Edward said:
Not all of us thinks that a total fluid flush is the best and only thing to
do.
True, but on an anecdotal level, I don't think it hurts. I've never
owned anything with an auto until recently when a beautifully maintained
'92 Camry came to live with me after its owner retired and rewarded
herself with an '04 Camry as a "retirement present." She'd had the trans
completely flushed every 30k miles. There are several Explorers in my
"extended" family, and they've only had the basic drain/refill regimen.
My nephew's Accord got the same treatment.
The Camry trans seems to be in great shape, with 216k miles. All the
Explorers had complete rebuilds, at $2000-$2500 ea, between 95k and 105k
miles. Nephew's Accord made just over 150k before it broke all its big
pieces into little ones one day. Another $2500 job.
Of course, all this might also be apples and oranges, based on what the
dealers said about the various cars. A coupla Ford dealers said 90k was
"about average" on their trans, though the independent guy who rebuilt
one of 'em (also builds racing trannies) said regular complete flushes
at 25k miles WILL extend the life a LOT. Honda guy said 150k was "in the
ballpark" of average for that one, and his "lifetime warranty" job
requires changes at 25k (don't remember if it has to be a flush or just
change.) Toyota guy says the tiny "clunk" going from Park to Reverse is
"normal for the mileage but nothing to worry about," so maybe they all
know their product fairly well! Regardless, $2500 buys a lot of complete
flushes and maybe some peace of mind in my book. Naturally, YMMV.
Rick