Gear oil selection?

[Atlas]

I was readying to do the differential service in the first few thousand miles of ownership. Maybe it's old-school superstition that differentials run hot while they break in and can shed a little bit of metal? Or is there still sense in doing an early change, and then regular changes thereafter?

[Grumpy Bear]

1 hour ago, Atlas said:

I was readying to do the differential service in the first few thousand miles of ownership. Maybe it's old-school superstition that differentials run hot while they break in and can shed a little bit of metal? Or is there still sense in doing an early change, and then regular changes thereafter?

 

Do it early. Yes, hot and shed most early. 

[Black02Silverado]

I change mine out when I get my vehicles then go from there on mileage.  Here is what to use.  

https://www.amsoil.com/p/amsoil-severe-gear-75w-85-100-synthetic-gear-lube-svl/?zo=521390

[diyer2]

I have used this gear lube in ATV, Side x Side and vehicles. 

The SXS was new and at 80 miles developed a front differential whine, changed to this gear lube and it has been quiet.