Rear Differential Fluid Change DIY
#21
Transfer Case details in shop manual
Yes. Correct. I wrote two for Diff's. I have not changed other fluids. My assumption is that this transmission is similar to my 997 Turbo, and the Transfer case is part of/integrated into the actual transmission. Have not really looked into it though. Perhaps someone who has can chime in? At any rate, I have only had time to write up the Diff's to date.
DC
DC
The transfer case only holds 0.5 litre.
I imagine if the diffs need to be changed regularly then the transfer case would too based on the pictures you showed of your fluid changes.
I will try to post some screen shots of the type of fluid to use and capacity
#22
It was time to change the rear differential oil. I was expecting an easy job, but to my surprise the fill plug is not easily accessible . Had me stumped thinking whether I would need to remove the diagonal brace, then found this thread, thank you!
I used the same combination of extensions and easily reached the fill plug. The drained oil was much darker than any other diff oil I’ve done, but still seemed OK and not much metal powder on the magnetic plug. This is at 47K miles. I replaced with BOT720 that I already have, which is the same oil for the LR4 with locking diff. I had to get a bit creative with an extra hose and rubber coupler as the hook tip of the pump I have couldn’t fit in the tight space. Filled to around 1.2L which actually reached the fill plug.
I used the same combination of extensions and easily reached the fill plug. The drained oil was much darker than any other diff oil I’ve done, but still seemed OK and not much metal powder on the magnetic plug. This is at 47K miles. I replaced with BOT720 that I already have, which is the same oil for the LR4 with locking diff. I had to get a bit creative with an extra hose and rubber coupler as the hook tip of the pump I have couldn’t fit in the tight space. Filled to around 1.2L which actually reached the fill plug.
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#23
OilSafe 102000 Black Standard Pump
I’ve been using it for 6+ years for transmission, transfer case, and diff fluid changes for all my cars. More expensive, but works really well and pumps faster.
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#24
Changed the fluid on my '16S today. Using the wobble extension and ball end hex worked a treat, thanks for the tip. I was able to get everything done by lifting the rear drivers side only. Fluid was dark at 37,000 and likely was the factory fill. Filled her up with some Royal Purple max gear with a new hand pump (got over 10 faithful years out of the old one!) Nice piece of mind knowing I've got fresh fluid back there now when out giving 'er 👌
#25
Diff fluid
The capacities are below. For my application the amount listed did fill it to the fill hole. I added the below info to my document for clarity.
Thanks,
DC
Vehicles with 3.0L petrol (340 PS) SAFXO Dry Fill 0.84 - 0.86 Wet fill 0.815 - 0.835 Liters
Vehicles with 3.0L petrol (360 PS) Dry Fill BOT720 0.84 - 0.86 Wet fill 0.815 - 0.835 Liters
Vehicles with 5.0L petrol BOT720 Dry Fill 1.24 - 1.26 Wet fill 1.200 - 1.220 Liters
Thanks,
DC
Vehicles with 3.0L petrol (340 PS) SAFXO Dry Fill 0.84 - 0.86 Wet fill 0.815 - 0.835 Liters
Vehicles with 3.0L petrol (360 PS) Dry Fill BOT720 0.84 - 0.86 Wet fill 0.815 - 0.835 Liters
Vehicles with 5.0L petrol BOT720 Dry Fill 1.24 - 1.26 Wet fill 1.200 - 1.220 Liters
Not sure what brand to use or whether I should just go to the dealer to purchase
I have used Mobil 1 for years in my S2000 for the diff
I don't see the BOT 720 or SAXFO referenced on any of the products online for Mobil 1 or Motul or Royal Purple ( BOT 720)
Could you let us know which you used ?
Thank you
Last edited by Phantomf4collector; 06-09-2020 at 11:53 AM.
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#26
I am looking to do the diffs and the transfer case this weekend.
Not sure what brand to use or whether I should just go to the dealer to purchase
I have used Mobil 1 for years in my S2000 for the diff
I don't see the BOT 720 or SAXFO referenced on any of the products online for Mobil 1 or Motul or Royal Purple ( BOT 720)
Could you let us know which you used ?
Thank you
Not sure what brand to use or whether I should just go to the dealer to purchase
I have used Mobil 1 for years in my S2000 for the diff
I don't see the BOT 720 or SAXFO referenced on any of the products online for Mobil 1 or Motul or Royal Purple ( BOT 720)
Could you let us know which you used ?
Thank you
DC
Last edited by Therock88; 06-09-2020 at 12:54 PM.
#27
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#28
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#29
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#30
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#31
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#32
Some time ago I thought I stumbled across a site that mentioned the BOT720 met the specs of API GL-5, which the aforementioned Motul does meet. Of course I can't find that site now. I would imagine any reputable synthetic gear lube with limited slip additive that meets the GL-5 spec should be good for use in the F-Type rear. I know jack-S about the e-differential in the V8 cars but I believe others on the forum have been running the Motul and Royal Purple in it with no ill effects. I've got a month worth of spirited miles on my S after changing to Royal Purple and if it wasn't up to the task, I would have known by now
#33
Just picked up my car an hour ago from the dealer. They changed my Diff fluid included 2 new plugs $180
Also had them do the brake fluid flush and fill charged $140 for that service. Not bad when you can get out of a dealer ship for under
$400!
