This just in from a mate...
"Does you know what kind of oil goes into the 2.8i BMW gearbox? I believe some of the gearboxes have colour-coded labels which BMW use to spec the oil requirements, but the Web is throwing-up diddly-squat in terms of hard-evidence/details. Some bods reckon on ATF and others are randomly commenting on SAE80 this, and SAE90 that...most of it is bollards! Can someone sensible please help."
Anyone know? Ta.