Manual Trans Diff Fluid question

I have a 2.7 - 4 wheel drive - manual trans and just changed trans and diff with Mobil 1 Synthetic LS 75W-90. Can I use Walmart Super-Tec instead ? Do I need LS or is that just for auto trans ? I do it every 30,000 - wondering if I can save some $$. Thanks for any reply or link.

https://www.walmart.com/ip/Super-Tech-Full-Synthetic-Gear-Lubricant-75W-90-1-Quart/309470123

 

I have used MT90 before and used this for my last oil change. To be honest I can’t tell a difference shifting. The Stalube GL4 is $30 on Amazon.
CRC 24239 Multi-Purpose Gear Oil, SAE-Gallon, 128. Fluid_Ounces

CRC Sta-Lube API/GL-4 Multi-Purpose Gear Oil 85W90, Sta-Lube, 1 Gallon, Hypoid Gear Oil, Yellow Metal Safe, Anti-Rust and Anti-Wear Ep Additives

https://www.amazon.com/dp/B000M8RYMC/ref=cm_sw_r_cp_tai_RlWYDbF8WM4ZA

 

Thanks but I thought we were supposed to use

$30 75w-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75w-90 not 85w-90 - don't know if it makes that much difference or not - does it ?

 

When I had my 5 speed, I tried the MT90 and didn’t notice a difference either, but I guess it has additives to protect the synchros. Who knows? Probably just marketing.

 

I don’t believe it makes any difference. I also tow a trailer a good bit. The manual calls for a GL3 or GL4 oil. Most you find are GL5.
I also run run SuperTech 80-90 in my diffs. The only synthetic I use is in the transfer case.

 

The Stalube has no sulfur in it from what I can see.
This is from my manual:

Manual transmission
Gear oil capacity (Reference)
2.7 L 4-cylinder (2TR-FE) engine
4.0 L V6 (1GR-FE) engine
2WD models
2.7 qt. (2.6 L, 2.3 Imp.qt.) 4WD models
2.3 qt. (2.2 L, 1.9 Imp.qt.)
1.9 qt. (1.8 L, 1.6 Imp.qt.)
Gear oil type
Gear oil API GL-3 (GL-4)
Recommended gear oil viscosity
SAE

$30 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90

 

Thanks for replies guys.

 

I run 85w140 Lucas in mine and i havent had any issues. It's a little bit stiffer to shift when its below 30* outside until it warms up for a minute or two. After that i can't tell a difference from the 75w90

 

It was 20F today and not even Thanksgiving yet - think I'll stick with the 75 - I like somethings stiff but not shifting. Thanks.

 

Any GL-4 will work fine ..a GL-5 that is formulated to help with yellow metals will do just fine as well



I have been using MOBIL 1 for about the past 25k miles.... No issues. (2.7L 4X4 Manual Trans)

 

Thanks.