what kind of oil does it take? on 1991 BMW 325i

thats it. so someone please tell me and dont tell me to look inthe manual i dont have one

Asked by for the 1991 BMW 325i
Castrol suggest Magnatec 10-30 or GTX3
Shell suggest Helix ultra 5-40w or Helix plus 10-40
It should be E36, M50 motor so about 6.9L max