Diff / Transfer fluid

My bad, I must have been thinking of a different video. I shall rewatch and also find the reference to where you should use GL-4.

 

I did rewatch the video, it certainly explains the reasoning behind using the GL-4 in a manual transmission. I might be mixing up my sources but I swear I remember there being talk of the 4runner transfer case needing GL-4 as well.

Here is a good article on the fluid replacements. It does reference the 75W fluids recommended for the transfer case. But doesn't specifically mention GL-4.

https://trail4runner.com/2018/12/24/4runner-driveline-fluids-how-and-when-to-change-them/

 

I'm still confused gl4 or gl5
I'm sure that's what toyota wants so they buy there can of $$ fluid

 

Red Line MT-LV is GL-4.

 

Two years ago a forum member contacted Toyota asking about the transfer case oil. A Toyota rep said they recommend 75W GL4 for fuel economy but 75W-90 GL5 is ok.

See this thread, posts #13 and #24.
https://www.4runners.com/threads/wo...ead-of-the-70-toyota-fluid.12858/#post-222929

 

My experience with this truck purchased about 3 months ago and driven during -35C weather before changing driveline fluids was that the transfer case had a loud clunk noise when shifting from 4x4 back to 4x2 which I didn't like so looked around for correct fluid. After changing whatever fluid was in transfer case from previous owner to Red Line MT-LV 70W/75W GL-4 gear oil the clunk went away and now shifts from 4x to 2x without noise at any temperature. Guessing that most 75W90 gear oil works fine in these truck x-case in warm weather but maybe not so much in extreme cold, I'll continue using Red Line MT-LV.

 

^^^This... Use the Redline MT-LV

 

Ours has the loud clunk, I'm 99 % sure it's factory fluids because it was a previous rental. Redline does look like the best transfer case choice out there to me.

 

I think @mainerunr was correct. You clearly have trouble with reading comprehension. Or, you're just trolling because you have nothing better to do.

Just because I pointed out that the maintenance log doesn't actually require a 30K fluid change, doesn't mean that I don't think fluids need to be changed. I don't know why I keep trying to explain it to you, though, as you're obviously not getting it.

Have a super day!

 

Is Redline available in a 75W? Or, are you using a different viscosity? I'll be doing mine again this spring.

Edit: found it. I think this is what is going on mine next.