What oil to use in rear-diff?
#32
Advanced
iTrader: (3)
Just changed the rear diff fluid on a 2011 ISF at 29,900 miles. Replaced it with Redline 75W-90 GL5 rating.
The magnet on the drain plug had a nice gooey layer of shavings, and the diff fluid color was a little bit dark red going on black.
If you drive hard and power out of corners a lot (ISFs with torsen LSD,) I would recommend changing it at 30k or earlier. I think changing it at 60k is a little too long.
The magnet on the drain plug had a nice gooey layer of shavings, and the diff fluid color was a little bit dark red going on black.
If you drive hard and power out of corners a lot (ISFs with torsen LSD,) I would recommend changing it at 30k or earlier. I think changing it at 60k is a little too long.
#34
Lead Lap
iTrader: (1)
Don't bother inspecting it. If you know you have been rough with the car or have 40000miles on it, replace it. This is for 2008 to 2009. I think the diff with LSD (2010-2014) requires replacing earlier. It's an easy job, drain from the bottom and fill on top until the fill hole spills over. Keep in mind, the fluids for non lsd and with are different.
Last edited by Compthis; 07-30-14 at 05:55 AM.
#36
Tech Info Resource
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#38
Tech Info Resource
iTrader: (2)
Somebody is trying to make you pay more for than you need. Any GL-5 gear oil is sufficient. Even the weight isn't a big deal for street applications. If you are tracking or drag racing, then you might want to consider a premium oil designed for shock loads, but for normal street use, it's not a big deal at all.
#39
Pit Crew
iTrader: (1)
any one have a good brand of diff oil they recommend for 2012 plus isf? every one states to just fill the differential from the upper left (my right) portion and just let it over fill? how many quarts do you think is need for isf 2012?
Last edited by lobuxracer; 01-14-18 at 04:04 PM.
#40
The service schedule on the lexus site doesn't mention diff fluid change anywhere but I see a lot of us have done it. Are we changing as a preventative measure? My11 BTW.
#41
Tech Info Resource
iTrader: (2)
1.7 quarts. Any GL-5 oil will do. I ran Redline in mine before I put the OS Giken LSD in it. Now I run Giken's oil exclusively.
#42
Driver School Candidate
iTrader: (1)
I'm starting to get OCD like I do on my FZJ80, Ha! Thanks Lobux!
#43
Tech Info Resource
iTrader: (2)
Curious are you running a OSG diff? Will the 80W-250 be too heavy for my stock 2012 diff? I was about to pull the trigger on my 60K with Motul Gear 300 LS. I noticed that there is also a regular Motul Gear 300 (non-LSD). Perhaps Motul GEAR FF 75W-140 (LSD) could be an option as well? http://speedfreaksusa.com/i-12012852...l-1-05-qt.html
I'm starting to get OCD like I do on my FZJ80, Ha! Thanks Lobux!
I'm starting to get OCD like I do on my FZJ80, Ha! Thanks Lobux!
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1wrenchguy (01-20-18)
#45
Thanks
David