They did their standard multi point inspection as well for what its worth, found nothing.
My car is a V8S RWD car. Thought I would let people know so there is a comparable price point to work from for both services.
Also had them do the brake fluid flush and fill charged $140 for that service. Not bad when you can get out of a dealer ship for under
$400!
They did their standard multi point inspection as well for what its worth, found nothing.
My car is a V8S RWD car. Thought I would let people know so there is a comparable price point to work from for both services.
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#34
Just picked up my car an hour ago from the dealer. They changed my Diff fluid included 2 new plugs $180
Also had them do the brake fluid flush and fill charged $140 for that service. Not bad when you can get out of a dealer ship for under
$400!
They did their standard multi point inspection as well for what its worth, found nothing.
My car is a V8S RWD car. Thought I would let people know so there is a comparable price point to work from for both services.
Also had them do the brake fluid flush and fill charged $140 for that service. Not bad when you can get out of a dealer ship for under
$400!
They did their standard multi point inspection as well for what its worth, found nothing.
My car is a V8S RWD car. Thought I would let people know so there is a comparable price point to work from for both services.
#36
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#37
#38
My service slip for the dealer says they used oil Part# LR019727 which if you google it say its specific for electronic differentials.
My car is a 2014 V8 S rear wheel drive not sure about AWD cars. Its funny how the fluids that go in these cars...like the oils seem to be
some kind of secret that the public need not know about.
Honestly could have done the change myself but I was not willing to guess at what fluid to put in and chance messing up my E-DIFF!
Not for the price point of $180. Charged for 2 quarts of fluid @ $51 ea and $7 for plugs...$80 labor. Just not worth my effort.
The brake fluid flush also made my brake pedal feel firmer. Pad still had 8mm on the fronts and 6mm on the rears so plenty of pad left.
My car is a 2014 V8 S rear wheel drive not sure about AWD cars. Its funny how the fluids that go in these cars...like the oils seem to be
some kind of secret that the public need not know about.
Honestly could have done the change myself but I was not willing to guess at what fluid to put in and chance messing up my E-DIFF!
Not for the price point of $180. Charged for 2 quarts of fluid @ $51 ea and $7 for plugs...$80 labor. Just not worth my effort.
The brake fluid flush also made my brake pedal feel firmer. Pad still had 8mm on the fronts and 6mm on the rears so plenty of pad left.
Last edited by 2004XJ8; 07-07-2020 at 04:22 PM.
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#39
My service slip for the dealer says they used oil Part# LR019727 which if you google it say its specific for electronic differentials.
My car is a 2014 V8 S rear wheel drive not sure about AWD cars. Its funny how the fluids that go in these cars...like the oils seem to be
some kind of secret that the public need not know about.
Honestly could have done the change myself but I was not willing to guess at what fluid to put in and chance messing up my E-DIFF!
Not for the price point of $180. Charged for 2 quarts of fluid @ $51 ea and $7 for plugs...$80 labor. Just not worth my effort.
The brake fluid flush also made my brake pedal feel firmer. Pad still had 8mm on the fronts and 6mm on the rears so plenty of pad left.
My car is a 2014 V8 S rear wheel drive not sure about AWD cars. Its funny how the fluids that go in these cars...like the oils seem to be
some kind of secret that the public need not know about.
Honestly could have done the change myself but I was not willing to guess at what fluid to put in and chance messing up my E-DIFF!
Not for the price point of $180. Charged for 2 quarts of fluid @ $51 ea and $7 for plugs...$80 labor. Just not worth my effort.
The brake fluid flush also made my brake pedal feel firmer. Pad still had 8mm on the fronts and 6mm on the rears so plenty of pad left.
Last edited by David Meier; 07-08-2020 at 12:19 PM.
#40
That's the truth. I've never had a car where the toughest thing about doing your own maintenance was finding the correct fluids. I have the 2105 V8S so I think the same engine. I am thinking it might be easier to take it to the dealer, but I have the tools and time so why not (famous last words). I wondering if any API GL-5 would be fine. I'd prefer to run down and grab some Mobile 1 API GL-5 diff fluid versus ordering online.
if you can sort out what is actually approved. The engine oil spec might be a little more lenient as long as you use the recommended weight and
change your oil every 5k. I would never weight 16k to change oil that's just insane.
I look at it from the stand point of time and materials cost vs paying the dealer. The correct Jag/LR diff fluid online was $48 a quart 2X.
That's more then 1/2 the cost for the dealer to do it? Not worth it for me to climb under and do the work for an extra $80.
But that's me.
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