Nope. GM has been offering the OLM for almost 30 years and testing it a lot longer. OLMs have been reviewed by the technical community and were found to perform satisfactorily. Most manufacturers have OLMs now, and some (Honda, at least) no longer recommend an oil change interval. They say follow the OLM. This is old technology. Are you concerned that manufacturers now offer direct fuel injection that provides more power? How will direct injection affect your engine life?