gear whine in warmer weather

[rotorblades]

hello folks i have a 2014 x2with 1025mileswell taken care of.and im a skinny guy 150 lbs this last summer=warmer weather i noticed more planetary gear whine than previous cooler monthsand now cooler weather again it did seem to run quieterthen today one warmer 50-60 degree day it seems to whine a little moreis there any issues with segs being made with poor lubrication or grease/gear oil viscosityissues known? i dont believe this is coupler noise
just an almost pleasant whine.imshooting for a second thousand miles this year. i do go off a curb now and then to let people go by.my tires have real low pressureand no wheel wobble=im old and quite disabled or i would have had this figured outi have a mechanical backgroundis there any known issues with grease breaking down?if some maintenance could save me some future damage i could hire some help to refresh the oil