Transfer Case And Rear Differential Fluid Change - Hyundai Forums : Hyundai Forum
Reply
 
LinkBack Thread Tools
#1 Old 10-12-2009, 10:54 PM
Junior Member
 
Join Date: Feb 2009
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2007hsf
(Thread Starter)
Has anyone changed the gear oil in the transfer case and/or rear differential on their SF? Are the drain plugs and filler plug accessible? Will I need to purchase any gaskets for the plugs?

My '07 SF is currently at 32K miles. I've already replaced the transmission oil at 30K miles with the help of the posts in this forum. Thanks everyone. The owner's manual states to change the gear oil in the transfer case at 60K and at 30K for severe service with SAE 70W/90 (Shell Spirax 'X' Equivalent) but on the hmaservice website it lists SAE [b]75W/90 as the gear oil. Which one is the correct one to use? Any recommendations on the gear oil to use?
2007hsf is offline  
Sponsored Links
Advertisement
 
#2 Old 10-12-2009, 11:31 PM
Senior Member
 
jsinton's Avatar
 
Join Date: Jun 2009
Location: Inverness, Florida
'99 Elantra Wagon '03 Kia Sedona
Posts: 4,385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
jsinton is an unknown quantity at this point
It's up to you. If it was my car, I wouldn't hesitate to use the 75w-85 synthetic stuff at Walmart. Of course you could buy the OEM stuff from Hyundai. Mobil 1 sells a 75w-90 synthetic gear oil.

jsinton is offline  
#3 Old 10-14-2009, 07:22 PM
Junior Member
 
Join Date: Feb 2009
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2007hsf
(Thread Starter)
Thanks jsinton! I'll try some of the gear oil from WM. Is changing both the rear diff and transfer case gear oil at 32k miles too early? I don't tow but my commute is about 50/50 highway/city.
2007hsf is offline  
#4 Old 10-14-2009, 07:31 PM
Senior Member
 
PoMansAWD's Avatar
 
Join Date: Sep 2009
Location: Buffalo NY
Former 2008 Hyundai Santa Fe, GLS, AWD, 2.7L owner. 2008 Honda Odyssey LX
Posts: 947
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
PoMansAWD
Yep, I've got to work up the ambition to do my 2008 AWD now that I'm at 41500mi. I picked up a cpl qts of Walmart Supertec 75w90 synthetic blend gear oil. When I recently drained/filled my transmission, I could see the drain plug on the transfer case. It was a big hex head deal like the trans drain plug. I have yet to look at the rear diff or the fill plugs on the sides of the xfer case and rear diff. Main thing w/ either box is; Make sure you can loosen the fill plugs before you try the drain plugs.

Joel
PoMansAWD is offline  
#5 Old 10-14-2009, 08:03 PM
Senior Member
 
jsinton's Avatar
 
Join Date: Jun 2009
Location: Inverness, Florida
'99 Elantra Wagon '03 Kia Sedona
Posts: 4,385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
jsinton is an unknown quantity at this point
QUOTE (2007hsf @ Oct 14 2009, 07:22 PM)
Quote:
Thanks jsinton! I'll try some of the gear oil from WM. Is changing both the rear diff and transfer case gear oil at 32k miles too early? I don't tow but my commute is about 50/50 highway/city.
Actually, according to the owners manual, it says to inspect at 30k and 60k and to drain/fill at 75k (miles) for the transfer case. For the rear case is never says to drain/fill, just to inspect every 30k. It's up to you, I'd just follow the owners manual.

jsinton is offline  
#6 Old 10-14-2009, 09:38 PM
SENIOR MODERATOR
 
lovemysantafe's Avatar
 
Join Date: Apr 2006
Location: Portland, Oregon (USA)
Drives: 2012 Elantra Limited
Posts: 7,782
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
lovemysantafe is an unknown quantity at this point
QUOTE (jsinton @ Oct 14 2009, 05:03 PM)
Quote:
Actually, according to the owners manual, it says to inspect at 30k and 60k and to drain/fill at 75k (miles) for the transfer case. For the rear case is never says to drain/fill, just to inspect every 30k. It's up to you, I'd just follow the owners manual.
I'm with him...no reason to spend money if not necessary.

