Definitely. Must have a sight cooling effect maybe as the oil ‘circulates’?
I change my diff oil every other year
When it was my main car it was engine oils every 5k and all trans oils annually, mainly as all the fluids were foc.
We have loads of BPW trailer alxes at work and they use BPWs own special blue grease and the hub is warranted for 500k and when you take it down the bearings have no grease on them and no wear or any marks at all weird ****!