[CSX 4027]

I didn't get the high tech low down but, the guy in the shop that had the problem, worked for Jeff Gordon until the mid 90's. He was the one that got me off it. I would just drain it out and refill as above. A little pain in the A$$ but, a head gasket will be more of a pain. Drain the radiator with cap off. Then, un-hook your lower hose andn jack the rear as high as you can go. Don't forget to chock the front wheels. and you will be done. Not terrible