Gear Oil

[cmartyn]

So, I was looking at the old manual and under capacities and lubricants we have a suggestion for rear dif and transfer case lubricants which are different. Full Synthetic up front, Dino Oil in back? Seems weird most.people seem to just buy Mobil 1 or Kirkland depending on their persuasion. I've never seen anyone use two different oils. They are both close to the same price.

Differential
Genuine NISSAN HYPOID FLUID·S1 GL-5 75W-80 or equivalent
999MP DF300P

Transfer fluid
Genuine NISSAN Differential Oil Hypoid Super-S GL-5 synthetic 75W-90 or equivalent.
999MP DF700P

[VStar650CL]

I assume you mean tran-sfer and not tran-smission. If you don't put in a hyphen, the editor here turns tran-anything into transmission.

GL5 oils get almost all of their pressure strength from additives, and in my experience it doesn't make a whole lot of difference whether the base oil is refined or synthetic. Maybe in a race car, that's different. In this case, the real difference is the viscosity index. The tran-sfer cases take a tiny amount of oil, 5/8 pint, and maybe that explains the higher vis. BTW, the diff couplers on gen3's also have their own oil, basically fancy LSD oil. The spec is for Nissan LSC Coupling Transmission Fluid 12-301 or equivalent.

[cmartyn]

Thanks, Yes, I meant "tran-s-fer" case. I couldnt find any sort of maintenance schedule for changing the coupling oil. Only to inspect it every year or 12,000 miles. Not even sure how to change it lol.

Ok, well, I can't justify spending 60.00 a quart on Nissan fluid. My dealer here has to order it. Everybody seems to like the Motul brand over at Bob's the oil guy.

[VStar650CL]

Yep, I agree the Nissan fluids are very overpriced. I've been b!tc#ing about NS2/NS3 that way for years. There's no harm in using Mobil or any other good GL5 in the diff and tran-sfer. I don't know if you'll find any equivalent for the coupler fluid, I couldn't find anything last time I looked. FYI, it takes 1-1/4 pints and there's a fill/level plug on it similar to the diff. I definitely recommend checking it once in awhile, since the coupler is basically the weakest link in the whole rear drive. There's no drain plug, so when you want to change it, I recommend using a sucker. If you remove the reservoir plate then the coupler needs to be bled and you need a Consult for that. Doing a partial spill-and-fill with a sucker like doing a CVT spill (replace whatever you take out) is a better idea. Make sure you shake the bottle of coupler fluid before use -- just like some electronic LSD oils, it has metallic elements which can settle out in storage.

[V6er]

Only thing I wonder - is that 3rd gen awd engagement unit really nissan or haldex?

[VStar650CL]

I'm sure it isn't Nissan. Hitachi makes a lot of the diffs, I'd say they're a good bet for the couplers too.

[V6er]

hmm... hitachi... will check what I can find

[cmartyn]

Well.. I decided to do a 75w90 up front and a 75w85 in back. I got my wrenches and pumps.. does anyone know the part number for the alluminum sealing / gasket washers? Just a quick look.. they look to be M14 bolts but these washers are super thick. It's a 21 Rogue and none of the part sites list them.. only earlier ones. I saw some black anodized ones for the GTR.. fancy pants. 20 bucks lol.

[V6er]

Well.. I decided to do a 75w90 up front and a 75w85 in back. I got my wrenches and pumps.. does anyone know the part number for the alluminum sealing / gasket washers? Just a quick look.. they look to be M14 bolts but these washers are super thick. It's a 21 Rogue and none of the part sites list them.. only earlier ones. I saw some black anodized ones for the GTR.. fancy pants. 20 bucks lol.

did you look at parts catalog, did you go to dealership parts department?

[cmartyn]

I looked at the parts catalog. It doesn't even show them. Well, I couldnt see them. They dont even show the drain plugs. I didn't go to the parts counter yet. That's my last resort as it's a 30 mile round trip.

[V6er]

I looked at the parts catalog. It doesn't even show them. Well, I couldnt see them. They dont even show the drain plugs. I didn't go to the parts counter yet. That's my last resort as it's a 30 mile round trip.

All those washers sometimes are hard to find, but they are there. Later today I can look what I have gathered - I think I got all the partnumbers.

[cmartyn]

That would be great. I mean, the drain plugs and washers for the trans and engine pan are easy to find.just can't find these.

The online parts sites seem incomplete. A lot of them have the transaxle link pointing to the interior console so if you need a sealing washer, your out of luck but could we interest you in a new arm rest?

[V6er]

treat it with grain of salt - I am not sure how far did I get with fact checking (I remember going to dealership to check part numbers, but I am not sure - is this list BEFORE or AFTER that visit and now looking at parts.nissanusa.com catalogs - looks like they have "cleaned out" a lot of information.
anyway
11026-1CA0A - this seems to be transfer drain and fill plug gasket. used to be less than 4usd. I think these were aluminium.
11026-4N200 - this seems to be rear diff drain and fill plug gasket. these also might be aluminium.
11026-JA00A - cvt drain plug washer
31397-X230A - cvt oil pan gasket

[cmartyn]

Thanks, Those part numbers are the common ones for the Rogue. One of them looks to have a thinner shoulder, probably for under the flange cap screws and the other one is wider probably for the regular cap screw. Whatever. if they don't fit.Ill just reuse the old ones like everybody else. I'm sure they will fit. I will.take some.pics.

