Okay...well I'm planning on driving down to Texas next month (from upstate NY) ..it's 1600+ miles, so I want to do a little preventive maintanance. I've driven between states before, (not in my trep yet) but this is the farthest I've gone yet. I always like to do a check and change fluids when traveling a distance. So far I change the oil every 3k, but now that my car (2.7L) has about 38k on it, I'm thinking of changing the sparkplugs. It looks a little complicated with seperate coils, and the depth of each plug. Has anyone run into problems changing them? And what is the best plugs anyone's used on this motor? I've usually used Bosch or Autolite platinum in previous cars. I would also like to do a tranny fluid change. How hard is it to get to the pan? I guess that about covers it...I am going to rotate my tires and check out all hoses and connections, etc. Ok one last question...I was thinking of installing a larger Hayden transmission cooler because the stock one looks kinda dinky and I question it's effectiveness...anyone done this before? Okay..any help would be appreciated.....thanks.