Anyone ever do a transmission fluid change (without a machine, no flush). Historically speaking I always avoiding changing auto transmission fluid as you lose the metal flake/particles, and sometimes it does not play out as planned. I have a slight stutter in my CRV, seems to be a part throttle variable speed type issue, not associated with shifts, or even medium/hard acceleration. Just part throttle maintaining speed, could be 15-40 mph. Intermittent. Internet research suggests a transmission fluid change might solve this. 130k miles, not sure if transmission has ever been serviced.