theres nothing there.
the Dtc5284 is what many of our cars have. The "oil pressure switch failure" is quite common. I randomly run the diagnostics and sometimes have it, sometimes dont.
the light may be on for an actual problem. DTC arent the only codes. Go to Autozone, have it read, and come back with it.
1998 Subaru Legacy L Sedan
1999 V6 5-speed
14.6 @ 95 w/ 2.22 60'