I'll echo the 5W30 here as well. I tried the 5W20 only to get a slight squeal on the front bearing. Only had the 5W20 in the engine 1-day. Went and swapped the 5W30 back in. No more issues.
5W20 works well in the minivan, but not for a larger push rod engine setup. Glad this wasn't a 0W20 problem.
71 Duster 340, 74 T&C 440-Interceptor, 74 Duster /6 225, 76 Aspen /6 225, 79 Volare S/6 225, 81 Pacer I6 258, 88 Colt I4, 85 Caravan 2.6L, 94 Caravan 3.0L, 96 Caravan 3.3L, 00 Ram Van B1500 3.9L, 01 Ram Van B2500 5.2L, 05 Caravan SXT 3.8L, 03 Ram 2500 5.7L HEMI