Radiator drainage
#16
Three Wheelin'
Thread Starter
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I'd like to to know too. With all the oil changes and other scheduled service appointments with my dealer with 3 997's over a decade, this has never even been mentioned. It's a very reputable dealership so I doubt it's an oversight. Guessing they either just did it without much fuzz or it wasn't due on either car when I owned it. Anyone know what the factory recommended replacement schedule is?