Quote:
Originally Posted by humfrz
Thanks for the additional information...... 
It could be several things:
* you just started noticing it ...... 
* transmission gear whine
* differential gear whine
I would suggest that you check/change the transmission fluid. Check/change the differential fluid. Even if that doesn't "cure" it ....... at 45,000 miles, it sure wouldn't hurt.
humfrz |
I changed the transmission and diff fluid with Motul gear 300 at 30,000 miles.
If it's normal, then it's kinda a bummer considering those are freeway cruising speeds/rpms