i just changed the rear end fluid and i was surprised that it only took 1.5 bottles of fluid. i also put in the 4 oz. bottle of gm additive. do most of you usually use more than what i did? also, i noticed that the fluid that came out had a blue tint. could this mean the fluid that was in before was that color?

 

Not sure about the color part of it but if I remember right mine took ruffly around 1.5qts. Maybe slightly more.

Aaron