get an oil analysis done (Blackstone labs).
Do you have records for previous owners changing the oil that frequently?
Those change intervals sound too good to be true for a 96K mile car.
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GT3 Recaro Seats - Boxster Red
GT3 Aero / Carrera 18" 5 spoke / Potenza RE-11
Fabspeed Headers & Noise Maker
BORN: March 2000 - FINLAND
IMS#1 REPLACED: April 2010 - NEW JERSEY -- LNE DUAL ROW
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