accordr33

I am trying to change out diff. fluid and Trans. fluid.
Need your guys help on which one to use.

Could I use 75w90ns for trans. and use 75w90 for diff?
Or could I use 75w90 for both?

Not quite sure what the difference is between the two.

75W90 NS
This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.

75W90
Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.


Thanks

iam7head

the diff oil is 75w90 so the redline stuff is fine

but our tranny uses 10 w30 weight instead of 75w90, so that will not work.
i use redline 75w90 on my miata tranny and diff.