Go Back   Club Lexus Forums > Lexus Model Forums > IS Models > IS - Second Generation
Sign in using an external account
Register Forgot Password?

IS350 differential fluid change DIY

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 03-22-11, 02:50 PM   #76
Shahryar
Lead Lap
Trader Score: (0)
 
Join Date: Dec 2008
Location: MD
Posts: 424
Send a message via AIM to Shahryar
Default

After reading this thread, I'm leaning towards not doing anything about my differential fluid (I'm at 40k now in my '08 Is350). Also, on a similar note, not worrying about the transmission fluid change either. I've seen that debate in different places but each time, it seems the case for NOT worrying about doing anything about your transmission fluid wins out.
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
__________________
2003-2004: 2001 Blue IS 300 (died when rear ended into another car: http://www.facebook.com/album.php?ai...7&l=fb25c965fe )

2009-2012: 2008 IS 350 SGM w/ Sports Package, non-ML Nav (Bought new 1/2009 from Lexus of Silver Spring, Traded in 2012 for RDX 2013 AWD w/ Tech)
Had Done: Navi Hack w/ Switch install, VAIS SL2Vi

Parents: 2006 SGM IS 350 (2012-present)
Shahryar is offline   Reply With Quote
Old 04-05-11, 04:38 PM   #77
Kurtz
Lexus Fanatic
Trader Score: (1)
 
Join Date: Aug 2007
Location: NC
Posts: 7,814
Default

Quote:
Originally Posted by pfdaxe View Post
My manual states at 60k, 120k etc. if equipt with limited slip diff.
Which none of the ISx50s are.

The ISx50 calls for changing the diff fluid exactly never. Which is how often I plan to change it.

If anyone can point out anybody who has ever had a diff failure from following the manual in this regard please do.


Quote:
Originally Posted by Shahryar View Post
After reading this thread, I'm leaning towards not doing anything about my differential fluid (I'm at 40k now in my '08 Is350). Also, on a similar note, not worrying about the transmission fluid change either. I've seen that debate in different places but each time, it seems the case for NOT worrying about doing anything about your transmission fluid wins out.
The tranny is an even more extreme case in that not only does the manual explicitly state you don't change it, it's physically impossible to do so.


The diff fluid at least can be changed out, it's just that the manual never calls for you to do so and without a mechanical LSD back there I've yet to see any good explanation of why you should bother.
__________________
2008 IS350 - Black Sapphire Pearl/Cashmere - Sport Package, Mark Levinson (no nav), XM, Tanabe Exhaust, F-Sport Intake and Sway Bars
Kurtz is offline   Reply With Quote
Old 09-11-11, 04:47 PM   #78
JohnLX300
Lead Lap
Trader Score: (2)
 
JohnLX300's Avatar
 
Join Date: Apr 2009
Location: SC
Posts: 427
Default

I would think that if Lexus, (because the Manual states that the WS tranny fluid never needs to be changed), should cover the tranny if a failure occurs because of fluid related issues. Just saying!
JohnLX300 is offline   Reply With Quote
Old 06-06-12, 05:17 PM   #79
PandaBear
Rookie
Trader Score: (1)
 
Join Date: Aug 2007
Location: CA
Posts: 97
iamshing
Default

What kind of jack stands do you guys use? Mine doesn't have a deep notch and I'm afraid it will crush the extra long body panel that the jack point marking is on. They seems to be much longer than any other car I've seen in the past.

Ideally I would like to use the scissors jack to get the wheel up, and drop the wheel on some ramp or concrete tiles, so I do not need to buy another set of jack stands. Any other "safe" choice?
PandaBear is offline   Reply With Quote
Old 06-14-13, 08:10 PM   #80
tofupunx
Driver School Candidate
Trader Score: (0)
 
Join Date: Apr 2013
Location: Ontario
Posts: 17
Default

Quote:
Originally Posted by Joe Z View Post
Something just doesn't seem right with that..

It states... "Inspect, Inspect, Inspect"....

I can't believe that the diffo fluid NEVER has to be changed out... There seems to be a drain & refill plug for a reason.

Something you don't easily find on the transmission, but its there too..

