GaleHawkins wrote: ↑
Mon Jun 07, 2021 12:26 am
Valdemar wrote: ↑
Sun Jun 06, 2021 4:25 pm
Closing in on 180k miles with the original oil, no major changes in the gear noise levels.
That's an amazing report. Mechanically speaking I don't think it has to be changed.
Just a note, in case it was missed, is that Valdemar reported a gearbox (or motor area?) noise 2 years & 15k miles ago.
And now we know the noise is still there. .... https://www.mynissanleaf.com/viewtopic. ... 60#p562946
(Might be the CV joints half-shafts mistaken for gears or the motor bearings. Those joints can go out any time, but the dealership probably hand-shook the CV joints to see if they seemed loose.)
On the gears & differential box, looks like Nissan engineers, probably targeting ~150k miles life (middle of a bell curve) by design, got it basically right, as this thing can last anywhere from 120k miles to 250k miles on the original factory ATF fluid. Limited evidence though.
If you're not keeping a Leaf past about 100k miles, then don't change the fluid, unless you really want to. I found it easy to DIY, & I got an all-PAO stable "forever fluid" using Amsoil SS ATF in there. .. Truth is, Any cheaper ATF fluid will work OK, since they all do well with just gears & bearings like ours has.