Diff & transfer box oils

[bazzaboy]

Guys,

Is Penrite Gear Oil - 80W-90 a good choice for the diffs in my 2014 Y61, and Penrite Pro Gear Oil - 75W-90 for the transfer box ?

[Hodge]

Sounds ok.
Just make sure the rear diff oil is limslip variety.

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[bazzaboy]

Good to know. Just checked, and Penrite 80w-90 Diff oil does have Limslip added. Thanks Hodge.

[Big Gags]

On a somewhat related note - when I change diff oil should I be using some sort of sealant on the sump and fill plugs when I screw them back in? Changed both diff oils a few months ago and didn't use any sort of sealant and I have noticed that they have been weeping a bit of oil. If I should have used a sealant I would also appreciate some advice on what to use?? Thanks, Gags.

[Clunk]

On a somewhat related note - when I change diff oil should I be using some sort of sealant on the sump and fill plugs when I screw them back in? Changed both diff oils a few months ago and didn't use any sort of sealant and I have noticed that they have been weeping a bit of oil. If I should have used a sealant I would also appreciate some advice on what to use?? Thanks, Gags.

I've never used any sealant on sump and diff plugs.... Shouldn't need to

[Hodge]

I've never used any sealant on sump and diff plugs.... Shouldn't need to

This. ^

The plugs are tapered to an extent, so no need for sealing.

[Hodge]

I use this.

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[nipagu7]

just to add to big gags post . my car is almost due for its first gearbox and diff oil change so i've had a bit of a look around them and all of the filler and drain plugs have some sort of sealant around the plugs . in almost every other car i've had i've always had slight weeping from the plugs , very minimal , and only just noticeable, but there all the same. to make a tapered thread seal they have to be very tight and i have come across plugs ( hex heads ,allen key and slotted for flat head screwdrivers ) that have bee stripped because they were done up so tight to make them seal . they can be a real pain to remove . i have seen other alternatives to seal them as well . there is/was one system where you screw a plug in and then screw a cap in to the plug which seals with o' ring/s against the g/box housing to contain any weeping . years ago most 4x4,s would be parked outside on a patch of dirt and the odd drop of oil and grease here and there was part of the deal of owning a 4x4 . but these days a lot of people want to keep their car in the garage and not have it drop oil and grease on the floor , not to mention the issues this might cause with the authorities . i park my car in the garage , so would like what this sealant compound is that nissan has used .

[nipagu7]

pspeirs . a 2012 model may have a factory locker in it , it will be easy to work out which diff you have once you have the car , if it has a lock diff it will have a button on the console / dash to engage/ disengage the diff , and as far as oil is concerned is considered an open diff . you can get normal or heavy diff oil for LSD or open diff's at most places that sell car oils . the heavy oils( 90w- 140 ) is more for heavy towing or perhaps if you live in darwin or regularly push the car hard .

[pspeirs]

Yes, it does have a locker in the back, its this that made me confused as to whether it was a GU7 or 8. My days of pushing too hard are probably done, unless of course I leave the wife at home (and thats a very real option). The other thing I'm trying to consider is that the histort of the vehicle is unknown apart from the regular servicing.