Hey, Ken. Here's what's required:
1. Oil change.
2. Air filter.
3. Spark plug replacement.
4. Timing belt replacement. (Yes, you have one.)
5. Replace coolant.
6. Several inspections.
Since the plenum must be removed to replace the plugs, I'd also recommend
replacing the plug wires. This will hopefully prevent spending another
large some of money in the near future because you have a wire problem.
You'll probably want to replace the drive belt when replacing the timing
belt, especially if it's in poor condition. The belt must be removed to
replace the timing belt, so there should be no additional labor to replace
it at that time.
Replacing or flushing the transmission fluid is required only if the fluid
condition warrants or if you fit the severe use stipulations in the owner's
manual. If it were my car, even if the fluid were in good condition, I'd
drain and fill it every 30k just for good measure. But again, that's my
I also believe that the coolant service only need be done on a time
interval basis. If you've already replaced the coolant once, then it's
been less than two years since you've done it. In my opinion, the only
reason to do it again based on mileage is for warranty protection.
You'll probably find that most service facilities add extras (such as
chemicals or special "cleaning" services) to the service that aren't
required, and in most cases aren't needed. Find out what, specifically,
each service entails and compare with what you need and what you want to
do. Then you can do a reasonable job of comparing apples to apples. You
may find it least expensive to purchase everything a la carte.