Hello, I wanted to ask a couple of questions about flushing my cooling system. First off, what kind of products should I use to remove all the deposits and other fun stuff out of my cooling system. Second, where is the drain plug on the block. Last but not least, would it be ok to use that long life coolant in my car, I think its called Dexcool or something along those lines and its orange in color. Thanks for your help in advance.

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Adam,
2003 Volkswagen Golf GL 24,000 miles. 1.9L I-4 TDI 5spd.

1986 300E. 115,000+ miles. 3.0L I-6 1st daily ride, around town only. (Gone)