Today when I was driving at I-95, check engine light had been on for 15 minutes. Is it the time i should change oil?
(Oil light doesn't light up.) Or gas filter? Any idea?

 

your check engine light doesn't come on notifying to tell you to change your oil...mine comes on because my fuel injectors are acting up...how's your o2 sensor? it could be shot...I'm not sure why else...those are just ideas..