StephanAZ
Posts: 4
Joined: Fri Nov 14, 2014 8:47 am
Delivery Date: 14 Nov 2014

Reduction Gear Oil

Fri Nov 14, 2014 8:53 am

My 2012 Leaf has about 35,000 miles on it. Twice when I have had it in for maintenance, at 15,000 and 30,000 miles, the dealer has told me the reduction gear oil was bad and needed to be replaced. I have searched for this online and have not found that anyone else has had this issue. Is this a known problem? Is it even remotely possible that they are telling me the truth? Or am I being fleeced?
Last edited by StephanAZ on Fri Nov 14, 2014 9:08 am, edited 1 time in total.

User avatar
mwalsh
Posts: 9478
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: Reduction Gear Oil

Fri Nov 14, 2014 8:59 am

If it doesn't call for it in the service schedule, it doesn't get done.

Unless there is visible evidence that there is a problem.

Here is what the dealer saw- $$$$$$$$. That is a good indication it is bad.

Hmm...I didn't type the bolded line.
Last edited by mwalsh on Fri Nov 14, 2014 9:05 am, edited 2 times in total.
2011 Blue Ocean SL with 71,000 miles.
2015 pack under warranty 12/30/15.
Tinted windows.
Michelin MXV4 tires.
L1 EVSE upgrade.
FIAMM horns.
Superbright LED lighting.
2013 sun visors.
LED shifter.
Heated seats.
GT-R map lamp lenses.
AV L2 EVSE.

StephanAZ
Posts: 4
Joined: Fri Nov 14, 2014 8:47 am
Delivery Date: 14 Nov 2014

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:02 am

The maintenance schedule indicates the reduction gear oil should be checked, which leaves it open for interpretation. The dealer has told me twice that it needed to be replaced, and I don't have the expertise to argue with them. I am looking for an answer that has more actual information, not just a gut feeling or reaction.

User avatar
mwalsh
Posts: 9478
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:03 am

What the hell! Somebody added a line to my post. Has my account been hacked, or was that an admin mistake?
2011 Blue Ocean SL with 71,000 miles.
2015 pack under warranty 12/30/15.
Tinted windows.
Michelin MXV4 tires.
L1 EVSE upgrade.
FIAMM horns.
Superbright LED lighting.
2013 sun visors.
LED shifter.
Heated seats.
GT-R map lamp lenses.
AV L2 EVSE.

StephanAZ
Posts: 4
Joined: Fri Nov 14, 2014 8:47 am
Delivery Date: 14 Nov 2014

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:08 am

Someone added a line to mine too. Maybe an admin is having a little too much fun.

User avatar
mwalsh
Posts: 9478
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:08 am

Is it excessively dirty? Does it smell burned? Are there bits of metal floating around in it? These are the only circumstances where I'd agree to have it changed without a bunch more convincing.
2011 Blue Ocean SL with 71,000 miles.
2015 pack under warranty 12/30/15.
Tinted windows.
Michelin MXV4 tires.
L1 EVSE upgrade.
FIAMM horns.
Superbright LED lighting.
2013 sun visors.
LED shifter.
Heated seats.
GT-R map lamp lenses.
AV L2 EVSE.

User avatar
TomT
Posts: 10570
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:11 am

Normally it is 120,000 miles before a change, if I remember correctly... I'd question WHY they think it should be changed prematurely...

StephanAZ wrote:My 2012 Leaf has about 35,000 miles on it. Twice when I have had it in for maintenance, at 15,000 and 30,000 miles, the dealer has told me the reduction gear oil was bad and needed to be replaced. I have searched for this online and have not found that anyone else has had this issue. Is this a known problem? Is it even remotely possible that they are telling me the truth? Or am I being fleeced?
Last edited by TomT on Fri Nov 14, 2014 10:20 am, edited 1 time in total.
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier. Model 3 configured.

garymelora
Posts: 57
Joined: Tue Jul 03, 2012 11:37 am
Delivery Date: 01 Apr 2012
Leaf Number: 018767
Location: King of Prussia, PA

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:21 am

The maintenance manual goes up to 120,000 miles, and only mentions checking, not replacing the gearbox oil.
as of 6/19/15:
2012 SL; 63K miles, Lost First Bar at 42K Miles, second at 53K Miles, $0 Maintenance/Repairs, New Wiper Blades and Tires at 35K Miles, 94 Mile RT Daily Commute w/Level 1 Charge at Work.

StephanAZ
Posts: 4
Joined: Fri Nov 14, 2014 8:47 am
Delivery Date: 14 Nov 2014

Re: Reduction Gear Oil

Fri Nov 14, 2014 9:55 am

mwalsh wrote:Is it excessively dirty? Does it smell burned? Are there bits of metal floating around in it? These are the only circumstances where I'd agree to have it changed without a bunch more convincing.


I can only go on what the dealer told me, but they said it was dirty. It doesn't sound to me like this is a common problem or that there is a reason it should be dirty. That's the information I am looking for.

Smidge204
Posts: 940
Joined: Wed Nov 24, 2010 1:42 pm

Re: Reduction Gear Oil

Fri Nov 14, 2014 10:25 am

The only way that oil can get dirty is if there's a lot of premature wear going on, which means failure is imminent.

If it happens again, ask them to bring you a sample of the oil. The reduction gear oil is literally automatic transmission fluid and should be a clear red color and fairly low viscosity. I'm assuming you can tell the difference between used ATF and used engine oil...

If they bring you a black smudge on a paper towel that smells of engine oil, tell them where they can stick it!
=Smidge=

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