ABORT! Turns out that ain't their "Grade 1 Racing oil"...appears to be maybe their normal SN rated street oil for modern cars...with less ZDDP as needed for our flat-tappet Birds...

In which case this not so much of a deal...

Hopefully not too many lemmings followed me off this cliff. Glad I bought only one case and I have daily drivers I can burn it off in LOL!

On the upside, this is a high quality American oil company, pumping out of American ground, refining it on American soil, with American workers. So at $4.80/quart shipped to my door I still consider it to be a very good purchase...even if it won't be for my 400...

If I get it in the mail and I like what I read on the bottle, I'll come back and update...otherwise...

NEVERMIND>>>>unless you want some for your daily driver...