So I have never done this before but want to learn/ know how to do it, thought this would be a good place to seek advice. I have a 1998 Jeep Wrangler SE with a 2.5L. Yesterday I looked at my coolant and it looks brown. To me, that's not good. I want to change/ drain it. If anyone could let me know what I have to do to drain it and replace the coolant that would be great. Any special tools? how much coolant to get to fill the system after drain. I'm not totally mechanically inclined but I'm not an expert as well. I just like to learn about the vehicle I drive everyday.