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"  My owner&amp;#039;s manual says I should change the transmission fluid every 30,000 miles, but my father swears it should be changed as often as engine oilevery 4000 to 5000 miles. Will frequent changes damage my transmission? The only thing frequent fluid changes harm is your walletassuming, of course, those changes are performed properly. Frequent changes increase the chance that you or an absentminded mechanic might pour incompatible ATF into your car, strip out a transmission pan bolt, or incorrectly install a new gasket or filter. I always recommend following the manufacturer&amp;#039;s suggestions to the letter: The safest course is to change the fluid and filter as specified in the owner&amp;#039;s manual. That said, the life of transmission fluid is highly dependent on operating temperatures. Frequent stop-and-go driving, towing, or snow plowing heats up the transmission and shortens fluid life. Those extreme cases are also usually covered in the manufacturer&amp;#039;s service schedule, so, again, just follow the instructions. If you&amp;#039;re still worried about the life of your automatic transmission, install a temperature gauge that lets you know exactly how hard your gearbox is being pushed. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/cars/how-to/a3284/how-often-should-you-change-your-transmission-fluid-16589428/>