Just purchased a D40 2008 model with 28800 km on the clock. It was last serviced 6/10/2010 at 23200 km 8 months ago. My question is should the vehicle be serviced next at 30000 km or because it has low kilometres and is three years old should it be serviced following the schedule at 60000 km or 36 months. If this is the case should I service the automatic transmission and diff oils etc. Not sure when coolant should be replaced.