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    How to fully drain antifreeze

    Thanks. Yes I did put in a rust inhibitor and water pump lubricant. Funny about the “permanent “ antifreeze. The previous owner died about 12 years ago and the car just set after that. No telling how long before that it was changed. Probably never. It took several flushes to get it clean.
  2. C

    How to fully drain antifreeze

    I opened the two threaded plugs on the block and punched a hole through the silicone the previous owner/Chrysler mechanic had put there. Out came almost 2 gallons of fluid. I also ran a reverse flush on the heater core. In both instances the water is almost clear now. I’m doing another flush...
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    How to fully drain antifreeze

    Hello, I’m working on the 1964 Chrysler 300 “383”. I have drained the antifreeze, but can’t get more than about 2.5 gallons out, even running the engine for a few minutes. The Shop Service manual says it holds 16 quarts + 1 for heater. That would be 4.25 gallons. I have drained 2.5 gallons...
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