Search results

1999 F-250 4x4 7.3 Power Stroke Diesel. Switched to AMSOIL 15W40 AME in October 2002 with approx 71,600 miles on truck. Full flow filter AMSOIL SDF99, no By-Pass Filter. Samples taken at 6 month intervals and full flow filter changed. No top off oil used between filter changes. Sample results...