Yes, do read the [fine] manual. Most newer cars specify an interval larger than 3,000 miles. Key here is *most*. My friend's 2009 Kia still says every 3,000 in the owner's manual, so he still follows that. Just read and follow your manual; don't blindly follow some sweeping recommendation, whether it's 3,000 or more. If you want to get super fancy, there are oil analyses you can run to see how much "life" is left in your oil, and adjust your interval accordingly.