Okay, I did a 3000 mile interval oil change on my 07 BA, with the rotella t6 5w40 with a mobil m1-108 filter. on my first ride after the change I noticed much improved clutch performance / cleaner shifting up & down the range. There is a tad more top end noise at idle, but nothing alarming at higher rpms. A heavier viscosity grade T6 (10w40) may be the ticket in reducing the top end noise, but I am loving the improved clutch/shifting response.
