Went to my local GM dealer today and asked for a bottle of EOS. I was expecting to get a one-quart sized bottle of the 'new' GM EOS #88862586 but instead got this 500ml/16.9oz bottle of ACDelco EOS. Looks to me like a bottle of the 'old' GM EOS with a ACDelco label on it...? Was the 'old' EOS this same size of bottle? Instructions say to pour bottle over cam through lifter bores. Wish it had a date on it because the newest oil spec the label mentions is SH/CD...