Highway K's and air lockers

[SlowRide]

I only get a chance to go wheeling once a fortnight these days, and the other 13 days in the cycle i'm usually stuck on the black top. Just curious if all this highway mileage is bad for my ARB air locker, bad for my diff, or will it have no impact at all beyond the scope of regular mechanical wear?

[weeds]

No impact at all........I have ARB's front and rear. Used them once this year from memory, normally get engaged a few times each year. Mine have been installed for approx. 300 000km