MTL in all my BMW trannies, 2002s, E12s, E21s, E30, (M10, M20 and M42) E36 (M44, S52), track car, daily driver, fresh rebuilts, trannies with 300+K miles, no issues EVER.
CCA's Mike Miller highly recommends MTL in all manual BMW trannies. (At least through the E46s, IDK about SMGs.)