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changing transmission fluid

44K views 26 replies 12 participants last post by  freemansteve 
#1 ·
I've been watching video's about the transmission fluid but I don't see any transmission dipstick? So how do you add this fluid?

Draining seems easy? Just unscrew the bolt from the pan?
 
#2 ·
Not sure if the V6 is different but on my manual it's like the diffs: There is filler hole half way up the side, you fill from underneath and fill just until level, i.e. it starts coming out of the hole. So you'll need an oil syringe or an oil bottle with long spout etc.
 
#8 · (Edited)
Maybe not, but the truck has 140k on the clock, if regular maintenance wasn't done for at least 20k (who knows even more :?) then I suspect that the rear end & trans also havn't been taken care of.
What do you think, could I go for another year without changing (which would help my wallet :confetti) or should I do it now?
 
#9 ·
I've just been going through a full service on mine (engine, diffs, gearbox etc..) as I opened the rear diff to inspect the oil and it didnt look good in there. According to Nissan the gearbox is one of these sealed for life units and they do not recommend a service interval for the oil. However they did say if there was a fault they would then consider getting the oil changed. The oil is expensive, Nissan recommend only using their product and only sell it in 20 litre cans at a price of £330! If I remember correctly you need just over 10 litres to do a full flush and change. There may be another just as good oil that you can use but you never know exactly what Nissan put in the oil to know if it really is needed or if it is a con.

I do get a little slip on my gearbox, mainly when I am going up hill and go quickly to 3/4 throttle but not so much throttle that it kicks down. The worst I had was a jump in revs from 2,000 to 3,000 without a gear change and it felt like a clutch slippage for 2-3 seconds before sorting itself out. For this reason I am changing the oil next weekend.
 
#10 · (Edited)
#14 ·
The gearbox oil change was carried out on Friday. It had 1 litre of oil extra in there to what Nissan recommend and it was filled up with the exact amount they specify. It pains me to say it but I have seen no improvement. I initially thought it was smoother on the gear changes but now think that was me imagining it. I still get gear slippage and have opened another thread to discuss that.

Thread is here if you are interested - Gear slippage on auto box
 
#15 ·
sounds very much the same as Volvo say for their Geartronic box. It is sealed for life don't touch it, BUT in very small print in the back of the service book, if used as a taxi or to tow heavy loads, then the fluid should be changed and the gearbox recalibrated every 2 years (dealer and Volvo seem to disagree on a mileage limit for that).

Unfortunately when queried by me as to why the dealer had not pointed this out during the 36,000 and 54,000 mile services they said "its sealed for life doesn't need touching" when queried again they said "oh we didn't know you towed with it" (they fitted the removable tow bar)

It was finally therefore done at 62,000 miles and seems to have had no ill effect, price wasn't too bad c£250 all in but I was told the fluid was very black. I would therefore recommend anyone towing with an auto to still have the fluid changed or indeed as people on www.volvoforumsorg.uk will say, the Volvo gearboxes actually only make it to high miles if the fluid changes are done anyway regardless of towing etc. The Volvo box is manufactured by Aisin AW, I am not sure who makes the one used by Nissan.
 
#23 ·
I think i may have seen that chat.

Can only comment for mine and i can confirm it does have one. I was informed a while ago that you can which ones do and which dont without crscking them open by looking at the rear of the diff. Ones with a LSD have heat fins for dissapation on the rear of the diff.

Mine is a November 2010 v6.
 
#25 ·
The workshop book shows non-LSD, LSD, and electronically locking version but all appear to have a rear cover that has fins... And 2.5 and 3.0 engines all seem to have the same diff, barring gear ratios, unless there is some artistic license in the drawings.

Is there a visible part number on the diff?

Mine is a 2014 V6 with the fins but no LSD, as far as I can tell!

Anyway, standard diff oil is quoted as "API GL-5 synthetic oil SAE 75W-140 or equivalent", while LSD version says "Genuine Nissan Differential Oil Hypoid LSD GL-5 80W-90 or equivalent"....
 
#26 ·
Good Info Steve, as far as i can make out my V6 has no LSD either but have discovered that the ESP pulses the brakes on the spinning wheel, also i,m quite sure that that if the truck tries to step out sideways at the rear the ESP pulses the opposite side front wheel and keeps it in a straight line probably down to the yaw sensor, had a quick google here http://auto.howstuffworks.com/car-d...ory-devices/electronic-stability-control1.htm
 
#27 · (Edited)
Sorry to wander off topic...!

Yes mine has spun a wheel on occasion, triggering the ESP and corresponding dash light. It doesn't work that well, at least not the last time it happened.

All these electronic systems that apply brakes, in lieu of a proper automatic 4WD or at least a controlled slip system, seem to only work up to a certain (low) speed to save the brakes.
 
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