Gear oil

[240friendly]

what kind of gear oil or weigth should I use on my 1990 240SX differentail and transmission?  I live in Phoenix, AZ.  Any suggestion?

[West]

Check out <a href="http://www.redlineoil.com/

I" target="_blank">http://www.redlineoil.com/

I</a> use the Lightweight Shockproof Gear oil in both my cars and love it. Its called lightweight but its actaully heavier than the stock weighted oil. I use a 75W140 weight oil. And I reccomend all 5speed 240SX owners do the same. Stock is a 75w-90 so it dosent hurt to get a 75W140. I would reccomend getting a GL4 Based oil, the shockproof stuff is GL5 and can hurt your syncro's.

[240friendly]

is that for both 5 speed tranny and differentail?

[West]

Differentials can use the heavier weight too. I think Redline has something like 75w140NS. Its made just for Differentials, I think. Read about it on their site.

[240friendly]

Thanks West...You have been helpful

[Lex Zarza]

Need more details i am planing to change my transmission oil by changing my clutch. i've notice 75w 80 is an GL4 and 75w 90 is Gl5 what is the 140 on???
I need help understanding.

[jr_ss]

Perhaps you should check the date before commenting on 20yr old posts.

Moving forward, 75w-140 is the weight of the oil. The first number indicates the viscosity cold. The second number is what it becomes once warm.

[nick_d_240sx]

Per the 1988 Nissan 200SX S13 CA18DET Service Manual.
https://i.imgur.com/NDhrG1hh.jpg

[jedi03]

lol searched but not well enough!