Was admiring my $1 bottles of Pennzoil Ultra Euro 5w40 and checking to see what specs it meets when I noticed there is no API donut on the back panel. It has a paragraph listing all the specs it "meets or exceeds" including SM/CF, but no donut! What's it mean? I'm sure it's good stuff but did Pennzoil just not bother to get some official cert or something? I know the Pennzoil Q&A said this stuff was discontinued and my bottle has a date on it of Sept 2013. But why oh why no donut?