Join Date: Apr 2009
Location: San Bernardino, Ca.
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According to the service manual:
Automatic Transmission fluid and filter (Drain and Refill) 5.3 quarts DEXRON-III
It is suggested to change it ever 50000 miles for normal use and every 25000 miles for severe service. Your description sounds like normal service. In both cases they say 'change' rather than flush.
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