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Transfer case fluid

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6.6K views 19 replies 4 participants last post by  jasonpp  
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#1 ·
Hello there. I have 11K now on my Passport and love the car. Drives excellent with no issues whatsoever.

Question;
I see these videos on youtube and other sites where they recommend to change the Transfer Case Fluid at 15K intervals. I also saw a video for a RIdegline that the first differential oil should be changed at 7K miles? Really? That soon? and 15K after that.

I got all the oils, crush washers and tools needed for this job but wanted to hear from others on this matter.

I do not follow the rule of the oil life on the settings of the car. I do change the engine oil and its filter at 50% of its life. The oil is quite dark and I'm not sure how it can resist another 50%. When it reaches 5%, then I go to dealer to get the free oil change (while this deal lasts) and reset the stupid "Oil Life" Yes, the car has 11K and has had 3 engine oil changes so far. I use Castrol 0w-20 and original Honda OEM oil filters. Anyway, let's get back to original question.

When is the right mileage for Transfer Case fluid change? The car does not tow or driven under hard driving conditions. If the Transfer Case Fluid need to change at 15K does the differential fluid need to be changed too?

Thanks,
 
Discussion starter · #3 ·
jasonpp said:
Follow what the reminder tells you.
Mine reminded me to change the rear diff around 15k give or take and then every 30k after that.
The transfer case is usually done with the transmission fluid around 60k give or take.
The darkness of the oil has nothing to do with the condition of the oil. The only way to determine is to do an UOA.
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Thanks for replying, I see a B16 on the reminder on display. Does that mean they will do Engine oil+ oil filter + Tire rotation + Differential fluid? Looking at the manual that is what B16 stands for. It does not mention anything for Tranfer case fluid.
 
Discussion starter · #5 ·
jasonpp said:
As I said, transfer is done with the transmission fluid per code 4.
View attachment 19707
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Yes, my manual has this table;
Image


I guess my question is then when is the B3 code expected to show on Minder, at what mileage? Clearly it is not at 15K. I'm just trying to find out if these statements saying that the Transfer case should be replaced at 15K are right or wrong.

Thanks,
 
Discussion starter · #8 ·
Yes, I understand that. That's why I said by the time I treat code B16 I will be over 15K and code3 is not shown yet. Ok, not sure then why these videos on youtube ask for 15K on Trans case fluid. I'll see and I may do it with my next Engine Oil change just to be safe.
 
Discussion starter · #10 ·
In my case getting the B16 done should be free of charge, including the diff oil and labor. When I bought it in April 2023, they said the car maintenance is covered for first 2 years from the dealer. I guess that's how they trick you into buying the car for for money initially.
 
Discussion starter · #13 ·
jasonpp said:
I mean it's not that much of a work to do it but if you are under a maintenance program then sure. Make sure they use the correct fluid tho. Some dealers would try to substitute OEM fluids with something else and it can cause issues.
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Wow, really? I thought at the dealer they only use OEM fluids. The reason I decided to use Castrol 0W-20 is because a 1Qt of Honda brand Engine oil was $11.50 at my dealership and I needed 6 of them.
Image


Are you saying that when you do oil change at the dealer they don't use this oil?
 
Discussion starter · #18 ·
jasonpp said:
I mean it's not that much of a work to do it but if you are under a maintenance program then sure. Make sure they use the correct fluid tho. Some dealers would try to substitute OEM fluids with something else and it can cause issues.
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How can one make sure they(dealership) uses the correct oil? You tell them to use "Dual Pump Fluid II" for the diff? Of course they will say we use OEM oil. This is more a matter of trust. Are you saying they ask you if it is ok to use a different oil? Don't think so, but then, I don't know for sure.
 
Discussion starter · #19 ·
BlackCarsOnly said:
I hate to be that guy; but it's a very easy DIY. Waaay easier than a LOF imo.

Check this vid on YT.
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I agree with you 100% and I always do things DIY, that's why I got everything ready everthing, even the crush washers are OEM honda, but I thought to do so after my maintenance free program ends. Now it looks like I won't even enjoy those FREE changes, bummer.
 
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