Compression Ignition Addict
Join Date: Apr 2007
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You can never get to 50/50 mix after a distilled water flush by adding 50/50 coolant - never.
AFTER flushing w/ distilled water the last time, you can charge it w/ 50/50, drain it and recharge it - and repeat 4 or 5 times and get close (you get closer with the block drains open), but you throw away a lot of coolant that way.
Your engine retains 7 quarts of water (assuming you drain both sides of the block) and at least 12 quarts if you do not drain the block).
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