differential fluid

[ejhiggins]

when changing the rear differential fluid on my 95 540 which fluid do you guys recommend and do i need some of that limited slip additive also?

[632 Regal]

85w140 if LSD, 85w90 if open, no additives. synthetic of course.

[ejhiggins]

what brand do you recommend?

[bahnstormer]

you would put synthetic into a diff that has has regular all its life?

[632 Regal]

I think Mobil 1 has both weights.

[Bill R.]

old.







you would put synthetic into a diff that has has regular all its life?