Changing Differential oil...

[Fiat88]

So, in a week or so I want to change my differential oil. I have some questions since I've never changed diff. oil before...

1. What's the specific gear oil to use on my '79 auto? Any recommended brand? Thanks Fellow-Fiat guys & gals.

[ga.spyder]

I dont think they are too type specific.Any 75-90w gear oil will work.A lot of people use synthetic.I just bought gear oil from NAPA today to change the diff oil in my 76.
Craig

[Fiat88]

Thanks ga.spyder!

[Fiat88]

This is it?http://www.international-auto.com/lubricants/liqui-moly-75w90-gear-oil.cfm

[ga.spyder]

That will work.It is a synthetic and pretty pricey.I just use plain gear oil,which was $5 a quart.I got it at NAPA ,but all parts stores handle it.Seems to work just fine.
http://www.napaonline.com/Search/Detail ... 0006411584
Craig

[Fiat88]

What's the filling capacity in Liters ?

[ga.spyder]

It is 1.3 liters(3.1 pints).I dont know if it is packaged the same where you are,but 1 U.S. quart will do it.
Craig

[pope]

3.1 pints is equal to one quart?
Is that new southern math? How about 1 1/2 quarts.

[ga.spyder]

I mis-cifered my gazintas