Joe Z
My e46 BMW 328i had "lifetime" transmission and diff. oils. I changed them both at 100,000km intervals and the diff. oil still looked mint. "Lifetime" oil is the manufacturer saving themselves money over the covered service period and protecting the original owners. Calling them "lifetime" fludis could very well be a nod to the dealer service network... gotta toss work their way at some point! It would be prudent to change these fluids period. The Canadian manual says 64,000kms for both as previously stated in this thread, I have no clue why it would be any different than US cars. My car by VIN is a "Destination: US" car, RWD with M/T.
tofupunx is offline   Reply With Quote
Old 10-18-13, 07:15 AM   #81
JohnLX300
Lead Lap
Trader Score: (2)
 
JohnLX300's Avatar
 
Join Date: Apr 2009
Location: SC
Posts: 427
Default

I just changed my differential fluid yesterday on my '08 IS250 w/65k. The changing from gear to gear is A LOT smoother that is was before I changed it. It sure does make a HUGE difference in the quality of the ride. My fluid was really dark and that drain plug was covered in shavings. Normal, but I do feel a lot better knowing that that magnet is no clean and ready to pick up any other metal shaving that it wasn't able to pick up before.
JohnLX300 is offline   Reply With Quote
Old 10-19-13, 08:59 AM   #82
carlos3366
Lead Lap
Trader Score: (0)
 
carlos3366's Avatar
 
Join Date: Nov 2011
Location: IS250 Ft Worth, TX
Posts: 427
carlos3366 carlos3366@yahoo.com
Default

replace it, find a good private/independent mechanic.
__________________
carlos3366 is offline   Reply With Quote
Old 12-01-13, 12:31 PM   #83
lx470man
Lead Lap
Trader Score: (1)
 
Join Date: Nov 2004
Location: California
Posts: 609
Send a message via AIM to lx470man Send a message via Yahoo to lx470man
Default

Although the manual states for the 2008 ISF to use 75w85, I see everyone is using 75w90 is it because aftermarket suppliers only make it in this weight? And I guess its OK to use the 75w90?

Also do you guys know the part number for the rear differential crush washer for toyota? I don't want to go to Lexus and pay $4.00 a washer!
__________________
joe z pts.
lx470man is offline   Reply With Quote
Old 12-09-13, 12:46 AM   #84
lx470man
Lead Lap
Trader Score: (1)
 
Join Date: Nov 2004
Location: California
Posts: 609
Send a message via AIM to lx470man Send a message via Yahoo to lx470man
Default

Just finished the rear diff fluid change and I have no idea how JoeZ did it without having to remove the exhaust. The fit is so tight there was no way I was gonna even attempt it without removing the exhaust. As i was changing it out I was thinking to myself if only they made the fill and drain plugs on the left side of the diff. it would make it so much easier and hassle free.
__________________
joe z pts.
lx470man is offline   Reply With Quote
Old 12-09-13, 06:51 AM   #85
4TehNguyen
Lexus Fanatic
Trader Score: (0)
 
Join Date: Jan 2006
Location: Houston, Texas
Posts: 18,252
Default

you don't need to remove the exhaust if you have the standard ratchet extensions and universal joints. Now the 370Z differential that was a test in dexterity
__________________
14 IS350 Nebula Gray/Rioja Red + FSport + ML/Nav + JoeZ Intake/Exhaust
06 IS350 Crystal White/Black + Sport/ML + 2014 IS F Sport Wheels
4TehNguyen is online now   Reply With Quote
Old 12-09-13, 11:54 AM   #86
carlos3366
Lead Lap
Trader Score: (0)
 
carlos3366's Avatar
 
Join Date: Nov 2011
Location: IS250 Ft Worth, TX
Posts: 427
carlos3366 carlos3366@yahoo.com
Default so if one removes the pan 9-10 times, the tranny fluid

will be replaced. That's how i did my camry, drained the fluid three times (drove a few miles in between) and refilled it with new fluid. I will do my differential at 100k miles.


Quote:
Originally Posted by Kurtz View Post
It's not really there on the transmission.

Remove the transmission pan entirely (let alone just pull the plug) and you'll remove roughly 10-15% of the total fluid in the system.

There's a fill hole in case you need to add fluid after repairing a leak, but you can't actually -change- the fluid because there's no way to get even a significant amount of it out.


Now the diff, obviously you CAN change that, but nothing in factory scheduled service ever suggests you do so.

It does suggest inspecting to insure there's no leaks of course.
__________________
carlos3366 is offline   Reply With Quote
Old 06-19-14, 10:29 AM   #87
BAY2LA350
Driver School Candidate
Trader Score: (0)
 
Join Date: Feb 2011
Location: CA
Posts: 30
Default

Sorry to revive this thread, but has anyone with higher mileage had rear diff failures caused by not changing the fluid?

