Gear oil - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240friendly · 06-29-2001, 03:19 PM

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** · 06-29-2001, 03:28 PM

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 · 06-29-2001, 04:24 PM

is that for both 5 speed tranny and differentail?

**West** · 06-29-2001, 06:39 PM

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 · 06-29-2001, 06:40 PM

Thanks West...You have been helpful

Lex Zarza · 01-27-2020, 10:05 PM

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 · 01-28-2020, 07:11 AM

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 · 01-28-2020, 07:33 AM

Per the 1988 Nissan 200SX S13 CA18DET Service Manual.

jedi03 · 01-28-2020, 07:38 AM

lol searched but not well enough!

01-28-2020, 07:11 AM	#7
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,410 Trader Rating: (35) Feedback Score: 35 reviews	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. __________________ My SR20VET Does your VTC gear rattle in your S14/15 SR? PM me.

01-28-2020, 07:33 AM	#8
nick_d_240sx Leaky Injector Join Date: Dec 2017 Location: Oregon Age: 42 Posts: 98 Trader Rating: (0) Feedback Score: 0 reviews	Per the 1988 Nissan 200SX S13 CA18DET Service Manual. __________________ S13

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06-29-2001, 03:19 PM	#1
240friendly Join Date: Jun 2001 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	what kind of gear oil or weigth should I use on my 1990 240SX differentail and transmission?  I live in Phoenix, AZ.  Any suggestion?

06-29-2001, 03:28 PM	#2
West OMNOMNOMNOM Join Date: Dec 2000 Location: Denver, CO Age: 43 Posts: 6,456 Trader Rating: (0) Rides Gallery: West Feedback Score: 0 reviews	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.

06-29-2001, 04:24 PM	#3
240friendly Join Date: Jun 2001 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	is that for both 5 speed tranny and differentail?

06-29-2001, 06:39 PM	#4
West OMNOMNOMNOM Join Date: Dec 2000 Location: Denver, CO Age: 43 Posts: 6,456 Trader Rating: (0) Rides Gallery: West Feedback Score: 0 reviews	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.

06-29-2001, 06:40 PM	#5
240friendly Join Date: Jun 2001 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	Thanks West...You have been helpful

01-27-2020, 10:05 PM	#6
Lex Zarza Join Date: Aug 2019 Location: Arizona Age: 29 Posts: 19 Trader Rating: (0) Feedback Score: 0 reviews	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.

01-28-2020, 07:38 AM	#9
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,836 Trader Rating: (8) Feedback Score: 8 reviews	lol searched but not well enough!