How often should you change the synthetic oil in your 2002 subaru outback?
According to the 2002 Subaru Outback owner's manual, the synthetic oil should be changed every 7,500 miles or 9 months under normal operating conditions. Severe operating conditions (such as frequent trips of less than 5 miles, extended idling, dusty or muddy conditions, trailer towing, or extended high-speed operation) may require more frequent oil changes. Consult your owner's manual for more information.