DIY Changing rear differential gear oil - Page 9 - MyG37

Go Back  MyG37 > Tech Area > D.I.Y. Installations/Modifications
Reload this Page >

DIY: Changing rear differential gear oil

Notices
D.I.Y. Installations/Modifications Do It Yourself guides and information for the G37. Stickies approved by Administrators and Moderators.

DIY: Changing rear differential gear oil

Reply

 
 
 
Old 07-21-2016, 02:50 PM
  #121  
SepaG
Registered User
 
Join Date: Oct 2015
Location: SE PA
Posts: 15
Thanks: 0
Thanked 1 Time in 1 Post
I purchased some MotylGear 75w90 for my front and rear diffs (12 g37x sedan).


This has some different properties than Motul Gear 300 and I was wondering if it still ok to use? Anyone have experience with it? A lot of the viscosities appear similar.

Motul Gear 300 Properties:
Specially formulated for racing and high performance cars: Circuit, Rallye, Raid...
All gearboxes and hypo d rear axles without limited slip system.
All types of cars: Circuit, Group A, Rallye, 4WD, passenger cars...
For hypo d rear axle with limited slip differential, use MOTUL 90 PA or HYPO SYNT LS.
Meets SAE 75W to 90 manufacturers' requirements.

STANDARDS: API GL4 and GL5 / MIL-L-2105D
Very high lubricating power which decreases friction and wear.
Very easy gear shifting.
Thermal stability under high temperature.
Unshearable oil film, even under extreme working conditions.
Extreme pressure, Anti-wear, Anti-corrosion, Anti-foam.

100% synthetic lubricant.Multigrade.
Viscosity grade SAE 75W-90
Density at 15C (59F) ASTM D1298 0.868
Viscosity at 40C (104F) ASTM D445 105 mm2/s
Viscosity at 100C (212F) ASTM D445 14.2 mm2/s
Viscosity index ASTM D2270 140
Flash point ASTM D92 200C / 392F
Pour point ASTM D97 -39 C / -38F


MotylGear 75w90 Properties:
Specially recommended for gearboxes hard to shift
All gearboxes and hypo d rear axles without limited slip system.
All types of cars: Circuit, Group A, Rallye, 4WD...
In gearboxes and rear axles with limited slip system, use MOTUL 90 PA or HYPO BM LS.
In automatic gearboxes, use MOTUL DEXRON IID or MOTUL TRANSMISSION FLUID.
Meets SAE 75W to 90 manufacturers requirements.

STANDARDS API GL4 and GL5 / MIL-L-2105D
Very high lubricating power which decreases friction and wear.
Very high fluidity under low temperatures which allows easier gear changing.
Thermal stability under high temperature.
Extreme pressure, Anti-wear, Anti-corrosion, Anti-foam.

Viscosity grade SAE 75W-90
Density at 15C (59F) ASTM D1298 0.883
Viscosity at 40C (104F) ASTM D445 81 mm2/s
Viscosity at 100C (212F) ASTM D445 14.5 mm2/s
Viscosity index ASTM D2270 188
Flash point ASTM D92 200C / 392F
Pour point ASTM D97 -48C / -54F


SepaG is offline  
Reply With Quote
Old 08-21-2016, 07:18 PM
  #122  
Na1ddo
Registered User
 
Join Date: Sep 2015
Posts: 29
Thanked 1 Time in 1 Post
Thank for the good DIY. Can't wait to tackle this next week!
Na1ddo is offline  
Reply With Quote
Old 09-03-2016, 10:17 AM
  #123  
ricpaq
Registered User
 
Join Date: Dec 2010
Location: Michigan
Posts: 14
Thanked 0 Times in 0 Posts
Originally Posted by ricpaq View Post
It's hard for me to identify whether I have LSD differentials on my G37X AWD Sedan. I would like to purchase Mobil 1 Synthetic Gear Lube LS 75W-90 for both front and rear differentials. Is this product OK to use in my car in the event I don't have LSD?
I thought I would try again to get my answer before I put Mobil 1 Synthetic Gear Lube LS 75W-90 into my front and rear differentials. Is this oil safe to use in my G37x?
ricpaq is offline  
Reply With Quote
Old 09-03-2016, 11:43 AM
  #124  
ricpaq
Registered User
 
Join Date: Dec 2010
Location: Michigan
Posts: 14
Thanked 0 Times in 0 Posts
Question

Originally Posted by ricpaq View Post
I thought I would try again to get my answer before I put Mobil 1 Synthetic Gear Lube LS 75W-90 into my front and rear differentials. Is this oil safe to use in my G37x?
Is there anyone here knowledgeable of the G37x? Is this thread still active?
ricpaq is offline  
Reply With Quote
Old 09-03-2016, 12:14 PM
  #125  
tite_tite
Registered User
 
