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Old 01-05-2006, 08:46 AM
sbourg sbourg is offline
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
Quote:
Originally Posted by 86560SEL
I am soon going to remove the "green" coolant and put in new MB or Zerex coolant. I am wondering if I should flush the radiator or just simply do the drain.
Well, if you don't see any contaminants in the coolant, then I would not consider using a chemical to 'flush' the system. You DO need to remove all old coolant, though, and you won't even come close by just draining the radiator. To avoid clogging the radiator, you can remove several hoses and the thermostat, using water to flush out the radiator and block. This will leave H2O in the block, so on reattaching it all, you will need to fill with the prescribed amout of antifreeze for a 50% fill, then top off with water until it stops accepting more.

Steve
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