When I got my 348 I was having a little difficulty engaging gears, especially 2nd when the car was cold. I changed the transmission oil and put in Redline 75W90 NS. There was no immediate change, but after a month or so of frequent driving the shifting is really starting to improve. All gears are engaging a bit smoother, with the most noticable being 2nd when the car is cold. I don't know whether the oil is helping, or if it's just from regular use, but it's definitely more enjoyable to drive. Has anybody else here had similar experience? Any theories as to why it would be getting better?