What's the best diff fluid for 3.76LSD? Read through many old threads!
#16
Lexus Test Driver
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75w-90 is a pretty universal weight for gear oil on almost all diffs that sees daily use. But the different weights are for people who use their cars for different purposes. The first number in the gear oil means the pouring consistency that it has when cold. The last number is the oil consistency when it is at full operating temperature.
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UNCLEBUX (01-22-19)
#18
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hears an additive from amsoil for chatter issue with lsd:
http://www.amsoil.com/StoreFront/ada.aspx
What is currently in my stock diff:
Amsoil 75w-110
What will be in my LSD differtial:
Amsoil 75w-110
http://www.amsoil.com/StoreFront/svt.aspx
if you really want 74w-140
http://www.amsoil.com/StoreFront/svo.aspx
![](http://i44.tinypic.com/9v9rsy.jpg)
DIY changing Differential Fluid.
https://www.clublexus.com/forums/per...ial-oil-2.html
http://www.amsoil.com/StoreFront/ada.aspx
What is currently in my stock diff:
Amsoil 75w-110
What will be in my LSD differtial:
Amsoil 75w-110
http://www.amsoil.com/StoreFront/svt.aspx
if you really want 74w-140
http://www.amsoil.com/StoreFront/svo.aspx
![](http://i44.tinypic.com/9v9rsy.jpg)
DIY changing Differential Fluid.
https://www.clublexus.com/forums/per...ial-oil-2.html
Last edited by sam430; 03-17-10 at 01:58 AM.
#19
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My MAIN goal is to have the BEST protection diff fluid with the lightest weight (still suitable for my location's climate range) that would have the least power drag (or inefficiency).
I don't want to have a molasses thick diff fluid that would create even worse gas mileage than I am already getting and rob me of power.
I don't want to have a molasses thick diff fluid that would create even worse gas mileage than I am already getting and rob me of power.
#21
Lexus Champion
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My MAIN goal is to have the BEST protection diff fluid with the lightest weight (still suitable for my location's climate range) that would have the least power drag (or inefficiency).
I don't want to have a molasses thick diff fluid that would create even worse gas mileage than I am already getting and rob me of power.
I don't want to have a molasses thick diff fluid that would create even worse gas mileage than I am already getting and rob me of power.
http://www.amsoil.com/StoreFront/svg.aspx
go amsoil
![](http://i44.tinypic.com/1z5t6w9.jpg)
Last edited by sam430; 03-17-10 at 10:32 AM.
#22
Lexus Test Driver
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Believe what you will but I've always been told by Curt Aigner that the stock factory diff uses 80w-140 and have found that it works best for all racing application that I've put it to. You also know that the higher operating range is good for track use since the oil won't break down right?
#23
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Last edited by ChrisK; 03-17-10 at 11:54 AM.
#24
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