Slight front axle leak
My '02 330xi developed a slight leak on right (passenger side) front axle where it 'exits' the support bracket attached to oil pan. I believe it generates the slight 'hot oil' smell I note while driving. Is the fluid engine oil? Would that account for the loss of crankcase oil (500-700 miles/quart; Mobile 1, 0W-40). I never see oil on garage floor; only found it after taking off plastic shrouds. Axle was replaced about 10k ago w/OEM.