An oil change indicator (10) for recording one or more parameters indicative of when an engine oil filter (30) has been changed. The oil change indicator (10) includes a sensor (34) that measures oil pressure of an engine (12) at startup. A comparator (40) compares an output provided by the sensor (34) to known parameters to determine whether the oil filter (30) has been changed. A recorder (42) coupled to the comparator (40) records one or several parameters indicative of when the oil filter (30) has been changed.