[V6er]

take pics and measure good luck!

[cmartyn]

Thanks. I managed to find a more complete parts manual by searching lookup codes and Nissan Rogue eventually landing on a bunch of Spanish parts books. They confirm what you said as far as washers go. I got the drain and fill plug numbers too. This is for 2021 SV AWD..

TRANSFER CASE
11026-1CA0A WASHER (2)
32103-MA00B Drain / Fill PLUG (2) No Magnets

Rear DIFF
11026-4N200 WASHER (2)
32103-4N20C PLUG Drain Plug with magnet
32103-4N21D Fill PLUG

[cmartyn]

Well, the difference is the thickness of the washers. The diff washers (4N200) are 1.5mm thick and the 1CA0A for the front are 2.0mm thick. Remains to be seen what exactly comes off the car. They are both just 24×18mm aluminum sealing washers.

[cmartyn]

Well, we get around to everything eventually. And, big SURPRISE!!! They moved the drain and fill.plugs to the passenger side of the diff. Threw me for a loop. Anyhow, the 1.5mm washers are indeed used on both the drain and fill plugs. My 2021 is a Japan built.with 8500 miles on it. Built 4 years ago so I'm 2 years overdue by the book but the fluid looks pristine and there was very little build up on the drain plug magnet.

[cmartyn]

Just to close this out, did the transfer case today. Observations, the washers are for sure thicker on the transfer case than the differential.

The fill.plug on the transfer case has a 14mm hex head and not the 10mm allen key.

Nissan rerouted the exhaust so the whole thing is much easier than it used to be. If you insist on tightening the fill plug to the correct torque you will need a 3/8 digital torque wrench and a low profile socket. There was no room for my craftsman and I used a long extension to come at it from behind the wheel. I dont have a part number for that 14mm bolt and the Nissan parts catalog doesn't show it.

[Boulder.rogue]

@VStar650CL
@everyone

I need help please as I want to do drain and fill my transfer case on my Nissan rogue 2021 but could not see any info where is the fill plug.

I have attached a photo and marked the plugs.

Do I get it right?

Please help.

Thank you

[VStar650CL]

The blue one is the check/fill plug. The red ones are both drains but you only use the one facing downward.

[Boulder.rogue]

The blue one is the check/fill plug. The red ones are both drains but you only use the one facing downward.

Thank you sir. We are lucky (diy'er) to have you on this forum.

[VStar650CL]

[V6er]

Thank you sir. We are lucky (diy'er) to have you on this forum.

absolutely!

[italian926]

man oh man, I have a 21 Rogue AWD 2.5 and I THOUGHT I was all set with just doing my transfer case and rear diff, until I came across this post. Thank you VStar650CL for mentioning the coupler fluid, I had no idea. Not a single youtube video on this fluid type change Wow. I did find a video on an actual replacement of the whole coupling for a 2023, and it skips over the fluid refill process. I found a TSB involving the coupler, here is a screenshot of the refill section. So my question is, do we drain and then fill to point of overflow? You mentioned replacing what you take out, and that is confusing me . Link to whole tsb https://www.tsbsearch.com/Nissan/NTB20- ... e_vignette (page 40)

Was there no "coupler" previous to 2021 Rogues ?

[VStar650CL]

There was a coupler on the gen1/2's but it was a sealed unit. You can only check/change it on gen3's.

Fill to the check plug, but you might want to compare what went in with what came out to make sure it's right. If not, recheck it after driving a bit. Trapped air can be an invisible bitc#.

[italian926]

Thanks again, I have a stupid question. The TSB above mentions not using a fluid pump that hasnt been used on other fluids. Is that overkill? If its important, how do we clean out these tubes from previous oil ? should we have like dedicated pumps for various viscosities ?

[VStar650CL]

For extraction you can just use a clean pump, but to refill I'd use a dedicated setup. They tell me the coupler fluid is a little like CVT fluid in one way, even a few drops of pollution with the wrong chemicals can ruin it. Don't take chances, those couplers a very expensive.

[italian926]

Hi there, Im doing my fluids today, just wanted to share that I found fluid for the coupler , and has got that 12-301 stamped on it , whatever that means. https://www.fcpeuro.com/products/audi-h ... -g060175a2 Bought all my fluids from one place and just added it for simplicity even though the price was comparable to OEM . It is THE only fluid I could find with that specification, so maybe this company produces the OEM fluid.

I also ordered 75W-90 Royal Purple MaxGear synthetic for the transfer case rated Gl-4 or GL-5 , and 75W-80 (GL-5) Febi Bilstein for the rear.

[SMMac]

So, after trying to delineate from the posts of some very knowledgeable folks in this thread, am I safe to conclude that Mobil 1 full synthetic 75w-90 GL-5 gear oil is safe to use in the front and rear differential as well as the transfer case of my 2021 Rogue SL AWD?