How to flush coolant system

Open the toilet, cram the whole damn radiator in there, and flush. Don't forget to wipe under the hood. :eek:

OR, you could get a bottle of Prestone radiator flush, and follow the directions on there - usually you drain the coolant, put in water and the flush stuff, run it until warmed up, etc. To completely drain, you should drain the block. The block drain plugs are only accessible from below so it's kind of a pain. You could also backflush using one of those cheap kits, but I've done that before, and I'm not sure it works any better than the flush stuff.
 
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