Quote:
Originally Posted by flooredrunner
I wasn’t aware that they made two types either so now I am confused and don’t want to ruin anything.
Edit: This is what I found when plugging my 4Rs year and trans into the Red Line site.
“
DIFFERENTIAL OIL
75W90 GL-5 GEAR OIL
The go-to gear oil for most differentials.
For use in both front and rear differentials plus transfer case where applicable
For use in transfer case of 4x4 models”
When clicking on this fluid it shows the hypoid version of the 75w90 not the 75w90ns. I assume this means that I am safe to the the regular 75w90 for hypoid gears in the tcase? I wish they didn’t make it so confusing.
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Well, if it makes your decision easier, the one I linked does say it has friction modifiers in it. I've been using it in my transfer cases and differentials without issue. Something tells me any 90 weight gear oil is going to be fine for our transfer cases. Before using Redline, I used the conventional and synthetic MasterPro brand that Oreilly's sells. From what I've seen so far, they all meet the spec of what Toyota recommends for our rigs.
