I would seriously look at installing the new oil dipstick if it does not have it.
This thread
viewtopic.php?f=12&t=37406 will help you determine what dipstick you have now, and why you should install the new one.
The auto trans has a drain plug, and it is so easy to change the fluid, I cannot help but recommend that you get some drain plug seals for the transmission along with the engine oil plug, and during every or every other oil change, dump the trans fluid and refill it too. It takes three quarts and will go a long ways to keeping the transmission in good health. There is no filter in the transmission, just a screen, so no need to bother with it. I use Amsoil Synthetic ATF fluid.
I'm a big believer in synthetic oil and longer oil change intervals. I run mine a conservative 10,000 mi between oil changes, using Amsoil 5W-30 and change the filter both at the oil change and half way in between at 5,000mi.
Do not forget the cabin air filter. Remove the screw on the RH side of the glove box door and allow it to drop down somewhat and you will see the snap door on the heater box for the cabin air filter. They are about $6 at an auto part place and if yours has not been touched in a while, it will be nasty.
Charles