ATF change in 92 toyota corolla

A couple of months back when I went to get my oil changed at Jiffy
Lube, they strongly recommended that I change the automatic
transmission fluid on my 92 Toyota Corolla. The car has 134 K miles on
it. They estimated that it would cost me $100. Some people I've
talked to tell me that changing the ATF at this point might lead to
transmission problems and it would be best not to change it. I also
don't use the car that extensively - just about 6K or so every year,
but its been a good little reliable car and if changing the ATF is what
I need to do, I would do it just that I need to know whats best for the
car. If anyone has any advice on this matter, I would very much
appreciate it.
Thanks!

On 28 May 2006 18:58:49 -0700, "pchris" <punita_rebekah@hotmail.com>
wrote:
[color=blue]
>A couple of months back when I went to get my oil changed at Jiffy
>Lube, they strongly recommended that I change the automatic
>transmission fluid on my 92 Toyota Corolla. The car has 134 K miles on
>it. They estimated that it would cost me $100.[/color]

$100? Heh. Do you have "sucker" written on your forehead?

If you're going to have your tranny _FLUSHED_ (100.00), don't let
jiffy lube do it.

Best to leave it alone or at best, replace just the filter and the
fluid required to replace the filter (about 3 quarts).

--
gburnore at DataBasix dot Com
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Here's my experience you can take from it what you will.
It wasn't Jiffy Lube but a 10 minute quick lube place where the techs
seemed more knowledgeable.
Shortly after I purchased the car with 85,000 miles on it, and was in
for an oil change, they pointed out a transmission pan leak so I let
him change the gasket and clean the screen in their solvent tank while
I watched. When I saw the fluid come out, it looked dark to me so I
went ahead with their transmission fluid exchange. There really is no
"flush" - just a machine with two reservoirs. One holds old fluid, one
new. Two hoses are connected to the transmission cooler lines as and
the engine idles, the internal transmission pump slowly pumps out the
old fluid and in with the new.
Perhaps because I'm a purist, I asked how much fluid would be required
and purchased the genuine Toyota ATF at the dealer which was OK with
the quick lube place. I think it took something like 10 quarts and he
suggested I buy 12 just to be safe. Turns out the exchange has some
overlap. The total capacity is not 10 quarts but that was needed for
the process.
Then I discovered Mobil 1 synthetic ATF and began draining the
transmission pan at oil change intervals to do the change over. I also
changed the differential fluid to synthetic and noticed an immediate
improvement in acceleration.
Later when I began doing my own mechanical work and changed the timing
belt, oil pan and transmission pan gaskets, I found two stripped
transmission pan bolts - that was the real reason for the leak.
The one caution I would add, is that Toyota requires you drive at least
ten miles before performing the final fluid level check on the
transmission to get it up to the "hot" range of 158 - 172*F. When the
quick lube place did the final level check, they just told me to drive
around the block.