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Should I replace the ATF in a 2007 Honda Odyssey w/ 208,841 miles?

Numerous shops advise against drain/ refill. I last changed @ 144k & was advised not to do it ascI could encounter transmission problems as a result. The car has been maintained and no transmission slippage or problems to date

closed as primarily opinion-based by Pᴀᴜʟsᴛᴇʀ2, DucatiKiller, Zaid, Rory Alsop, Poisson Fish Dec 10 '15 at 15:16

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

  • If it isn't recommended in the owner's manual I wouldn't. My car's manual specifically says the transmission is a "sealed unit" and the fluid should never be changed. Since you do have pretty high miles, I'd suggest calling Honda and asking what they think. If you used the factory ATF the first time, you're probably OK. – TMN Dec 9 '15 at 21:16
  • What is ascl stand for? – DucatiKiller Dec 9 '15 at 21:44
  • @DucatiKiller - I think it's supposed to be "as I" ... the "c" was probably a fat finger. – Pᴀᴜʟsᴛᴇʀ2 Dec 10 '15 at 0:38
  • 1
    now it makes sense ty – DucatiKiller Dec 10 '15 at 0:41
  • Unfortunately, I'm voting to close this as primarily opinion based. It is really up to you. If you've kept pretty much on schedule (changed at ~70k, then again at ~144k) you'd be due and you probably wouldn't run into an issue. I would think a regular drain and change of filter would not cause you issues. A reverse flush on the transmission probably would cause you issue (this is the type you see done at most tire shops and quickie oil change places). – Pᴀᴜʟsᴛᴇʀ2 Dec 10 '15 at 0:42