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Modern engines demand better perfomance from the lubricant. In order to fulfill them it is necessary to add the base oil some products that are called “additives”. Between them the Zinc Dialquilditiophosphate family is worldwide used, and there has not been other product better than this as antioxidant-antiwear-anticorrosive. Such perfomance is very closely related to its thermic stability and chemical structure. Our Research and Development group began to work in a six stages project which covered the deep action mechanism's analysis to a manufacture agreement with a private company. At industrial scale it has been got a product which has been tested not only by standar determinations but also in bench, engine and fleet tests, As a result we got not only a competitive product both in price and quality, but also the growth of local suppliers of critical components to the petroleum industry.