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  1. silverstate55

    M923a2 Coolant System Drain and Flush:

    I usually got it as a concentrate…. But if you pour half a jug into a clean 5-gallon bucket & mix an equal amount of distilled water into the half-jug, you now have 50/50 mix. Use a large funnel to pour concentrate back into jug. I keep used antifreeze jugs to store my mixed 50/50 antifreeze...
  2. silverstate55

    M923a2 Coolant System Drain and Flush:

    I use distilled water only to flush…too many impurities in tap water. If there’s oil in your antifreeze then add some Cascade dish soap to clean it all out (and find/fix the problem), if you’ve got lots of rust & scale then flush with white vinegar. Otherwise go to NAPA to get the green...
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