Gear oil question

Skorch · 02-01-2012, 01:58 AM

I'm doing my 4.08 gears install this weekend and wanted to know what gear oil to use. I read that Redline 75w90 was the way to go, but when I called around my local shops, the only one that carried it only had 80w90. Will this work for me or do I need to try another brand?

Also, when I spoke to one of the Nissan parts guys, he recommended I get GL-5 80w90. Is there a huge difference between 75w90 and 80w90? If so, what would you recommend?

Thanks!

tranceformer · 02-01-2012, 06:22 AM

I've been using gl5 80w90 for a while. Seems to work well so far.

Skorch · 02-01-2012, 10:18 AM

Quote:

Originally Posted by tranceformer

I've been using gl5 80w90 for a while. Seems to work well so far.

Thanks for the info! Was it Redline or some other brand that you use?

6MT · 02-01-2012, 10:21 AM

I use Red-Line 75W90 synthetic. Much better than the crud attracting stuff Nissan uses.

TreeSemdyZee · 02-01-2012, 11:01 AM

I just put in Red Line 75w90.

This is the best price I found. Very fast shipping.

Red Line 75W90 GL-5 57904 Differential Fluid - Nissan performance parts

Skorch · 02-01-2012, 11:12 AM

Quote:

Originally Posted by TreeSemdyZee

I just put in Red Line 75w90.

This is the best price I found. Very fast shipping.

Red Line 75W90 GL-5 57904 Differential Fluid - Nissan performance parts

Woah wait a sec, these guys are local to me and are like 3 miles away from where I live. Thank you so much for sharing that!

TreeSemdyZee · 02-01-2012, 11:39 AM

Quote:

Originally Posted by Skorch

Woah wait a sec, these guys are local to me and are like 3 miles away from where I live. Thank you so much for sharing that!

Cool. Glad I could help.

02-01-2012, 01:58 AM	#1 (permalink)
Skorch Enthusiast Member Join Date: Feb 2009 Location: Phoenix, AZ Posts: 469 Drives: 2012 370Z Rep Power: 540	Gear oil question I'm doing my 4.08 gears install this weekend and wanted to know what gear oil to use. I read that Redline 75w90 was the way to go, but when I called around my local shops, the only one that carried it only had 80w90. Will this work for me or do I need to try another brand? Also, when I spoke to one of the Nissan parts guys, he recommended I get GL-5 80w90. Is there a huge difference between 75w90 and 80w90? If so, what would you recommend? Thanks! __________________ '12 370Z + Sport \| Stillen Gen3 Intakes \| Stillen UD Pulley \| Motordyne M370 \| FI Exhaust \| FI HFCs \| 4.08 Gears \| Uprev tuned

02-01-2012, 06:22 AM	#2 (permalink)
tranceformer A True Z Fanatic Join Date: Nov 2008 Location: Palm Beach, FL Posts: 1,213 Drives: 2009 370Z PW 6MT Rep Power: 267	I've been using gl5 80w90 for a while. Seems to work well so far. __________________ Ray 2009 370Z Base Sport 6MT / 12.860 @ 109.09mph / 1.921 60ft / street tires official 1/4 mile track times

02-01-2012, 10:21 AM	#4 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1789	I use Red-Line 75W90 synthetic. Much better than the crud attracting stuff Nissan uses. __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

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02-01-2012, 11:01 AM	#5 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 59 Posts: 4,880 Drives: '09 370 & ‘14 Juke Rep Power: 27408	I just put in Red Line 75w90. This is the best price I found. Very fast shipping. Red Line 75W90 GL-5 57904 Differential Fluid - Nissan performance parts