I've seen a couple of different editorials on this, and it seems that people settle for an 80w-90 gear oil, API GL5. The dude at the parts department was no help, obviously. He just said they have a drum of it and don't sell it.

If I search for Hypoid Gear Oil, I get a few interesting things, like this stuff:


What all have you used?

 

Gear Oil; SAE 90 GL5. I used Mobil 1 Synthetic 75w-90 available at any auto part. Uses less than one quart. Use new seal washers. Must jack up car.

 

08200-9014A (Acura):
08200-9014A - HGO-1 GL-5 75W-85 - Bernardi Acura Parts & Accessories
08200-9014 (Honda):
08200-9014 | Honda HGO-1 Hypoid Gear Oil - Bernardi Parts

Acura Genuine Oils and Fluids Applications
Honda Genuine Oils and Fluids Applications
https://acurazine.com/forums/problem.../#post15191527

 

That is an awesome chart in the oil consumption thread! I couldn't find reference to that fluid anywhere. A search for transfer fluid always brought to the mdx forums and they were using the auto parts store OTS stuff, which never satisfies me in specialty applications like this one.

 

My idiot service advisor couldn't tell me what fluid goes in the transfer case....

 

Well now you know! I've been having trouble finding out some basic information about our cars so I've been making threads to capture the information.

 

Redline makes a synthetic gear oil that matches the Acura specified viscosity: 75w-85
Website: Red Line Synthetic Oil - Gear Oil for Differentials - 75W85 GL-5 Gear Oil

I think I shall use this next time instead of the Mobile 1 which is 75w-90.

 

Service writers don't know what fluids to use, they're not the ones who use it. Parts people are normally who you would ask, but like OP said, parts people are typically useless

 

The last time I bought a part from the dealer I though the counter person was gonna say "You want fries with that"?

 

Was it difficult to change the it? Judging from using only less than a quart, it doesn't sound like it will be difficult.
Do we have any DIY for it??

 

There are 2 plugs on the t-case, one on bottom, one mid way up the front. remove lower plug and drain, reinstall plug. remove upper plug and fill with fluid until runs out of hole. reinstall plug. done.

 

quick question guys, going to be tackling this pretty soon

when replacing the diff fluid, i always replace the washers with new ones. anyone have the part numbers for the washers of the transfer case???

for the rear diff i believe they are ... 90471px4000, 9410920000, same two for the front??

thanks guys!

 

on the transfer case, you have 2 of the 94109-2000 - 20mm washers.

 

great thanks hornedfrog