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Old 09-03-2015, 04:01 AM   #1
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Default 2015 Honda Piolt question

The truck has 9000 miles on it and the dealer is telling me that the rear differential fluid needs to be changed? Is this essential? Thanks.
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Old 09-03-2015, 04:04 AM   #2
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Seems early, I had to change the rear diff fluid on my '14 MDX at 12k, similar drivetrain.
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Old 09-03-2015, 04:08 AM   #3
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What does the manual say?
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Old 09-03-2015, 04:11 AM   #4
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Manual says 6000 miles? if I remember correctly...
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Old 09-03-2015, 04:17 AM   #5
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I would think you need to change it to maintain warranty, no?
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Old 09-03-2015, 04:18 AM   #6
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Originally Posted by Brezinup View Post
I would think you need to change it to maintain warranty, no?
I hate this, nothing but money wasted? I usually dump the vechiles at around the ten year mark, not sure if the diff will make it that long?
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Old 09-03-2015, 05:50 AM   #7
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I hate this, nothing but money wasted? I usually dump the vechiles at around the ten year mark, not sure if the diff will make it that long?
First 4wd/awd vehicle?
They require a lot of regular maintenance - F & R differential fluids every year or 15k miles, transfer case fluids every 2 yr or 30k miles, and transmission and brake fluids every 3 years or 50k miles.
If you don't do any towing, you can stretch those intervals on the differentials to 2 years or 20k miles.
The Pilot's transmission is historically very sensitive to clean fluid and not very robust, so if you go past the 3yr or 50k mi mark before changing it, expect it to fail.
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Old 09-03-2015, 05:54 AM   #8
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We've had no problems with our 09 pilot trans or rear diff.

I'd say this though: the pilot's 4wd system is not "Traditional". I believe it uses electromagnetics to 'activate' the 4wd to the rear axles, which is why it shuts off above 15mph when manually turned on.
The diff fluid is special, I'd take care to change it as recommended. However, it sure is nice to pull the boat out of the ramp with the Pilot drama-free versus the dumbasses in the lifted F250's spinning all 4 because he doesn't know the words "throttle modulation".
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Old 09-03-2015, 05:55 AM   #9
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Quote:
Originally Posted by LI32 View Post
First 4wd/awd vehicle?
They require a lot of regular maintenance - F & R differential fluids every year or 15k miles, transfer case fluids every 2 yr or 30k miles, and transmission and brake fluids every 3 years or 50k miles.
If you don't do any towing, you can stretch those intervals on the differentials to 2 years or 20k miles.
The Pilot's transmission is historically very sensitive to clean fluid and not very robust, so if you go past the 3yr or 50k mi mark before changing it, expect it to fail.
#1 reason we did NOT purchase this vehicle. Waaaaaaaaaaaaaaaaay to costly for maintaince. Look for something else.
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Old 09-03-2015, 06:17 AM   #10
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These vehicles (most Honda/Acura AWD) are able to keep track of usage and the exact mileage of the first rear diff service will vary from customer to customer -- depends of what kind of driving you do. But when it calls for it, do it. The rear diff uses the fluid as a viscous coupling to engage/disengage and vary the distribution of the AWD system.

I did the first diff service on my MDX at home for about $30 if I remember right. Was around 19K miles. Car now has about 44K miles and hasn't called for another one yet.

It's not a big dollar item by any means, and easy enough to do if you are handy. If you have to rely on the dealer to do the work, you're subject to their labor rates of course.
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Old 09-03-2015, 06:25 AM   #11
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If it says it needs it then it should be done. Maintenance is part of owning stuff and deferring maintenance creates problems.
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