What is the NV245 fluid capacity, really? - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 13 (permalink) Old 12-16-2017, 09:35 PM Thread Starter
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Question about front differential capacity on refill

I'm doing a complete drain and refill of the driveline fluids on my 2008 Commander. It's parked level in my garage and I opened the drain plug several hours to let it drain. Anyway, I filled it and it only took about 1.25 quarts before it started coming out the fill hole. I moved the bottle pump tube to make sure it wasn't a false reading but even after more pumping it just gushed out faster. Most references say that a drain and fill should be able about 1.5 quarts. I'm not sure if that's typical or not, but I'm not sure what to do. I've never had a differential fill so far from what I expected.
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post #2 of 13 (permalink) Old 12-17-2017, 12:02 AM
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maybe it takes 1.5qt when you fill after removing the cover. i just changed mine. i used a gallon jug of fluid so i did get an exact capacity.
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post #3 of 13 (permalink) Old 12-17-2017, 12:27 PM
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Pulling the drain plug won't get all the fluid out, so it's pretty reasonable that 1/4 quart would be left in the diff.

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post #4 of 13 (permalink) Old 12-17-2017, 12:55 PM Thread Starter
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Quote:
Originally Posted by consumedbywater View Post
Pulling the drain plug won't get all the fluid out, so it's pretty reasonable that 1/4 quart would be left in the diff.
Thanks for the input, I appreciate it. I assumed the total amount of from the drain plug would be 1.5 quarts. My garage has a floor drain and the Jeep might not be pulled in quite far enough, so I might check again after I pull it in further. That might also explain why the NV245 didn't weep out the fill hole after putting all 2 quarts of the Mopar fluid in. Strangely, I pulled out almost 2.5 quarts, which is far above specified capacity.
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post #5 of 13 (permalink) Old 12-19-2017, 10:35 AM Thread Starter
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What is the NV245 fluid capacity, really?

Admittedly, I did touch on this in an earlier thread, but I feel like I haven't really gotten a concrete answer, so here goes.

I was baselining the drivetrain fluids on my XK and noticed something strange. My drain pan has a fluid measurement on the side and I counted roughly 2.5 qts of fluid drained from my NV245 transfer case. OEM fill spec is 1.9 quarts and I managed to get both quart bottles of that Mopar liquid gold in without any seeping out (admittedly it is ever so slightly nose-down on my garage floor).

After searching for corroboration, it seems this happens to a lot of people. Some put in 2 quarts and it seeps out the fill hole, whereas others have to put in over 2 quarts of fluid to achieve seepage. I'm debating calling it good with putting in the amount the factory called for, but I'm curious what the rest of you think. Part of my moral dilemma is that I paid about $10/qt on Amazon and if I want to buy a third, I have to cough up $21. :/
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post #6 of 13 (permalink) Old 12-19-2017, 09:52 PM
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i just drained and filled mine. used a 2pt pitcher as a catch pan and the old fluid filled it up but did not overflow. i'd say 1.9qts worth

i used lucas hydraulic fluid to refill: https://lucasoil.com/products/hydrau...ydraulic-fluid
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post #7 of 13 (permalink) Old 12-20-2017, 12:23 PM Thread Starter
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Quote:
Originally Posted by drm4633 View Post
i just drained and filled mine. used a 2pt pitcher as a catch pan and the old fluid filled it up but did not overflow. i'd say 1.9qts worth

i used lucas hydraulic fluid to refill: https://lucasoil.com/products/hydrau...ydraulic-fluid
Hahah, it's absolutely bizarre to me how there's so much variation in what people are draining and filling these units with. I caved and went to the dealer and plopped down $15 for another quart (apparently it wasn't $21 after all). I'll make sure the Jeep is level and even if it was a few ounces shy, I'm going to fill until I get the seeping, if only for peace of mind. Doesn't pay to save $15 when you're talking about a $1,000 transfer case!
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post #8 of 13 (permalink) Old 12-21-2017, 11:47 PM
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Quote:
Originally Posted by mphilleo View Post
Hahah, it's absolutely bizarre to me how there's so much variation in what people are draining and filling these units with. I caved and went to the dealer and plopped down $15 for another quart (apparently it wasn't $21 after all). I'll make sure the Jeep is level and even if it was a few ounces shy, I'm going to fill until I get the seeping, if only for peace of mind. Doesn't pay to save $15 when you're talking about a $1,000 transfer case!
I have news for you - a new transfer case is more than $1000.00

Just doing a quick search - a rebuilt one is almost $1,600.00

https://www.ebay.com/i/142624190125?chn=ps

That's why I take mine to Chrysler/Jeep and let them do it.


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Last edited by Big Blue; 12-21-2017 at 11:49 PM.
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post #9 of 13 (permalink) Old 12-22-2017, 02:23 PM
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Well a couple days ago I smelled, ever so slightly but still there, a rubberish burning smell coming from underneath the "3 Tons o' Fury." I had just changed my T-case fluids about 1000 miles or so ago. This is what just came out(in the white bowl.) Now I'm no expert, but this doesn't look good to me. But again, not really to sure. So I drained and filled with the NV 245 t-case fluid. Hopefully this will solve my issue, even though it was only for a couple drives then it just stopped smelling. It's been about 4 days with no smell but still. Anybody had any ideas or input? Btw, the capacity is 1.9qts...I just put 2 in with the idea that some would not make it in through the pump and tiny residual in the jugs.

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post #10 of 13 (permalink) Old 12-22-2017, 06:11 PM
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Quote:
Originally Posted by DKloud216 View Post
Well a couple days ago I smelled, ever so slightly but still there, a rubberish burning smell coming from underneath the "3 Tons o' Fury." I had just changed my T-case fluids about 1000 miles or so ago. This is what just came out(in the white bowl.) Now I'm no expert, but this doesn't look good to me. But again, not really to sure. So I drained and filled with the NV 245 t-case fluid. Hopefully this will solve my issue, even though it was only for a couple drives then it just stopped smelling. It's been about 4 days with no smell but still. Anybody had any ideas or input? Btw, the capacity is 1.9qts...I just put 2 in with the idea that some would not make it in through the pump and tiny residual in the jugs.

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