Gear oil diff

How do I find out what diff oil to top off 2.7 auto 2013 with elect locking diff? 2wd

 

Page 458 in your owners manual says 75w-85 GL-5

Free digital manuals can be had at Toyota's website if you don't have the book.

75-85 may not be as common to find as 75-90 for OTC products, nothing wrong with using 75-90

 

I use 85-140 bc I’m a cool kid

 

See what is available for you!
You pick dealer or parts store or Walmart.
Just drain and refill diff with what get!
Not sure about mixing the synthetic with Dino?
Oil seems between 75-140!
75-90 synthetic and Dino are available here mostly but not always.
80-90 usually always!
3 quarts will be more than enough.
Easy to do open the fill plug first!
Fill till it comes out the fill hole!
Miss my standard same process.