So I know the 2012 max interval is 8k/6 months recommended. Since I offroad a bit I settled on doing it every 5K due to the extra wear on the oil. Now I have a dilemma, I'm not putting all that much mileage on and I'm about 2 weeks away from 6 months with only about 4000 miles on the oil change. What do you guys think? Just change it at the 6 month mark anyway, or wait for 5K?