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Which diff oil for an Infiniti Q50 hybrid #4618896
12/30/17 02:44 PM
12/30/17 02:44 PM
Joined: Jan 2016
Posts: 9
Sydney, Australia
MVAust Offline OP
MVAust  Offline OP
Joined: Jan 2016
Posts: 9
Sydney, Australia
We just picked up a 3 year old Infiniti Q50 hybrid with 30k km on the clock. The hybrid is such an underrated car. Its possibly the fastest hybrid this side of a Tesla.

Since we picked this up secondhand we want to do a diff oil change even though its suppose to be maintenance free.

Amsoil website states it can use severe gear oil GL5 75W90 or 75W110.

Which one should we use?


Last edited by MVAust; 12/30/17 02:53 PM.
Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4618900
12/30/17 02:59 PM
12/30/17 02:59 PM
Joined: Aug 2009
Posts: 3,920
Pittsburgh,PA U.S.A.
JimPghPA Offline
JimPghPA  Offline
Joined: Aug 2009
Posts: 3,920
Pittsburgh,PA U.S.A.
Isent 30k km way too early to be thinking of changing the differential oil.

Something like 80 to 120 k miles is what I would run it to before changing.


Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa

Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4618906
12/30/17 03:20 PM
12/30/17 03:20 PM
Joined: Dec 2002
Posts: 42,293
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,293
New Jersey
Interesting car. 4.9s 0-60 is quick.

Does the manual give you any clues?

My suspicions are that a 75w-90 sun would be good, and you can't beat SVG.

Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4618910
12/30/17 03:24 PM
12/30/17 03:24 PM
Joined: Sep 2014
Posts: 2,176
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,176
US-WA
I would go with a 90, I doubt you'll be towing with that thing.


95 Cherokee 190K DELO 10W30, XG8
07 IS250 103K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 35k PP MIX, NG7047
Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4618925
12/30/17 03:41 PM
12/30/17 03:41 PM
Joined: Mar 2017
Posts: 6,490
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 6,490
...
Those Q50’s are sharp looking. I take it no owners manual in the car? Definitely make sure whatever goes in meets Infiniti specs.

This is the US owners manual for 2015. I just guessed the year. Australia may have their own site

https://owners.infinitiusa.com/content/m...wner-manual.pdf


Cannot see signatures any longer so it doesn’t matter.
Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4619023
12/30/17 05:09 PM
12/30/17 05:09 PM
Joined: Aug 2012
Posts: 3,041
Cincinnati
donnyj08 Offline
donnyj08  Offline
Joined: Aug 2012
Posts: 3,041
Cincinnati
I really like the Q50. Nice looking sedan. I would check nissans specs since the car is likely under warranty. I may even be inclined to buy the gear oil from the dealership.

Last edited by donnyj08; 12/30/17 05:10 PM.

2008 Silverado Z71 LT 90k Maxlife FS 5w30
2010 Ford Escape 172k QSUD 5w20
2016 Yamaha XSR900 12k, Rotella 15w40 Yamaha Filter.
Re: Which diff oil for an Infiniti Q50 hybrid [Re: JHZR2] #4619044
12/30/17 05:32 PM
12/30/17 05:32 PM
Joined: Jan 2016
Posts: 9
Sydney, Australia
MVAust Offline OP
MVAust  Offline OP
Joined: Jan 2016
Posts: 9
Sydney, Australia
Manual says the diff oil is in for life. The 75w-90 SVG is cheap and its easy to change. This gives me piece of mind knowing that the metal particles are removed early.

Yeah its a quick car for a hybrid and I'm getting on average about 6.5litres/100km (approx 36 MPG) in city driving.
Lots of torque at very low RPM (combine total torque something like 550Nm)

Last edited by MVAust; 12/30/17 05:33 PM.
Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4619046
12/30/17 05:39 PM
12/30/17 05:39 PM
Joined: Aug 2004
Posts: 20,199
CA
The Critic Offline
The Critic  Offline
Joined: Aug 2004
Posts: 20,199
CA
We fill the non-hybrid Q’s with Amsoil 75w90 synthetic.


2011 Toyota Prius - 178k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 133K - Mobil 1 EP HM 5W-30
Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4619355
12/31/17 02:34 AM
12/31/17 02:34 AM
Joined: Jan 2016
Posts: 9
Sydney, Australia
MVAust Offline OP
MVAust  Offline OP
Joined: Jan 2016
Posts: 9
Sydney, Australia
Just completed the diff oil change, used Amsoil 75w90 Severe gear oil. The original diff oil was of fine silvery metal particles which was expected. the magnet was also full of metal particles clinging to it.

Re: Which diff oil for an Infiniti Q50 hybrid [Re: MVAust] #4619444
12/31/17 07:39 AM
12/31/17 07:39 AM
Joined: Sep 2015
Posts: 2,472
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,472
Malaysia
Originally Posted By: MVAust
Just completed the diff oil change, used Amsoil 75w90 Severe gear oil. The original diff oil was of fine silvery metal particles which was expected. the magnet was also full of metal particles clinging to it.

These are indications of 'inadequate' operating viscosity .... and is best served by upping a viscosity grade or two, never mind OEM recommendation who supposedly knows best.

Re: Which diff oil for an Infiniti Q50 hybrid [Re: zeng] #4619972
12/31/17 05:38 PM
12/31/17 05:38 PM
Joined: Jan 2016
Posts: 9
Sydney, Australia
MVAust Offline OP
MVAust  Offline OP
Joined: Jan 2016
Posts: 9
Sydney, Australia
Originally Posted By: zeng
Originally Posted By: MVAust
Just completed the diff oil change, used Amsoil 75w90 Severe gear oil. The original diff oil was of fine silvery metal particles which was expected. the magnet was also full of metal particles clinging to it.

These are indications of 'inadequate' operating viscosity .... and is best served by upping a viscosity grade or two, never mind OEM recommendation who supposedly knows best.


As this is the first time the diff oil has been changed, I expected the wear in metals suspended in the diff oil.
Majority of the dealers and owners don't even change the diff oil for the life of the car.


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