In Reply to: can't find 36mm socket in Houston... (e) posted by pt on December 08, 1999 at 16:54:12:
A 1 7/16" American socket measures 36.51 mm - believe me,in the low torque application for the oil filter cap, it will not slip. It is only 0.020" larger than the 36 mm. I have used a 1 7/16 socket on both my E34 530i and my E39 540i with no problems whatsoever. It should be available at any NAPA auto parts store or tool supplier.