Recently I've noticed that after about 30-40 minutes of driving (1995 525i), my 2nd to 3rd gear shifts are "slow" under light/normal throttle with a slight "bump" at the end. For some reason it seems more noticeable after turning a corner. Also - it doesn't seem to happen in S mode or with heavy throttle. I assume it has something with the transmission fluid tempurature. Fluid/filter was changed 10,000 miles ago ( Mobil 1 ) when I purchased it and now there is about 107k on the odometer. Old fluid looked fine. Any thoughts/recommendations?