My 2008 Honda Accord V6 surges at highway cruising or 24,000 RPMs (73-75MPH). This also happens also at or around 40MPH. The "surging" is noticeable while driving and the RPM gauge shows maybe a 100 PRM change. The speed does not change as all. This also happens when using Cruise Control. The transmission works flawlessly in all other situations. I changed the throttle body and the foot pedal thinking it was throttle related. When I did a 9 quart transmission oil change, it did symptoms did get less but did not go away. When I changed the fluid, the old fluid smelled good and "unburnt" and the there were no signs of metal on transmission pan plug. Please help... Thanks in advance.