Join Date: Aug 2014
Location: Houston, TX
Posts: 250
Thanked 14 Times in 12 Posts
Originally Posted by ricpaq View Post
Is there anyone here knowledgeable of the G37x? Is this thread still active?
Chk out this thread.. GL

https://www.myg37.com/forums/d-i-y-i...ferential.html
tite_tite is offline  
Reply With Quote
The Following User Says Thank You to tite_tite For This Useful Post:
ricpaq (09-03-2016)
Old 09-03-2016, 01:19 PM
  #126  
Jsolo
Insane & Delirious
iTrader: (14)
 
Jsolo's Avatar
 
Join Date: Oct 2011
Location: Chicago, 2012 G37S Sedan 6MT
Posts: 4,831
Thanked 347 Times in 292 Posts
Your best source would the owner's manual or service manual.
Jsolo is offline  
Reply With Quote
The Following User Says Thank You to Jsolo For This Useful Post:
ricpaq (09-03-2016)
Old 09-03-2016, 02:02 PM
  #127  
ricpaq
Registered User
 
Join Date: Dec 2010
Location: Michigan
Posts: 14
Thanked 0 Times in 0 Posts
Originally Posted by tite_tite View Post
Thank you for the link. Now I have the information I needed. BTW, with 55K, my rear diff fluid showed particles and nasty film as I poured it out of the drain pan. The magnetic had a good load of gunk on it. So, I believe this change is well over due.
ricpaq is offline  
Reply With Quote
Old 09-18-2016, 08:25 PM
  #128  
pahanorlando
Registered User
 
Join Date: Jul 2016
Location: Central Florida
Posts: 61
Thanked 5 Times in 5 Posts
Did mine today. Nice and easy. Toughest was cleaning up pump

I started with car jack, but ended up removing it and finishing everything without it. Car jack was in a way so it kind of bothered me.

Thanks a lot for the DIY.
pahanorlando is offline  
Reply With Quote
Old 04-19-2017, 05:21 AM
  #129  
inf4mOus
Registered User
 
Join Date: Nov 2016
Posts: 92
Thanked 1 Time in 1 Post
What kind of oil can I use for my G35 2008 6mT for the read diff?
inf4mOus is offline  
Reply With Quote
Old 04-19-2017, 05:44 AM
  #130  
inf4mOus
Registered User
 
Join Date: Nov 2016
Posts: 92
Thanked 1 Time in 1 Post
I have read every post in the thread but yet still have trouble deciding the best replacement oil.

I am deciding between
OEM
Mobil 1 Synthetic LS 75W90
Amsoil

Suggestions??? I have a 2008 G35 6MT. I believe this hasnt been changed in 50k miles
inf4mOus is offline  
Reply With Quote
Old 04-19-2017, 12:00 PM
  #131  
Jonesmeister11
Premier Member
iTrader: (1)
 
Jonesmeister11's Avatar
 
Join Date: Mar 2014
Location: Dallas
Posts: 633
Thanked 48 Times in 44 Posts
Originally Posted by inf4mOus
I have read every post in the thread but yet still have trouble deciding the best replacement oil.

I am deciding between
OEM
Mobil 1 Synthetic LS 75W90
Amsoil

Suggestions??? I have a 2008 G35 6MT. I believe this hasnt been changed in 50k miles
I used motul 75w 140 and haven't had any problems. I would use it again.
Jonesmeister11 is offline  
Reply With Quote
Old 04-19-2017, 12:05 PM
  #132  
Jsolo
Insane & Delirious
iTrader: (14)
 
Jsolo's Avatar
 
Join Date: Oct 2011
Location: Chicago, 2012 G37S Sedan 6MT
Posts: 4,831
Thanked 347 Times in 292 Posts
75W140 might be ok for hot climates. In the snow belt, I run redline 75w90.
Jsolo is offline  
Reply With Quote
Old 04-19-2017, 04:06 PM
  #133  
Jonesmeister11
Premier Member
iTrader: (1)
 
Jonesmeister11's Avatar
 
Join Date: Mar 2014
Location: Dallas
Posts: 633
Thanked 48 Times in 44 Posts
Originally Posted by Jsolo
75W140 might be ok for hot climates. In the snow belt, I run redline 75w90.
Yeah, I'm in Dallas.
Jonesmeister11 is offline  
Reply With Quote
Old 04-19-2017, 05:15 PM
  #134  
inf4mOus
Registered User
 
Join Date: Nov 2016
Posts: 92
Thanked 1 Time in 1 Post
I just bought OEM from Nissan store. Its penzoil
inf4mOus is offline  
Reply With Quote
Old 07-11-2018, 01:14 PM
  #135  
johnnychobani
Registered User
iTrader: (2)
 
Join Date: Jul 2018
Location: Seattle,WA
Posts: 45
Thanks: 0
Thanked 5 Times in 5 Posts
Has anyone used 75w140 in cooler climates? I lived in the PNW and I rarely drive the car since its a weekend car. I ordered the wrong viscosity and hoping it would work without returning it but if you guys think its going to cause some issue then I will switch it out.
johnnychobani is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: DIY: Changing rear differential gear oil


Archive Advertising Cookie Policy Privacy Statement Terms of Service

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.