4runner transfer case. A topic beaten to death. I just need to know one thing

Joined
Nov 27, 2017
Messages
15
Location
New Orleans
Does the transfer case on the 5th gen 4runner contain any brass, copper or soft metals? I know many people are using gl-5 in theirs and I would like to do the same but I’ve been obsessed with the idea of gl5 eating up the soft metals.
 
Joined
Nov 23, 2020
Messages
242
2019 Tacoma drained the factory 75w out about a week after it was new

Lucas 75w90 changed it again at 50k with same was as clean as new and zero metals visual

Now at 91k no issues ever freezing cold or blistering hot with a few Colorado off road mountain passes in 4 wheel

As for soft metals I do believe there is a internal part or two that are "soft" metal
 

RodneyM

Thread starter
Joined
Nov 27, 2017
Messages
15
Location
New Orleans
2019 Tacoma drained the factory 75w out about a week after it was new

Lucas 75w90 changed it again at 50k with same was as clean as new and zero metals visual

Now at 91k no issues ever freezing cold or blistering hot with a few Colorado off road mountain passes in 4 wheel

As for soft metals I do believe there is a internal part or two that are "soft" metal
Good to know. Probably going to do valvoline75w90 in all 3
 
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