knightmb
Well-known member
Maybe not so much a problem / troubleshooting issue since it takes very specific steps to reproduce it, but I am open to feedback to the more mechanical sage wisdom here.
For a background history, I owned a 2013 SV Leaf for nearly 8 faithful years and finally traded it in a few months ago for a gently used 2020 SL Plus. The Plus part adds the bigger battery pack and higher power motor (maybe the same motor at more power, don't know?) But... when I first got the vehicle, I had a few opportunities to just full power from 0 to 100 MPH (for science!) and the first thing I always noticed was the smell of burning ATF fluid during the top end of the acceleration. I didn't really think much of it because I can do the same thing in many ICE vehicles with an automatic and have in the past. It just chalk it up to abusing the vehicle. Not something one should be doing everyday as it just wears on the transmission unnecessarily.
Oddly enough, I never could achieve this in my 2013, I guess 80 kW just isn't enough to really stress out the reduction gear in the Gen 1 Leaf. Seems Nissan remedied that problem with the Gen 2 :lol:
So.... the point I'm trying to get to. I've been able to reproduce this a few times now (just the luck of traffic that day and no clear law enforcement presence). I did finally just drive back home and check around motor, gear house, tubes, pipes, etc. Basically looking to see if anything was actually leaking anywhere to make the smell. So far I couldn't find anything, no evidence that anything is coming out from either the gear house bolts for changing fluid or anywhere else. I'm in the middle of a gear oil experiment using thinner oil, but I was able to reproduce this before the gear oil change. Today, I still can reproduce the smell, just takes longer before you start to notice the smell (60 mph before gear oil change vs. 80 mph after the gear oil change).
Anyway... back to the point. Is there a type of "pressure" relief on the Gen 2 Nissan Leaf reduction gear house that would let out burning gear oil? That is the question I was trying to get to. :?
Also... has anyone else tried this (on purpose) and noticed any burning oil smell? :shock:
For a background history, I owned a 2013 SV Leaf for nearly 8 faithful years and finally traded it in a few months ago for a gently used 2020 SL Plus. The Plus part adds the bigger battery pack and higher power motor (maybe the same motor at more power, don't know?) But... when I first got the vehicle, I had a few opportunities to just full power from 0 to 100 MPH (for science!) and the first thing I always noticed was the smell of burning ATF fluid during the top end of the acceleration. I didn't really think much of it because I can do the same thing in many ICE vehicles with an automatic and have in the past. It just chalk it up to abusing the vehicle. Not something one should be doing everyday as it just wears on the transmission unnecessarily.
Oddly enough, I never could achieve this in my 2013, I guess 80 kW just isn't enough to really stress out the reduction gear in the Gen 1 Leaf. Seems Nissan remedied that problem with the Gen 2 :lol:
So.... the point I'm trying to get to. I've been able to reproduce this a few times now (just the luck of traffic that day and no clear law enforcement presence). I did finally just drive back home and check around motor, gear house, tubes, pipes, etc. Basically looking to see if anything was actually leaking anywhere to make the smell. So far I couldn't find anything, no evidence that anything is coming out from either the gear house bolts for changing fluid or anywhere else. I'm in the middle of a gear oil experiment using thinner oil, but I was able to reproduce this before the gear oil change. Today, I still can reproduce the smell, just takes longer before you start to notice the smell (60 mph before gear oil change vs. 80 mph after the gear oil change).
Anyway... back to the point. Is there a type of "pressure" relief on the Gen 2 Nissan Leaf reduction gear house that would let out burning gear oil? That is the question I was trying to get to. :?
Also... has anyone else tried this (on purpose) and noticed any burning oil smell? :shock: