Differential gear lube.
This may be like asking "which is the best brand of oil" but I need opinions. I'm due to change the differential gear lube in my 2005 Dodge 2500. Last time I used Mobil 1 synthetic 75W-90. I should...
Forum Discussion
ib516 wrote:
I has the same dilemma. I used 75w90 synthetic, and the ring gear area of the rear diff cover would have the paint burnt off it at the end of towing season. I added a huge aluminium rear diff cover and then filled it with Amsoil 75w110 synthetic - which for me was best. I worried about 75w140 being too viscous at low temperatures, like our -40* Canadian winters.
BEFORE:
AFTER:
Note the puddle visible here is just water.
Well, I'm a little concerned about the 75-140 here in the Texas heat! I'm thinking the 75w110 might be fine assuming I go with Amsoil. There are a lot of folks over on the TDR Dodge forums using Amsoil.
