Transmission and diff oil change
#31
Mobile 1 or Royal Purple
The stores around here are limited in their selection gear oils. Which do you think is better for the differentials? Mobil 1 or royal purple max gear? Thanks.
#32
D4 and D6 would work just fine in our transmissions .. I use D4 myself for almost a year now with no issues whatsoever.. As for the diff oil , nothing can beat Motul fluids, believe me
#33
Registered User
I'm curious about this thread.
My 2009 G37 7AT has 64K miles and the dealer is recommending the differential oil be changed. This diff oil was changed at 30K because the dealer told me that Nissan had switched oil types about the time the car was made, and he recommended I change it to make sure I had the newer oil in it. I figured why not, it was free, and they did it.
Changing the diff oil is not included in either the Schedule 1 or Schedule 2 maintenance tables. Flushing the ATF is not listed, either. However, both (the diff oil and flushing the ATF) are listed on the "Premium Maintenance" table.
So they're basically saying you don't have to do either, but doing both is good for the car.
My personal feeling is that yes, fluids do get old and their protection and functional properties can break down over time, especially in severe-use environments. Still, I can't see myself getting this done if it's not listed as "required" in the Schedule 1 or 2 tables.
Is Nissan rolling the dice here, or is failure eventual - as in planned obsolescence? Are there any certified Nissan techs reading this can weigh in?
My 2009 G37 7AT has 64K miles and the dealer is recommending the differential oil be changed. This diff oil was changed at 30K because the dealer told me that Nissan had switched oil types about the time the car was made, and he recommended I change it to make sure I had the newer oil in it. I figured why not, it was free, and they did it.
Changing the diff oil is not included in either the Schedule 1 or Schedule 2 maintenance tables. Flushing the ATF is not listed, either. However, both (the diff oil and flushing the ATF) are listed on the "Premium Maintenance" table.
So they're basically saying you don't have to do either, but doing both is good for the car.
My personal feeling is that yes, fluids do get old and their protection and functional properties can break down over time, especially in severe-use environments. Still, I can't see myself getting this done if it's not listed as "required" in the Schedule 1 or 2 tables.
Is Nissan rolling the dice here, or is failure eventual - as in planned obsolescence? Are there any certified Nissan techs reading this can weigh in?
Last edited by TinsleyC; 01-29-2017 at 04:27 PM. Reason: added last question
#34
Just changed the rear differential oil on my 2010 G37x. It has 85,000km. I doubt if the previous owner ever did it. I noticed an immediate difference. The infamous low speed transmission jerkiness lessened significantly. The car seems to "sail" more. Hoping to do the front differential/transfer case next. Will probably change the transmission oil at 95,000km.
#35
Registered Member
I got mine trans fluid done from Infiniti for 210, might have been a little less. They first put in BG oil, when I found out, I had them replace with Nissan S at their cost. I need to have the diff done. I am getting it done when they take the diff out for new bushings. Nissan uses Mobil One. Motul is better.
#36
Registered Member
I got mine trans fluid done from Infiniti for 210, might have been a little less. They first put in BG oil, when I found out, I had them replace with Nissan S at their cost. I need to have the diff done. I am getting it done when they take the diff out for new bushings. Nissan uses Mobil One. Motul is better.
#37
I changed my rear diff with Mobil 1 75W-90, and it seems to be really good. It took about 1.4 quarts for the rear diff. I haven't done the tranny yet, but if I do; I will do with OEM stuff for the tranny
#38
Registered Member
#39
Registered Member
The dealership/ BG would have claimed responsibility if it caused damaged. I work for Toyota and we also use BG for transmission services.
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G37SBS (03-24-2022)
#42
Registered Member
I think I only had 168k at the time, but you never know. I heard on here that you should replace it every 30k and my car hadn't its fluid changed since 120k.
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