In the past few days, my "Oil Level" idiot light comes on when 1) first starting [for about a minute], and 2) after riding and pulling into the driveway. Also, ocasionally when coming to a stop. Not while driving, only when stopped. I had the 600-mile service, I'm currently at 2,900 miles. Should I be concerned? Or am I ok as long as the light doesn't stay on.