Last week my check engine oil light went on. I was planning on changing my oil anyways since I was at 3000 miles. So I filled it up again and thought that would fix it. But over the past few days the light has been lingering on when I start up my car. I checked my oil again and it's still full. As a sidenote, my car has been feeling slower the last couple of weeks; I'm not sure if it actually is slower or if that's connected to the light, it just feels that way. I started my car up today just to move it into my driveway and the light didn't come on, but I'm expecting it to come on the next time I start up. Any ideas as to what's going on?