpler than that: they know that the transmission is fine without a fluid change for the standard warranty period, so it's a process that they can leave off the "scheduled service" list. That means they don't have to be set up and trained to do otherwise somewhat regular fluid changes. Don't forget that the process of filling and checking the oil level is kind of a pain in the *** on these ZF boxes, and with a reasonably long initial service life, it seems they figure they can get away with not bothering.
You could definitely be right on the reasoning... but on the other side, personally I don't think the process is that bad.
If I can do this job in my garage, without a lift and just some ramps, a dealer with specialty tools and a lift could do it even more easier than me.

Originally Posted by davetibbs View Post
I also did some digging last night to try and find some sort of tangible reason as to why you shouldn't change transmission fluid. The best I could find (and in my mind it's still not a great reason) is that on very high mileage transmissions there can be sludge built up on components and a new, presumably thinner transmission oil could lift the sludge but also somehow (???) pull up friction material with it, which could then get circulated around the transmission and cause damage.

This again sounds like pretty unsubstantiated bullshit, but even if this was a concern it could be easily (although admittedly not particularly cheaply) mitigated by doing another fluid change 100 miles later or whatever. I'm still standing firm that there's absolutely no good reason to avoid changing the transmission or diff fluid whatever the mileage, and it can only do good. Someone prove me wrong
Actually, that IS a good reason and is only viable for high mileage automatic transmissions that have never seen an oil change in their life.

Very short explanation of the case...
Clutch plates will eventually wear out and the residue from them will flow within the transmission fluid, making thicker but still provide some friction because of the residue that floats in the fluid.
Once you start replacing the fluid, your remove that stuff and eventually (sometimes right away), you will have no grip between the clutches and you barely go; or in extreme cases, not go anywhere .
This has happened... is not a wife's tale.

Now, I don't know specifically for the ZF transmissions if this is true... but as far as I know they still use some clutches... and they do wear out... so... I don't know what to say.
I will stand corrected if I am wrong. I'm more than happy to learn about these things more.

Sorry lotusespritse - looks like this has became a transmission related thread (kind of related I guess since they are connected ).
 

Last edited by mrNewt; 01-31-2019 at 12:12 PM. Reason: corrections...
  #15  
Old 01-31-2019, 12:23 PM
lotusespritse's Avatar
Veteran Member
Thread Starter
Join Date: Jan 2012
Location: Houston
Posts: 1,124
Received 168 Likes on 134 Posts
Default

You guys are welcome to talk about anything you want on this thread as long as someone buys my dealer-purchased Castrol fluid. Here's the link again:

https://www.ebay.com/itm/233111401734

A lot of people stating they plan to change their diff fluid on here, but there can only be one that is going to save big on the factory-recommended fluid! Who's it going be? Once it's gone, it's gone!

If you want to buy it direct from me using PayPal instead of going through eBay, PM me.
 
The following users liked this post:
Panthro (02-07-2019)
  #16  
Old 01-31-2019, 12:25 PM
Senior Member
Join Date: Jan 2019
Location: GTA
Posts: 230
Received 16 Likes on 12 Posts
Default

Originally Posted by lotusespritse View Post
You guys are welcome to talk about anything you want on this thread as long as someone buys my dealer-purchased Castrol fluid. Here's the link again:

https://www.ebay.com/itm/233111401734

A lot of people stating they plan to change their diff fluid on here, but there can only be one that is going to save big on the factory-recommended fluid! Who's it going be? Once it's gone, it's gone!

If you want to buy it direct from me using PayPal instead of going through eBay, PM me.
I would love to buy the oil from you, but I am in Canada... the shipping costs will be as high as the oil bottle itself .
 
  #17  
Old 01-31-2019, 12:50 PM
Veteran Member
Join Date: May 2009
Location: home
Posts: 3,306
Received 586 Likes on 485 Posts
Default

For you guys that changed the rear end fluid. How did the old stuff look?
When I did my old STR it was pretty bad the first time at 90K miles so I did again after driving another 5K miles.
Did not notice any difference but seems like a good thing to do!

With only 35K on my 2014 XJR I will probably wait some more but this is the first E-diff I have ever owned and I imagine it's an expensive piece.
Noticed the fill plug on the XJ is not easy to get to so I hope I can do it without more disassembly.
.
.
.
 
  #18  
Old 01-31-2019, 01:05 PM
Senior Member
Join Date: May 2008
Location: Portland, OR
Posts: 396
Received 35 Likes on 30 Posts
Default

Yep, changed the diff fluid on my '09 XFSC at 50k. My VIN was in the range that MAY have been subject to the diff factory contamination. What came out was not at all dirty and had no discernible metal shavings. I used royal purple for the re-fill. My car is currently at 66k and I plan to change it at 70K, so in about 2 years., based on current driving habits (I have 2 other cars that are daily drivers).....
 
  #19  
Old 01-31-2019, 11:02 PM
lotusespritse's Avatar
Veteran Member
Thread Starter
Join Date: Jan 2012
Location: Houston
Posts: 1,124
Received 168 Likes on 134 Posts
Default

FYI, the BOT 750B is the dealer verified fluid for my year/options XF. I do not have an e-diff. Please make sure it's the right fluid for your XF before purchasing.
 
  #20  
Old 02-01-2019, 07:34 AM
Senior Member
Join Date: Nov 2014
Location: Ontario, Canada
Posts: 178
Received 9 Likes on 8 Posts
Default

Another way to find out about transmission and diff fluid change is to check with other car manufactures who use the same units or similar model units.

The ZF6HP is used in many cars including German cars so if someone checks BMWs maintenance recommendation on the transmission for oil change and they say to do it then thereís another reason. Since they both German they will probably hopefully have better communication with each other (ZF and BMW) and follow the proper maintenance for the transmission. Who knows maybe ZF and Jaguar disagree with each other because ZF makes money by selling transmissions including replacement transmissions ...I would say especially replacement transmissions. Jaguar knows if customers need to replace their transmission which costs a lot then they ainít going to buy another Jaguar. So maybe you lose performance but have a long lasting transmission.
 

Thread Tools
Search this Thread
Quick Reply: Have you changed your diff fluid?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: