which diff fluid for nismo

frankiev · 03-06-2016, 01:04 PM

Did a search that ended in frustration so ...
Ill be changing the diff and trans fluid soon . The manual says the diff requires gl5 80w-90 which I cant find in synthetic ,I prefer redline. All I can find is mt85 . I think the weight is ok at 75w-85 but its gl4 not gl5 .Is this ok ? .
The trans will be getting redline 75w-90 .
Help is appreciated

edit. Anyone who read the original post Im sure was confused . Guess I had 1 too many beers when I composed it

Spooler · 03-06-2016, 06:25 PM

Diff fluid is GL-5 75w90. Your transmission fluid GL-4 75w90. Both can be synthetic.

frankiev · 03-07-2016, 06:34 AM

Thanks spooler

barncobob · 03-07-2016, 07:42 AM

important u use right GL#, some trannys may have copper in them and GL5 has a negative effect on CU...not sure on 370z, just use whatever GL they say to.

EzDz · 03-07-2016, 10:28 AM

Redline in tranny, motul with ls additive for the diff

90 ST · 03-07-2016, 11:13 AM

Quote:

Originally Posted by Spooler

Diff fluid is GL-5 75w90. Your transmission fluid GL-4 75w90. Both can be synthetic.

Yep, that's what I use in my Z.

JARblue · 03-07-2016, 11:31 AM

I use MT85 for the 6MT.
75w90 for the differential.

Both Redline

beemerkid · 03-07-2016, 06:28 PM

Redline mt85 for the trans. Diff gets amsoil 80w90, its a synthetic specifically labeled to replace fluids that specify a conventional oil, which is what my owner manual says...

2011 Nismo#91 · 03-08-2016, 09:44 AM

http://www.widman.biz/uploads/Transaxle_oil.pdf
The Difference between GL-4 and GL-5 Gear Oils
Interesting read if you have time.

hooey_b · 04-02-2016, 04:57 PM

I just had my diff serviced...Energy suspension bushings, Z1 high capacity finned diff cover, and I opted for Motul 75w140 competition synthetic.

I had Redline 75w85 in there before the upgrades; the major difference is....well, run your finger through water, then through pudding...the shifts feel smooth and more controlled.

Like butter.

Rusty · 04-02-2016, 06:43 PM

Quote:

Originally Posted by 2011 Nismo#91

http://www.widman.biz/uploads/Transaxle_oil.pdf
The Difference between GL-4 and GL-5 Gear Oils
Interesting read if you have time.

Bit long. But it's a good read.

PongSanity · 04-03-2016, 03:36 PM

I used mobil1 75w90

Sent from my iPhone using Tapatalk

03-06-2016, 01:04 PM	#1 (permalink)
frankiev Base Member Join Date: Apr 2015 Location: so fl Posts: 89 Drives: 2012 370 nismo Rep Power: 10	which diff fluid for nismo Did a search that ended in frustration so ... Ill be changing the diff and trans fluid soon . The manual says the diff requires gl5 80w-90 which I cant find in synthetic ,I prefer redline. All I can find is mt85 . I think the weight is ok at 75w-85 but its gl4 not gl5 .Is this ok ? . The trans will be getting redline 75w-90 . Help is appreciated edit. Anyone who read the original post Im sure was confused . Guess I had 1 too many beers when I composed it Last edited by frankiev; 03-06-2016 at 04:29 PM.

03-07-2016, 10:28 AM	#5 (permalink)
EzDz Enthusiast Member Join Date: Aug 2015 Location: Pittsburgh Posts: 309 Drives: 2016 370z Nismo Tech Rep Power: 10	Redline in tranny, motul with ls additive for the diff __________________ Nismo \| Moore Performance \| AAM \| Tein \| PPE \| Tomei \| Eibach \| Z1 Sponsored: Mishimoto

03-07-2016, 11:31 AM	#7 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	I use MT85 for the 6MT. 75w90 for the differential. Both Redline Chuck33079 and Memphis370Z like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

03-08-2016, 09:44 AM	#9 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,402 Drives: slowly Rep Power: 40569	http://www.widman.biz/uploads/Transaxle_oil.pdf The Difference between GL-4 and GL-5 Gear Oils Interesting read if you have time. Rusty likes this.

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03-06-2016, 06:25 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,837 Drives: 2013 Nismo 370z Rep Power: 2684392	Diff fluid is GL-5 75w90. Your transmission fluid GL-4 75w90. Both can be synthetic.

03-07-2016, 06:34 AM	#3 (permalink)
frankiev Base Member Join Date: Apr 2015 Location: so fl Posts: 89 Drives: 2012 370 nismo Rep Power: 10	Thanks spooler

03-07-2016, 07:42 AM	#4 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	important u use right GL#, some trannys may have copper in them and GL5 has a negative effect on CU...not sure on 370z, just use whatever GL they say to.

03-07-2016, 06:28 PM	#8 (permalink)
beemerkid Base Member Join Date: Aug 2015 Location: Santa Rosa California Posts: 67 Drives: '16 sport 6MT Rep Power: 10	Redline mt85 for the trans. Diff gets amsoil 80w90, its a synthetic specifically labeled to replace fluids that specify a conventional oil, which is what my owner manual says...

04-02-2016, 04:57 PM	#10 (permalink)
hooey_b Base Member Join Date: May 2015 Location: Atlanta Posts: 126 Drives: 2008 G37S 6MT Rep Power: 10	I just had my diff serviced...Energy suspension bushings, Z1 high capacity finned diff cover, and I opted for Motul 75w140 competition synthetic. I had Redline 75w85 in there before the upgrades; the major difference is....well, run your finger through water, then through pudding...the shifts feel smooth and more controlled. Like butter.

04-03-2016, 03:36 PM	#12 (permalink)
PongSanity Enthusiast Member Join Date: Jul 2014 Location: Virgin Islands Posts: 261 Drives: '09 G37s KH3 6MT Rep Power: 11	I used mobil1 75w90 Sent from my iPhone using Tapatalk