Originally Posted By: Jimzz
Many oils that are SN rated do not have the starburst on the front either. Yet they still meet current oil specs.
A real SN oil lacking the Starburst (i.e. a 10w-40 in SN, an HDEO, a monograde) would generally still display the API Donut on the back, which is also mentioned in most automotive manuals. My G37 manual, for example, refers to both; incidentally, ILSAC for that car is optional, whereas the API specification is what they're seeking.