I'm only at 25K miles, but if there are issues with metal shavings (from break in?), I'd rather get rid of them sooner rather than later.

Or, just leave it until it breaks and then have a good excuse for a Torsen LSD.
BAY2LA350 is offline   Reply With Quote
Old 06-19-14, 10:51 AM   #88
Gville350
Lexus Fanatic
Trader Score: (8)
 
Gville350's Avatar
 
Join Date: Mar 2011
Location: South Carolina
Posts: 6,425
Default

^The break-in metal shavings were captured by the magnetic drain plug. It should look something like this :

Click the image to open in full size.
__________________
'06 IS350 - 8.6468 @ 81.81MPH
Mods - SRI, BCRs, full GFX kit
Gville350 is online now   Reply With Quote
Old 08-06-14, 01:22 PM   #89
snackids
Driver School Candidate
Trader Score: (0)
 
Join Date: Mar 2007
Location: IL
Posts: 11
Default

Quote:
Originally Posted by BAY2LA350 View Post
Sorry to revive this thread, but has anyone with higher mileage had rear diff failures caused by not changing the fluid?

I'm only at 25K miles, but if there are issues with metal shavings (from break in?), I'd rather get rid of them sooner rather than later.

Or, just leave it until it breaks and then have a good excuse for a Torsen LSD.
I just recently replaced all the drive train fluids in my 07 IS250 AWD. It had 138K miles on it and I replaced the front/rear differential fluids and the transmission/transfer case fluid. I noticed a slight leak coming from the front differential. You can see the tread I made here:

http://www.clublexus.com/forums/main...tial-leak.html

We put Amsoil 75W-90 in the differentials and after a ton of research, I found out that the actual viscosity you're supposed to use is 85W-90. Now a lot of people will say it's only when the oil is cold where it's thicker, but on another forum at a Mercedes thread, they proved that the 85W-90 was all around in all temperatures a thicker oil and possibly even non synthetic depending on the brand you use. I'm going to swap back to 85W-90 to see if that "band aid' fixes my slow leak.

I only leak 3-4 drops right after I park the car and then it doesn't drip again until I drive it the next day. It could be slowly leaking out while I'm driving so I don' t want to burn up my front differential if it's been slowly leaking while I drive. The capacity for the front differential is less than a quart I believe.
snackids is offline   Reply With Quote
Old 08-31-14, 07:09 PM   #90
Gville350
Lexus Fanatic
Trader Score: (8)
 
Gville350's Avatar
 
Join Date: Mar 2011
Location: South Carolina
Posts: 6,425
Default

So today I took the opportunity to finally do the DIY rear carrier gear oil change. Was pretty straight-forward, as I expected. Instead of using a hand pump or some other off-the-shelf item, I went straight-up backyard mechanic and just used gravity and 6ft of clear tubing. Used Lucas full syn 80w-90 gear oil, and the right from the get-go I could tell it is smoother. So for those that don't wanna spend unnecessary funds on a "pump" you'll use once, twice...whatever, spend the $3 on tubing and do this :

Click the image to open in full size.

Used some electrical tape around the end of the hose and wrapped it around the diff to ensure it didn't pop out of the housing during feeding.

Definitely worth the 1hr!
__________________
'06 IS350 - 8.6468 @ 81.81MPH
Mods - SRI, BCRs, full GFX kit
Gville350 is online now   Reply With Quote
Old 08-31-14, 07:09 PM
 
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
2010 IS-F LSD Differential into 2008 IS-F. Completed. *Pics* MisterSkiz IS F 94 12-07-14 10:21 PM
DIY Rear Differential Drain & Fill LS430 BradTank LS430 17 11-18-14 05:14 PM
Changed Oil/Differentials and Transfer Case Fuids - Not Hard 98Nav400 GX - First Generation 16 11-09-14 07:07 AM
Guide TO Disable (VSC) ES350 by ...Sultanaa sultanaa ES350 (2007 - 2012) 29 02-29-12 07:04 AM
RX 330 Differential drain plug? lexus114 RX - Second Generation 11 10-17-09 04:49 PM


Tags
07, 2007, 430, 80w90, change, changing, cost, differential, diy, fluid, is250, is350, lexus, rear, service, transmission

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 07:04 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info