Does any one know about differentals

I was wonderin about how often should the Diff. fluid be changed, and does it vary with different auto's?

60-80k and when you change it, change it with the equivelent synthetic for fuel economy.

Most of the vehicles I have ever encountered have followed the following schedule: never

and the diff always outlasts the rest of the vehicle.

if it has a limited slip, especially one using clutch plates and not clones, change it.

synthetic is ok, but certain syn formulations HAVE in the past been murder on the glue of fiber clutch plates. but fwiw, I put amsoil syn in the front end of my F150 open diff and its been in there for 200K and still ticking.

Yea, synthetic will not ever break down components and will onyl make them last longer.

Thanks guys!

No problem and good luck.

No problem and good luck.


I was gonna put 75-90 Mobil 1 in the Differentials on my 93. Is this O.K.?

What does it call for ?

80w90?

What does it call for ?

80w90?

Yes.

Should be fine.

Make sure you have all the old out before you add the synthetic.

Should be fine.

Make sure you have all the old out before you add the synthetic.


What do you have in yours?

conventional 80w90