- Andrew
'12 Elantra Limited w/Tech - 'Emma'
Titanium Gray / Gray Leather
------------
R.I.P. Robin Williams - 1951-2014
"We had gay burglars the other night. They broke in and rearranged the furniture."
lovemysantafe is offline  
#7 Old 10-14-2009, 10:10 PM
Senior Member
 
PoMansAWD's Avatar
 
Join Date: Sep 2009
Location: Buffalo NY
Former 2008 Hyundai Santa Fe, GLS, AWD, 2.7L owner. 2008 Honda Odyssey LX
Posts: 947
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
PoMansAWD
Thing is; Why would you go through the pain and anguish of removing the fill plug to "inspect" the rear diff oil and not just dump/fill it? Normally I'd agree to leave it alone, just like rear diffs were left for decades, but having changed the rear diff oil on some late model truck/truck based vehicles, the rear diff oil can look horrible, as did the debris magnet. My point is; If you're going to do the xfer case, might as well do the rear.

Joel
PoMansAWD is offline  
#8 Old 10-15-2009, 03:05 AM
Senior Member
 
david-paul-1's Avatar
 
Join Date: May 2007
Location: S. Arizona
Current; 13 GenCpe Track 3.8 Auto, 13 VW CC.. Previous Hyundais; 88 Excel, 06 Azera, 07 Santa Fe
Posts: 1,371
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
david-paul-1
QUOTE (PoMansAWD @ Oct 14 2009, 07:10 PM)
Quote:
Thing is; Why would you go through the pain and anguish of removing the fill plug to "inspect" the rear diff oil and not just dump/fill it? Normally I'd agree to leave it alone, just like rear diffs were left for decades, but having changed the rear diff oil on some late model truck/truck based vehicles, the rear diff oil can look horrible, as did the debris magnet. My point is; If you're going to do the xfer case, might as well do the rear.

Joel
Isn't this part of the drive train?

If I am not mistaken, it should be warrantied for 10 years or 100,000 miles.

I have owned cars in the recent past with well over 100,000 miles and never changed the differential oil, including my 1988 Hyundai Excel with well over 100,000 miles.

This brings to mind a 1976 Oldsmobile Delta 88, Hurst Edition that had with over 200,000 miles and the same gear oil in the rear end.

Just how long do you people actually plan on keeping these vehicles? Forever? Perhaps even longer?

Seriously, quit worrying about things that have no merit, unless you are actually beating the crap out of your Santa Fe. In that case, do what you have to do but chances are, your beat up Santa Fes wont last that long anyway.

Daivd <><

Amateur Radio Call Sign AB7VE

I do not subscribe to the theory;
"If it isn't broken, don't fix it".
david-paul-1 is offline  
#9 Old 10-15-2009, 03:32 AM
Senior Member
 
PoMansAWD's Avatar
 
Join Date: Sep 2009
Location: Buffalo NY
Former 2008 Hyundai Santa Fe, GLS, AWD, 2.7L owner. 2008 Honda Odyssey LX
Posts: 947
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
PoMansAWD
QUOTE (david-paul-1 @ Oct 15 2009, 03:05 AM)
Quote:
Seriously, quit worrying about things that have no merit, unless you are actually beating the crap out of your Santa Fe. In that case, do what you have to do but chances are, your beat up Santa Fes wont last that long anyway.

Daivd <><

The most I've got is 5/60 warranty. I'm a 'subsequent owner' and my 2008 was a rental at one point. Some years back, I was amazed at how black and nasty the rear diff oil looked in my 2005 Chevy Trailblazer 4x4 when I changed it at ~2yrs of age and ~27Kmi. The magnet was covered in goo as well. This vehicle was also a rental at one point in it's life. Is/was there merit in changing it? Possibly not. It makes me feel better knowing what I have in there and the condition of it. Kind of the point in participating in car forums IMO. I don't do chrome and cold air intakes, so I've gotta post about something!

Joel
PoMansAWD is offline  
#10 Old 10-15-2009, 04:10 AM
SENIOR MODERATOR
 
lovemysantafe's Avatar
 
Join Date: Apr 2006
Location: Portland, Oregon (USA)
Drives: 2012 Elantra Limited
Posts: 7,782
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
lovemysantafe is an unknown quantity at this point
I've never had my rear end oil changed out and have never had a problem, now at 129k. This is my experience.

- Andrew
'12 Elantra Limited w/Tech - 'Emma'
Titanium Gray / Gray Leather
------------
R.I.P. Robin Williams - 1951-2014
"We had gay burglars the other night. They broke in and rearranged the furniture."
lovemysantafe is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome