Our 2005 Magnum RT has 43,000 miles on her. When do you change the trans fluid, radiator fluid, rear diff fluid, and spark plugs and wires? I figure I will go with Amsoil or Mobil1. I'm worried that I have allready gone over interval on something. Is there anything else besides what I've mentioned that needs to be changed?

 

Transmission fluid every 30k and spark plugs every 60k, thats also a good time to do all the others as well.

 

rawj7, your question brings to mind a statement one of my college professors used to use. "RTFM" he'd say. This applies to more than just cars by the way. Now you're wondering what RTFM means: Read The F**king Manual.
If you have the owners manual for your car just check in the "maintaining your vehicle" section. It's a wealth of information about your car including maintenance schedules and ALL of the lubricant types and viscosities.
If you're a "do-it-yourselfer" and you don't have a manual go to your local Dodge dealer and pick up a manual from the parts counter. Spending a couple of bucks here can save A LOT of guess work. If you're not into doing your own work then I'd recommend taking your Magnum to your dealer and have it maintained by the pros.

 

I did read it, read my posts, save your keyboard and not reply.

 

I would also l flush/bleed the brakes and power steering fluids. It doesn't hurt to be on the safe side doing all the fluids in the car, which have pretty well been covered.