1990 Toyota 4Runner manual transmission fluid

[dfarr67]

Had some used GM Synchromesh F/M, used for two weeks in my Honda before changing to Pentosin, So about 3L and half litre of Amsoil MTF which I was going to use originally- any issues you think?

 

[aquariuscsm]

Is the 4Runner a 75W90 spec?

 

[expat]

I have used Pennzoil syncromesh (which is said to be very thin)
in my 84 Toyota pick up for several years, and love it.

 

[MolaKule]

Toyota specs a dedicated 75W90 for most of their MTs and transfer cases.

A good middle viscosity fluid for same is the Redline MT-75W85:

http://www.redlineoil.com/product.aspx?pid=140&pcid=7

 

[SavagePatch]

Originally Posted By: MolaKule
Toyota specs a dedicated 75W90 for most of their MTs and transfer cases.

A good middle viscosity fluid for same is the Redline MT-75W85:

http://www.redlineoil.com/product.aspx?pid=140&pcid=7


+1 I'm running Redline MT90 in my Tacoma's transmission and transfer case. Awesome stuff. Definitively better cold shifts in the morning.

 

[Killer223]

i use straight 40wt motor oil in my 93 5 speed.

 

[dfarr67]

Well, it's in already- if it doesn't like it....it'll be an expensive trans flush. Using Severe Gear 75-90 in everything else on the truck. On a side note- for manual hubs- what is the best grease to repack?

 

[MolaKule]

Originally Posted By: dfarr67
Well, it's in already- if it doesn't like it....it'll be an expensive trans flush. Using Severe Gear 75-90 in everything else on the truck. On a side note- for manual hubs- what is the best grease to repack?


I strongly suspect come next winter you will want to change it out because:

1) It doesn't have any friction modifiers for the synchro's,

2) It is thicker than a dedicated MTF.

3) It is a differential lube, not an MT lube.

 

[dfarr67]

Clarification, Severe Gear being used in diff's and transfercase only- not trans. Have Amsoil MTF in stock if the Synchromesh isn't up to it. I'm not a big Amsoil fan, but it is locally available.