My 2010 just hit 2,500 miles and the oil change indicator is on. The manual says 6,000 miles. i asked the dealership and they said they recommend 3,000 miles but because of where I live (bad air quality) it triggers sooner. Is this true? I know on new cars sometimes you have to change the oil sooner than usual. Is there some kind of electronic trigger that detects when the oil is going bad? It doesn't sound right.