Doing OC shortly. Haven't heard much about this at BITOG. Need some opinions. Plan on 10k OCI w/ M1 filter, car has 180k, usually M1 5W-20, never a UOI done on car, uses 1 qy/1500 mi. Car driven by 19 yr old female (step daughter 1.5 hrs away at school), maybe warm up period, maybe not. 75% hwy, 25% city, no leaks. Oil was free. Honda spec is 5W-20.