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refill amount

  1. coolant refill amount? 2003 F250 6.0-85k miles

    General 6.0L Discussion
    Drained 16 quarts from radiator drain pet ****. The refill level in the manual is 27.5 quarts. Where is the rest of the coolant? I flushed twice with tap water and twice with distilled water. Refilled with 16 quarts 50 50 mix of ford gold, and distilled water. Should i have drained the block by...