I think the key here is yes, Signature meets (and most likely exceeds) all API and ILSAC standards and no, they won't pay to have the " Magic Donut" as part of the marketing. When it's reccomended and used personally by my Honda Master-Certified Technician and used during my regular service at the dealer, I don't have any anxiety over warranty issues. The new formulation is most likely an improvement, but I'm confident that my remaining current Signature will continue to provide excellent protection until I've used it up.