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Honda HCF-2, 46k, 2014 Accord CVT (98k) #5322415 01/14/20 12:22 PM
Joined: Sep 2008
Posts: 14
vvolcano Offline OP
OP Offline
Joined: Sep 2008
Posts: 14
Had the second fluid change come up recently for my Accord's CVT. The factory fill was changed in 2017 at 51k by draining and filling, and I had it analyzed at that time. A single drain and fill changes about half of the fluid (3.9qts). There are some who advocate doing a 3x drain and fill (with some driving in-between changes) to more completely change the fluid. I was curious to see if this was really warranted, so I had this second change analyzed. It's only ever had Honda HCF-2 in it.

[Linked Image from]

So there was about 4 qts of the original factory fill still in circulation in the above analysis, and with the latest drain and fill, I guess that's down to around 2 qts now. Any reason to do additional fluid changes other than having the effect of draining and *not* filling my wallet? There are only a few other UOAs of HCF-2 on the board, and I think this one has shown the most shearing. A VOA on the board showed the 100c viscosity at 7.1cSt for this fluid. A little concerned this will get even worse when the car reaches ~150k miles, but unless I'm noticing an issue driving-wise, is that even a valid concern?

Re: Honda HCF-2, 46k, 2014 Accord CVT (98k) [Re: vvolcano] #5322636 01/14/20 04:09 PM
Joined: Feb 2014
Posts: 3,607
Marco620 Offline
Joined: Feb 2014
Posts: 3,607
I would just replace every 25k and be content. I change mine every 10k with castrol transmax cvt fluid just for piece of mind and I bought like 80 qts on clearance.

15' Civic 1.8 i-vtec 302,000 mi M1 AP 0w20 & LG Biotech, BP CVT Fluid,GUMOUT W/ PEA
Doberman Whisperer!
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Re: Honda HCF-2, 46k, 2014 Accord CVT (98k) [Re: vvolcano] #5323077 01/15/20 03:32 AM
Joined: Jul 2005
Posts: 12,896
dave1251 Offline
Joined: Jul 2005
Posts: 12,896
Just change the fluid every 35-40K miles you are doing more fluid changes than your average Bob the consumer.

make the inside of your engine oil cap white.
don't use.
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