NMMA: National Marine Manufacturers Association. Formulated to mix quickly. Helps keep engines clean. Performance without Compromise: At Peak, we're the independent guys, running a family owned business that's nothing like Big Oil. Here, American made quality and value go into good, honest oil, with everything your engine needs to run right for the long haul. For Consumer Information Call: 1-800-289-7234. Visit www.peakauto.com. Made in the USA.