AJ, with the quality of oil & filter you are using, I agree with SentraSE-R, you could extend that OCI by at least a factor of 3 or 4.
On my wife's '01 Sportage (2.0L), (second cousin to the motor in the Protege), with traveling a total of 3 miles round-trip to/from work daily, I would do an OCI every 18-24 months, as a matter of precautionary maintenance, using regular dino-based oil.
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