here, so I can talk sensibly to my dealer.
and if I lift my foot off the gas, the revs drop slowly. So far so good. If I accelerate, the revs increase slowly.
normal for the road speed (not going into top, I think), and if I come off the gas, the revs drop down to idle (below 1000rpm). So at 60 MPH, I'm seeing 2500rpm, accelerating sees the revs increase rapidly. After say 10 miles, the 'normal' behaviour comes back.
torque converter.