I just bought a 2009 Chevy Cobalt a couple of months ago and they told me when my oil gage reaches 15%, I should come in to get it changed. I'm confused though because they also said that it'll be around 15% around the same time that I put 3,000 miles on the car. I've put 3500 on since I bought it, and the oil gage is only at 45%. Should I wait until it says 15 or should I just go in now?
