hello

i am finally (almost) a 4runner owner!

i did a pre-purchase check at a local toyota dealer, and they told me
my "transmission fluid was dirty" and i need a flush service for $70.
with 93K miles and no record that this service was ever done before
(previous owner got it at 48 K mi from carmax, i will ask him if he
knows if it was done but i have doubts), should this be done?  another
local toyo dealer told me that it shouldn't be done, just do a drain
and fill.  reasoning is the particles or debris or whatever that's in
there, you don't want to mess with it or whatever the explaination.
the owner i'm buying from told me this also.  i called the first
dealer back and asked again if they ever heard of not doing it they
said no, do it every 15-30K mi.  what should i do?

also, they suggested a "tune up" for $170 stating my spark plugs were
dirty.  i called them back and they said they "adjust the timing,
check the timing" as well. do i need it at this mileage at this time
if they said so? i'm told just changing and gapping the plugs is a
cheap and quick job.

cheers
james