Originally Posted by Bargegeek

Congrats on the purchase!

What you propose is a good start. On the oil change, many folks just suction the oil out through the top, so no issues with even removing the drain plug. Likewise, the oil filter spins on from the top. It's a cartridge vs. a spin-on type. I use Mann # HU718/5x. Stick with the recommended synthetic oil.

On tires, it's not just about snow. If you plan to drive at lower than 40°F temps (or even store the car sitting on all fours that cold), tire experts recommend sticking with All Season tires - they'll last longer. Continental Conti Touring or Michelin Pilot Sport A/S Plus are ones you'll see on the forum regularly and IMO are better than the OEM tires. I've never run summer only tires, so I'm no help there.

Batteries are a personal choice, but be cognizant of the size. I've had two Interstate MTP-48 H6 in mine that fit perfectly. (Be sure to save the positive post cover from the old battery and switch it over to the new one. Often, the new ones don't come with them.)

Unless you know the service history on the car, I'd suggest replacing the air filters (2 of them on a stock engine cover), cabin air filter and steering stabilizer. Might be good to do a radiator flush and fill while you're at it. Are the hood struts still holding? If not, replace them. Brakes still good? If not, I personally would replace both the pads and rotors.

If you aren't already aware, the Crossfire in many ways is a Mercedes SLK 320 (R170 platform) with different sheet metal. I'm oversimplifying a bit, of course, but you'll find MB parts are generally MUCH cheaper than Mopar/Chrysler specific ones for these cars.

These cars are not difficult to work on, and many of their faults/cures are listed here in the forum, curated by our resident sage, onehundred80. If you like to wrench, consider swapping brake lines to stainless steel (due to age of the rubber ones).