My Commander (2006 3.7L QT1) just hit 60,000 miles. I noticed in the maintenance schedule that it states "Drain and refill the automatic transmission fluid, and replace main sump filter (4.7L/5.7L only)". Nowhere in the maintenance logbook or owner's manual can I find a recommended service interval for the 3.7L. Am I missing something? Does anyone know what Chrysler's recommended service interval is for this transmission?